Reach milestone 1.25.0

fix: use double check to fix concurrent problem (#1909 )
Co-authored-by: zhangwenhe <zhangwh@ehualu.com>
2021-11-11 21:47:49 +02:00 · 2021-11-11 19:46:24 +02:00 · 2021-10-31 09:12:05 +02:00 · 2021-10-31 09:10:58 +02:00 · 2021-10-31 09:08:49 +02:00 · 2021-10-27 21:44:00 +03:00
463 changed files with 6883 additions and 6337 deletions
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@ -16,6 +16,17 @@
        "content"
      ]
    },
+    {
+      "login": "ohbus",
+      "name": "Subhrodip Mohanta",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/13291222?v=4",
+      "profile": "http://subho.xyz",
+      "contributions": [
+        "code",
+        "review",
+        "maintenance"
+      ]
+    },
    {
      "login": "amit1307",
      "name": "amit1307",
@ -1125,17 +1136,6 @@
        "ideas"
      ]
    },
-    {
-      "login": "ohbus",
-      "name": "Subhrodip Mohanta",
-      "avatar_url": "https://avatars0.githubusercontent.com/u/13291222?v=4",
-      "profile": "http://subho.xyz",
-      "contributions": [
-        "code",
-        "review",
-        "maintenance"
-      ]
-    },
    {
      "login": "nahteb",
      "name": "Bethan Palmer",
@ -1631,9 +1631,99 @@
      "contributions": [
        "translation"
      ]
+    },
+    {
+      "login": "sims-keshri",
+      "name": "Simran Keshri",
+      "avatar_url": "https://avatars.githubusercontent.com/u/62168475?v=4",
+      "profile": "https://github.com/sims-keshri",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "JCarlosR",
+      "name": "JCarlos",
+      "avatar_url": "https://avatars.githubusercontent.com/u/3101238?v=4",
+      "profile": "https://programacionymas.com",
+      "contributions": [
+        "translation"
+      ]
+    },
+    {
+      "login": "Dev-AliGhasemi",
+      "name": "Ali Ghasemi",
+      "avatar_url": "https://avatars.githubusercontent.com/u/60359433?v=4",
+      "profile": "https://www.mrmoshkel.ir",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "carldea",
+      "name": "Carl Dea",
+      "avatar_url": "https://avatars.githubusercontent.com/u/1594624?v=4",
+      "profile": "http://carlfx.wordpress.com",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "Mozartuss",
+      "name": "Mozartus",
+      "avatar_url": "https://avatars.githubusercontent.com/u/32893711?v=4",
+      "profile": "https://github.com/Mozartuss",
+      "contributions": [
+        "translation"
+      ]
+    },
+    {
+      "login": "ManviGoel26",
+      "name": "Manvi Goel",
+      "avatar_url": "https://avatars.githubusercontent.com/u/55682355?v=4",
+      "profile": "https://github.com/ManviGoel26",
+      "contributions": [
+        "doc"
+      ]
+    },
+    {
+      "login": "blueberry404",
+      "name": "Anum Amin",
+      "avatar_url": "https://avatars.githubusercontent.com/u/39243539?v=4",
+      "profile": "https://github.com/blueberry404",
+      "contributions": [
+        "doc"
+      ]
+    },
+    {
+      "login": "uh-zz",
+      "name": "Reo Uehara",
+      "avatar_url": "https://avatars.githubusercontent.com/u/47747828?v=4",
+      "profile": "https://uh-zz.github.io/blog/",
+      "contributions": [
+        "translation"
+      ]
+    },
+    {
+      "login": "Fiordy",
+      "name": "Fiordy",
+      "avatar_url": "https://avatars.githubusercontent.com/u/53420573?v=4",
+      "profile": "https://github.com/Fiordy",
+      "contributions": [
+        "doc"
+      ]
+    },
+    {
+      "login": "harshalkh",
+      "name": "Harshal",
+      "avatar_url": "https://avatars.githubusercontent.com/u/37841724?v=4",
+      "profile": "https://github.com/harshalkh",
+      "contributions": [
+        "code"
+      ]
    }
  ],
-  "contributorsPerLine": 4,
+  "contributorsPerLine": 7,
  "projectName": "java-design-patterns",
  "projectOwner": "iluwatar",
  "repoType": "github",
--- a/.github/workflows/maven-ci.yml
+++ b/.github/workflows/maven-ci.yml
@ -24,6 +24,9 @@
 # This workflow will build a Java project with Maven
 # For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven

+# We are using two jobs here for testing our code on the latest JDK 11 build as well as a more satble build version of 11.0.3
+# You can see the full discussion here https://github.com/iluwatar/java-design-patterns/pull/1868#issue-1029459688
+
 name: Java CI

 on:
@ -33,10 +36,11 @@ on:

 jobs:

-  build:
+  # This Workflow Job will build this project and run Sonar analysis using JDK 11.0.3
+  build-and-analyze:

+    name: Build and Run Sonar analysis on JDK 11.0.3
    runs-on: ubuntu-20.04
-
    steps:

    - name: Checkout Code
@ -45,12 +49,14 @@ jobs:
        # Disabling shallow clone for improving relevancy of SonarQube reporting
        fetch-depth: 0

-    - name: Set up JDK 11
+    - name: Set up JDK 11.0.3
      uses: actions/setup-java@v2
      with:
-        java-version: 11
-        distribution: 'adopt'
+        java-version: 11.0.3
+        distribution: 'zulu'
+        cache: 'maven'

+    # Cache Sonar packages which as used to run anaylysis and collect metrics
    - name: Cache SonarCloud packages
      uses: actions/cache@v2
      with:
@ -58,14 +64,6 @@ jobs:
        key: ${{ runner.os }}-sonar
        restore-keys: ${{ runner.os }}-sonar

-    - name: Cache Maven dependencies
-      uses: actions/cache@v2
-      with:
-        path: ~/.m2/repository
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-        restore-keys: |
-          ${{ runner.os }}-maven-
-
    # Some tests need screen access
    - name: Install xvfb
      run: sudo apt-get install -y xvfb
@ -76,3 +74,28 @@ jobs:
        # These two env variables are needed for sonar analysis
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+
+  
+  # This Workflow Job is going to build the project on the latest stable JDK 11
+  build:
+
+    name: Build and Test on JDK 11
+    runs-on: ubuntu-20.04
+    steps:
+
+    - name: Checkout Code
+      uses: actions/checkout@v2
+
+    - name: Set up JDK 11 (Latest)
+      uses: actions/setup-java@v2
+      with:
+        java-version: 11
+        distribution: 'zulu'
+        cache: 'maven'
+
+    # Some tests need screen access
+    - name: Install xvfb
+      run: sudo apt-get install -y xvfb
+
+    - name: Build with Maven
+      run: xvfb-run ./mvnw clean verify
--- a/.github/workflows/maven-pr-builder.yml
+++ b/.github/workflows/maven-pr-builder.yml
@ -34,25 +34,22 @@ on:
 jobs:
  build:

+    name: Build JDP
    runs-on: ubuntu-20.04
-
+    strategy:
+      matrix:
+        java-version: [ 11.0.3, 11 ]
    steps:
+    
    - name: Checkout Code
      uses: actions/checkout@v2
    
-    - name: Set up JDK 11
+    - name: Set up JDK ${{ matrix.java-version }}
      uses: actions/setup-java@v2
      with:
-        java-version: 11
-        distribution: 'adopt'
-    
-    - name: Cache Maven Dependecies
-      uses: actions/cache@v2
-      with:
-        path: ~/.m2/repository
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-        restore-keys: |
-          ${{ runner.os }}-maven-
+        java-version: ${{ matrix.java-version }}
+        distribution: 'zulu'
+        cache: 'maven'
    
    # Some tests need screen access
    - name: Install xvfb
--- a/README.md
+++ b/README.md
@ -10,12 +10,12 @@
 [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=iluwatar_java-design-patterns&metric=coverage)](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
 [![Join the chat at https://gitter.im/iluwatar/java-design-patterns](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/iluwatar/java-design-patterns?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-179-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-189-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->

 <br/>

-Read in different language : [**zh**](localization/zh/README.md), [**ko**](localization/ko/README.md), [**fr**](localization/fr/README.md), [**tr**](localization/tr/README.md), [**ar**](localization/ar/README.md), [**es**](localization/es/README.md), [**pt**](localization/pt/README.md), [**id**](localization/id/README.md), [**ru**](localization/ru/README.md) 
+Read in different language : [**zh**](localization/zh/README.md), [**ko**](localization/ko/README.md), [**fr**](localization/fr/README.md), [**tr**](localization/tr/README.md), [**ar**](localization/ar/README.md), [**es**](localization/es/README.md), [**pt**](localization/pt/README.md), [**id**](localization/id/README.md), [**ru**](localization/ru/README.md), [**de**](localization/de/README.md), [**ja**](localization/ja/README.md)

 <br/>

@ -77,29 +77,26 @@ This project is licensed under the terms of the MIT license.
 <table>
  <tr>
    <td align="center"><a href="https://github.com/iluwatar"><img src="https://avatars1.githubusercontent.com/u/582346?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ilkka Seppälä</b></sub></a><br /><a href="#projectManagement-iluwatar" title="Project Management">📆</a> <a href="#maintenance-iluwatar" title="Maintenance">🚧</a> <a href="#content-iluwatar" title="Content">🖋</a></td>
+    <td align="center"><a href="http://subho.xyz"><img src="https://avatars0.githubusercontent.com/u/13291222?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Subhrodip Mohanta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ohbus" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aohbus" title="Reviewed Pull Requests">👀</a> <a href="#maintenance-ohbus" title="Maintenance">🚧</a></td>
    <td align="center"><a href="https://github.com/amit1307"><img src="https://avatars0.githubusercontent.com/u/23420222?v=4?s=100" width="100px;" alt=""/><br /><sub><b>amit1307</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=amit1307" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/npathai"><img src="https://avatars2.githubusercontent.com/u/1792515?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Narendra Pathai</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=npathai" title="Code">💻</a> <a href="#ideas-npathai" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Anpathai" title="Reviewed Pull Requests">👀</a></td>
    <td align="center"><a href="https://github.com/fluxw42"><img src="https://avatars1.githubusercontent.com/u/1545460?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jeroen Meulemeester</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=fluxw42" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="http://www.joemccarthy.co.uk"><img src="https://avatars0.githubusercontent.com/u/4526195?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Joseph McCarthy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mikulucky" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/thomasoss"><img src="https://avatars1.githubusercontent.com/u/22516154?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Thomas</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=thomasoss" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/anuragagarwal561994"><img src="https://avatars1.githubusercontent.com/u/6075379?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Anurag Agarwal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=anuragagarwal561994" title="Code">💻</a></td>
-    <td align="center"><a href="https://markusmo3.github.io"><img src="https://avatars1.githubusercontent.com/u/3317416?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Markus Moser</b></sub></a><br /><a href="#design-markusmo3" title="Design">🎨</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=markusmo3" title="Code">💻</a> <a href="#ideas-markusmo3" title="Ideas, Planning, & Feedback">🤔</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/anuragagarwal561994"><img src="https://avatars1.githubusercontent.com/u/6075379?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Anurag Agarwal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=anuragagarwal561994" title="Code">💻</a></td>
+    <td align="center"><a href="https://markusmo3.github.io"><img src="https://avatars1.githubusercontent.com/u/3317416?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Markus Moser</b></sub></a><br /><a href="#design-markusmo3" title="Design">🎨</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=markusmo3" title="Code">💻</a> <a href="#ideas-markusmo3" title="Ideas, Planning, & Feedback">🤔</a></td>
    <td align="center"><a href="https://twitter.com/i_sabiq"><img src="https://avatars1.githubusercontent.com/u/19510920?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sabiq Ihab</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=isabiq" title="Code">💻</a></td>
    <td align="center"><a href="http://inbravo.github.io"><img src="https://avatars3.githubusercontent.com/u/5253764?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Amit Dixit</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=inbravo" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/piyushchaudhari04"><img src="https://avatars3.githubusercontent.com/u/10268029?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Piyush Kailash Chaudhari</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=piyushchaudhari04" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/joshzambales"><img src="https://avatars1.githubusercontent.com/u/8704552?v=4?s=100" width="100px;" alt=""/><br /><sub><b>joshzambales</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=joshzambales" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/Crossy147"><img src="https://avatars2.githubusercontent.com/u/7272996?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kamil Pietruszka</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Crossy147" title="Code">💻</a></td>
  </tr>
  <tr>
-    <td align="center"><a href="https://github.com/Crossy147"><img src="https://avatars2.githubusercontent.com/u/7272996?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kamil Pietruszka</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Crossy147" title="Code">💻</a></td>
    <td align="center"><a href="http://cs.joensuu.fi/~zkhayda"><img src="https://avatars2.githubusercontent.com/u/660742?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Zafar Khaydarov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zafarella" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=zafarella" title="Documentation">📖</a></td>
    <td align="center"><a href="https://kemitix.github.io/"><img src="https://avatars1.githubusercontent.com/u/1147749?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Paul Campbell</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kemitix" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/Argyro-Sioziou"><img src="https://avatars0.githubusercontent.com/u/22822639?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Argyro Sioziou</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Argyro-Sioziou" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/TylerMcConville"><img src="https://avatars0.githubusercontent.com/u/4946449?v=4?s=100" width="100px;" alt=""/><br /><sub><b>TylerMcConville</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=TylerMcConville" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/saksham93"><img src="https://avatars1.githubusercontent.com/u/37399540?v=4?s=100" width="100px;" alt=""/><br /><sub><b>saksham93</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=saksham93" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/nikhilbarar"><img src="https://avatars2.githubusercontent.com/u/37332144?v=4?s=100" width="100px;" alt=""/><br /><sub><b>nikhilbarar</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nikhilbarar" title="Code">💻</a></td>
@ -110,38 +107,32 @@ This project is licensed under the terms of the MIT license.
    <td align="center"><a href="https://github.com/JuhoKang"><img src="https://avatars1.githubusercontent.com/u/4745294?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Juho Kang</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JuhoKang" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/dheeraj-mummareddy"><img src="https://avatars2.githubusercontent.com/u/7002230?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Dheeraj Mummareddy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dheeraj-mummareddy" title="Code">💻</a></td>
    <td align="center"><a href="https://www.bernardosulzbach.com"><img src="https://avatars0.githubusercontent.com/u/8271090?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Bernardo Sulzbach</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=bernardosulzbach" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/4lexis"><img src="https://avatars0.githubusercontent.com/u/19871727?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Aleksandar Dudukovic</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=4lexis" title="Code">💻</a></td>
    <td align="center"><a href="https://www.yusufaytas.com"><img src="https://avatars2.githubusercontent.com/u/1049483?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Yusuf Aytaş</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yusufaytas" title="Code">💻</a></td>
    <td align="center"><a href="http://futurehomes.hu"><img src="https://avatars2.githubusercontent.com/u/1001491?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mihály Kuprivecz</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qpi" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/kapinuss"><img src="https://avatars0.githubusercontent.com/u/17639945?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Stanislav Kapinus</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kapinuss" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/kapinuss"><img src="https://avatars0.githubusercontent.com/u/17639945?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Stanislav Kapinus</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kapinuss" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/gvsharma"><img src="https://avatars1.githubusercontent.com/u/6648152?v=4?s=100" width="100px;" alt=""/><br /><sub><b>GVSharma</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=gvsharma" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/SrdjanPaunovic"><img src="https://avatars1.githubusercontent.com/u/22815104?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Srđan Paunović</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=SrdjanPaunovic" title="Code">💻</a></td>
    <td align="center"><a href="https://sideris.xyz/"><img src="https://avatars3.githubusercontent.com/u/5484694?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Petros G. Sideris</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sideris" title="Code">💻</a></td>
    <td align="center"><a href="https://www.linkedin.com/in/pramodgupta3/"><img src="https://avatars1.githubusercontent.com/u/2184241?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Pramod Gupta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AIAmPramod" title="Reviewed Pull Requests">👀</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://amarnath510.github.io/portfolio"><img src="https://avatars0.githubusercontent.com/u/4599623?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Amarnath Chandana</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Amarnath510" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/Anurag870"><img src="https://avatars1.githubusercontent.com/u/6295975?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Anurag870</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Anurag870" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=Anurag870" title="Documentation">📖</a></td>
-    <td align="center"><a href="http://theerroris.me"><img src="https://avatars0.githubusercontent.com/u/1685953?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Wes Gilleland</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Deathnerd" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/Harshrajsinh"><img src="https://avatars2.githubusercontent.com/u/22811531?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Harshraj Thakor</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Harshrajsinh" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="http://theerroris.me"><img src="https://avatars0.githubusercontent.com/u/1685953?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Wes Gilleland</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Deathnerd" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/Harshrajsinh"><img src="https://avatars2.githubusercontent.com/u/22811531?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Harshraj Thakor</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Harshrajsinh" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/MaVdbussche"><img src="https://avatars1.githubusercontent.com/u/26136934?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Martin Vandenbussche</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MaVdbussche" title="Code">💻</a></td>
    <td align="center"><a href="https://alexsomai.com"><img src="https://avatars1.githubusercontent.com/u/5720977?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Alexandru Somai</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=alexsomai" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/amogozov"><img src="https://avatars3.githubusercontent.com/u/7372215?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Artur Mogozov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=amogozov" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/anthonycampbell"><img src="https://avatars3.githubusercontent.com/u/10249255?v=4?s=100" width="100px;" alt=""/><br /><sub><b>anthony</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=anthonycampbell" title="Code">💻</a></td>
+    <td align="center"><a href="http://ccygnus.com/"><img src="https://avatars1.githubusercontent.com/u/9342724?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Christian Cygnus</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=christophercolumbusdog" title="Code">💻</a></td>
  </tr>
  <tr>
-    <td align="center"><a href="http://ccygnus.com/"><img src="https://avatars1.githubusercontent.com/u/9342724?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Christian Cygnus</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=christophercolumbusdog" title="Code">💻</a></td>
    <td align="center"><a href="https://about.me/dzmitryh"><img src="https://avatars2.githubusercontent.com/u/5390492?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Dima Gubin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dzmitryh" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/jjjimenez100"><img src="https://avatars3.githubusercontent.com/u/22243493?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Joshua Jimenez</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=jjjimenez100" title="Code">💻</a></td>
    <td align="center"><a href="http://about.me/kaiwinter"><img src="https://avatars0.githubusercontent.com/u/110982?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kai Winter</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kaiwinter" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/lbroman"><img src="https://avatars1.githubusercontent.com/u/86007?v=4?s=100" width="100px;" alt=""/><br /><sub><b>lbroman</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=lbroman" title="Code">💻</a></td>
    <td align="center"><a href="https://przemeknowak.com"><img src="https://avatars1.githubusercontent.com/u/3254609?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Przemek</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pnowy" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/prafful1"><img src="https://avatars0.githubusercontent.com/u/14350274?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Prafful Agarwal</b></sub></a><br /><a href="#content-prafful1" title="Content">🖋</a></td>
@ -152,38 +143,32 @@ This project is licensed under the terms of the MIT license.
    <td align="center"><a href="https://github.com/valdar-hu"><img src="https://avatars3.githubusercontent.com/u/17962817?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Krisztián Nagy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=valdar-hu" title="Code">💻</a></td>
    <td align="center"><a href="https://www.vanogrid.com"><img src="https://avatars0.githubusercontent.com/u/4307918?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Alexander Ivanov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vanogrid" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/yosfik"><img src="https://avatars3.githubusercontent.com/u/4850270?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Yosfik Alqadri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yosfik" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/7agustibm"><img src="https://avatars0.githubusercontent.com/u/8149332?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Agustí Becerra Milà</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=7agustibm" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/Juaanma"><img src="https://avatars3.githubusercontent.com/u/7390500?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Juan Manuel Suárez</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Juaanma" title="Code">💻</a></td>
    <td align="center"><a href="http://www.devsedge.net/"><img src="https://avatars0.githubusercontent.com/u/9956006?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Luigi Cortese</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=LuigiCortese" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/Rzeposlaw"><img src="https://avatars2.githubusercontent.com/u/18425745?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Katarzyna Rzepecka</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Rzeposlaw" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/Rzeposlaw"><img src="https://avatars2.githubusercontent.com/u/18425745?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Katarzyna Rzepecka</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Rzeposlaw" title="Code">💻</a></td>
    <td align="center"><a href="http://adamski.pro"><img src="https://avatars1.githubusercontent.com/u/6537430?v=4?s=100" width="100px;" alt=""/><br /><sub><b>adamski.pro</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=akrystian" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/baislsl"><img src="https://avatars0.githubusercontent.com/u/17060584?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Shengli Bai</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=baislsl" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/besok"><img src="https://avatars2.githubusercontent.com/u/29834592?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Boris</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=besok" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/dmitraver"><img src="https://avatars3.githubusercontent.com/u/1798156?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Dmitry Avershin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dmitraver" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/fanofxiaofeng"><img src="https://avatars0.githubusercontent.com/u/3983683?v=4?s=100" width="100px;" alt=""/><br /><sub><b>靳阳</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=fanofxiaofeng" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/hoangnam2261"><img src="https://avatars2.githubusercontent.com/u/31692990?v=4?s=100" width="100px;" alt=""/><br /><sub><b>hoangnam2261</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hoangnam2261" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/jarpit96"><img src="https://avatars2.githubusercontent.com/u/10098713?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Arpit Jain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=jarpit96" title="Code">💻</a></td>
-    <td align="center"><a href="http://joningi.net"><img src="https://avatars2.githubusercontent.com/u/6115148?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jón Ingi Sveinbjörnsson</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=joningiwork" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/jarpit96"><img src="https://avatars2.githubusercontent.com/u/10098713?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Arpit Jain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=jarpit96" title="Code">💻</a></td>
+    <td align="center"><a href="http://joningi.net"><img src="https://avatars2.githubusercontent.com/u/6115148?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jón Ingi Sveinbjörnsson</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=joningiwork" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/kirill-vlasov"><img src="https://avatars3.githubusercontent.com/u/16112495?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kirill Vlasov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kirill-vlasov" title="Code">💻</a></td>
    <td align="center"><a href="http://mitchell-irvin.com"><img src="https://avatars0.githubusercontent.com/u/16233245?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mitchell Irvin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mitchellirvin" title="Code">💻</a></td>
    <td align="center"><a href="https://ranjeet-floyd.github.io"><img src="https://avatars0.githubusercontent.com/u/1992972?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ranjeet</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ranjeet-floyd" title="Code">💻</a></td>
    <td align="center"><a href="https://alwayswithme.github.io"><img src="https://avatars3.githubusercontent.com/u/3234786?v=4?s=100" width="100px;" alt=""/><br /><sub><b>PhoenixYip</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Alwayswithme" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/MSaifAsif"><img src="https://avatars1.githubusercontent.com/u/6280554?v=4?s=100" width="100px;" alt=""/><br /><sub><b>M Saif Asif</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MSaifAsif" title="Code">💻</a></td>
  </tr>
  <tr>
-    <td align="center"><a href="https://github.com/MSaifAsif"><img src="https://avatars1.githubusercontent.com/u/6280554?v=4?s=100" width="100px;" alt=""/><br /><sub><b>M Saif Asif</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MSaifAsif" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/kanwarpreet25"><img src="https://avatars0.githubusercontent.com/u/39183641?v=4?s=100" width="100px;" alt=""/><br /><sub><b>kanwarpreet25</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kanwarpreet25" title="Code">💻</a></td>
    <td align="center"><a href="http://leonmak.me"><img src="https://avatars3.githubusercontent.com/u/13071508?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Leon Mak</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=leonmak" title="Code">💻</a></td>
    <td align="center"><a href="http://www.wramdemark.se"><img src="https://avatars2.githubusercontent.com/u/7052193?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Per Wramdemark</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=perwramdemark" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/waisuan"><img src="https://avatars2.githubusercontent.com/u/10975700?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Evan Sia Wai Suan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=waisuan" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/AnaghaSasikumar"><img src="https://avatars2.githubusercontent.com/u/42939261?v=4?s=100" width="100px;" alt=""/><br /><sub><b>AnaghaSasikumar</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=AnaghaSasikumar" title="Code">💻</a></td>
    <td align="center"><a href="https://christofferh.com"><img src="https://avatars1.githubusercontent.com/u/767643?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Christoffer Hamberg</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=christofferh" title="Code">💻</a></td>
@ -194,38 +179,32 @@ This project is licensed under the terms of the MIT license.
    <td align="center"><a href="https://github.com/leogtzr"><img src="https://avatars0.githubusercontent.com/u/1211969?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Leo Gutiérrez Ramírez</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=leogtzr" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/npczwh"><img src="https://avatars0.githubusercontent.com/u/14066422?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Zhang WH</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=npczwh" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/oconnelc"><img src="https://avatars0.githubusercontent.com/u/1112973?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Christopher O'Connell</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=oconnelc" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/giorgosmav21"><img src="https://avatars2.githubusercontent.com/u/22855493?v=4?s=100" width="100px;" alt=""/><br /><sub><b>George Mavroeidis</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=giorgosmav21" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/hbothra15"><img src="https://avatars1.githubusercontent.com/u/7418012?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Hemant Bothra</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hbothra15" title="Code">💻</a> <a href="#design-hbothra15" title="Design">🎨</a></td>
    <td align="center"><a href="https://www.kevinpeters.net/about/"><img src="https://avatars1.githubusercontent.com/u/12736734?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kevin Peters</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=igeligel" title="Code">💻</a></td>
-    <td align="center"><a href="https://llorllale.github.io/"><img src="https://avatars1.githubusercontent.com/u/2019896?v=4?s=100" width="100px;" alt=""/><br /><sub><b>George Aristy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=llorllale" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://llorllale.github.io/"><img src="https://avatars1.githubusercontent.com/u/2019896?v=4?s=100" width="100px;" alt=""/><br /><sub><b>George Aristy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=llorllale" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/mookkiah"><img src="https://avatars1.githubusercontent.com/u/8975264?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mahendran Mookkiah</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mookkiah" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/Azureyjt"><img src="https://avatars2.githubusercontent.com/u/18476317?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Azureyjt</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Azureyjt" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/vehpsr"><img src="https://avatars2.githubusercontent.com/u/3133265?v=4?s=100" width="100px;" alt=""/><br /><sub><b>gans</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vehpsr" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/ThatGuyWithTheHat"><img src="https://avatars0.githubusercontent.com/u/24470582?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Matt</b></sub></a><br /><a href="#content-ThatGuyWithTheHat" title="Content">🖋</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://www.linkedin.com/in/gopinathlangote/"><img src="https://avatars2.githubusercontent.com/u/10210778?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Gopinath Langote</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=gopinath-langote" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/hoswey"><img src="https://avatars3.githubusercontent.com/u/3689445?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Hoswey</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hoswey" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/amit2103"><img src="https://avatars3.githubusercontent.com/u/7566692?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Amit Pandey</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=amit2103" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/gwildor28"><img src="https://avatars0.githubusercontent.com/u/16000365?v=4?s=100" width="100px;" alt=""/><br /><sub><b>gwildor28</b></sub></a><br /><a href="#content-gwildor28" title="Content">🖋</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/amit2103"><img src="https://avatars3.githubusercontent.com/u/7566692?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Amit Pandey</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=amit2103" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/gwildor28"><img src="https://avatars0.githubusercontent.com/u/16000365?v=4?s=100" width="100px;" alt=""/><br /><sub><b>gwildor28</b></sub></a><br /><a href="#content-gwildor28" title="Content">🖋</a></td>
    <td align="center"><a href="https://t.me/paul_docker"><img src="https://avatars1.githubusercontent.com/u/2404785?v=4?s=100" width="100px;" alt=""/><br /><sub><b>田浩</b></sub></a><br /><a href="#content-llitfkitfk" title="Content">🖋</a></td>
    <td align="center"><a href="https://twitter.com/StPitsios"><img src="https://avatars1.githubusercontent.com/u/6773603?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Stamatis Pitsios</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pitsios-s" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/qza"><img src="https://avatars3.githubusercontent.com/u/233149?v=4?s=100" width="100px;" alt=""/><br /><sub><b>qza</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qza" title="Code">💻</a></td>
    <td align="center"><a href="http://tschis.github.io"><img src="https://avatars1.githubusercontent.com/u/20662669?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Rodolfo Forte</b></sub></a><br /><a href="#content-Tschis" title="Content">🖋</a></td>
+    <td align="center"><a href="https://github.com/ankurkaushal"><img src="https://avatars2.githubusercontent.com/u/2236616?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ankur Kaushal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ankurkaushal" title="Code">💻</a></td>
  </tr>
  <tr>
-    <td align="center"><a href="https://github.com/ankurkaushal"><img src="https://avatars2.githubusercontent.com/u/2236616?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ankur Kaushal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ankurkaushal" title="Code">💻</a></td>
    <td align="center"><a href="https://www.linkedin.com/in/ovidijus-okinskas/"><img src="https://avatars0.githubusercontent.com/u/20372387?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ovidijus Okinskas</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=okinskas" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/robertt240"><img src="https://avatars1.githubusercontent.com/u/9137432?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Robert Kasperczyk</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=robertt240" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/trautonen"><img src="https://avatars3.githubusercontent.com/u/1641063?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tapio Rautonen</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=trautonen" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="http://vk.com/yuri.orlov"><img src="https://avatars0.githubusercontent.com/u/1595733?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Yuri Orlov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yorlov" title="Code">💻</a></td>
    <td align="center"><a href="https://www.linkedin.com/in/varunu28/"><img src="https://avatars0.githubusercontent.com/u/7676016?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Varun Upadhyay</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=varunu28" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/PalAditya"><img src="https://avatars2.githubusercontent.com/u/25523604?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Aditya Pal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=PalAditya" title="Code">💻</a></td>
@ -236,50 +215,41 @@ This project is licensed under the terms of the MIT license.
    <td align="center"><a href="https://github.com/d4gg4d"><img src="https://avatars2.githubusercontent.com/u/99457?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sami Airaksinen</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=d4gg4d" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/vertti"><img src="https://avatars0.githubusercontent.com/u/557751?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Janne Sinivirta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vertti" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/Bobo1239"><img src="https://avatars1.githubusercontent.com/u/2302947?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Boris-Chengbiao Zhou</b></sub></a><br /><a href="#content-Bobo1239" title="Content">🖋</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://jahhein.github.io"><img src="https://avatars2.githubusercontent.com/u/10779515?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jacob Hein</b></sub></a><br /><a href="#content-Jahhein" title="Content">🖋</a></td>
    <td align="center"><a href="https://github.com/iamrichardjones"><img src="https://avatars3.githubusercontent.com/u/14842151?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Richard Jones</b></sub></a><br /><a href="#content-iamrichardjones" title="Content">🖋</a></td>
    <td align="center"><a href="https://rachelcarmena.github.io"><img src="https://avatars0.githubusercontent.com/u/22792183?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Rachel M. Carmena</b></sub></a><br /><a href="#content-rachelcarmena" title="Content">🖋</a></td>
-    <td align="center"><a href="https://zd-zero.github.io"><img src="https://avatars0.githubusercontent.com/u/21978370?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Zaerald Denze Lungos</b></sub></a><br /><a href="#content-zd-zero" title="Content">🖋</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://zd-zero.github.io"><img src="https://avatars0.githubusercontent.com/u/21978370?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Zaerald Denze Lungos</b></sub></a><br /><a href="#content-zd-zero" title="Content">🖋</a></td>
    <td align="center"><a href="https://webpro.nl"><img src="https://avatars1.githubusercontent.com/u/456426?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Lars Kappert</b></sub></a><br /><a href="#content-webpro" title="Content">🖋</a></td>
    <td align="center"><a href="https://xiaod.info"><img src="https://avatars2.githubusercontent.com/u/21277644?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mike Liu</b></sub></a><br /><a href="#translation-xiaod-dev" title="Translation">🌍</a></td>
    <td align="center"><a href="https://github.com/charlesfinley"><img src="https://avatars1.githubusercontent.com/u/6307904?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Matt Dolan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=charlesfinley" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Acharlesfinley" title="Reviewed Pull Requests">👀</a></td>
    <td align="center"><a href="https://github.com/MananS77"><img src="https://avatars3.githubusercontent.com/u/21033516?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Manan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AMananS77" title="Reviewed Pull Requests">👀</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/nishant"><img src="https://avatars2.githubusercontent.com/u/15331971?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Nishant Arora</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nishant" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/raja-peeyush-kumar-singh"><img src="https://avatars0.githubusercontent.com/u/5496024?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Peeyush</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=raja-peeyush-kumar-singh" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/ravening"><img src="https://avatars1.githubusercontent.com/u/10645273?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Rakesh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ravening" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aravening" title="Reviewed Pull Requests">👀</a></td>
-    <td align="center"><a href="https://github.com/vINCENT8888801"><img src="https://avatars0.githubusercontent.com/u/8037883?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Wei Seng</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vINCENT8888801" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/ravening"><img src="https://avatars1.githubusercontent.com/u/10645273?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Rakesh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ravening" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aravening" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://github.com/vINCENT8888801"><img src="https://avatars0.githubusercontent.com/u/8037883?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Wei Seng</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vINCENT8888801" title="Code">💻</a></td>
    <td align="center"><a href="https://www.linkedin.com/in/ashish-trivedi-218379135/"><img src="https://avatars3.githubusercontent.com/u/23194128?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ashish Trivedi</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ashishtrivedi16" title="Code">💻</a></td>
    <td align="center"><a href="https://rayyounghong.com"><img src="https://avatars1.githubusercontent.com/u/41055099?v=4?s=100" width="100px;" alt=""/><br /><sub><b>洪月阳</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=RayYH" title="Code">💻</a></td>
    <td align="center"><a href="https://xdvrx1.github.io/"><img src="https://avatars0.githubusercontent.com/u/47092464?v=4?s=100" width="100px;" alt=""/><br /><sub><b>xdvrx1</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Axdvrx1" title="Reviewed Pull Requests">👀</a> <a href="#ideas-xdvrx1" title="Ideas, Planning, & Feedback">🤔</a></td>
-    <td align="center"><a href="http://subho.xyz"><img src="https://avatars0.githubusercontent.com/u/13291222?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Subhrodip Mohanta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ohbus" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aohbus" title="Reviewed Pull Requests">👀</a> <a href="#maintenance-ohbus" title="Maintenance">🚧</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/nahteb"><img src="https://avatars3.githubusercontent.com/u/13121570?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Bethan Palmer</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nahteb" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/ToxicDreamz"><img src="https://avatars0.githubusercontent.com/u/45225562?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Toxic Dreamz</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ToxicDreamz" title="Code">💻</a></td>
-    <td align="center"><a href="http://www.edycutjong.com"><img src="https://avatars1.githubusercontent.com/u/1098102?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Edy Cu Tjong</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=edycutjong" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://github.com/mkrzywanski"><img src="https://avatars0.githubusercontent.com/u/15279585?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Michał Krzywański</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mkrzywanski" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="http://www.edycutjong.com"><img src="https://avatars1.githubusercontent.com/u/1098102?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Edy Cu Tjong</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=edycutjong" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/mkrzywanski"><img src="https://avatars0.githubusercontent.com/u/15279585?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Michał Krzywański</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mkrzywanski" title="Code">💻</a></td>
    <td align="center"><a href="https://www.stefan-birkner.de"><img src="https://avatars1.githubusercontent.com/u/711349?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Stefan Birkner</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=stefanbirkner" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/fedorskvorcov"><img src="https://avatars3.githubusercontent.com/u/43882212?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Fedor Skvorcov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=fedorskvorcov" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/samilAyoub"><img src="https://avatars0.githubusercontent.com/u/61546990?v=4?s=100" width="100px;" alt=""/><br /><sub><b>samilAyoub</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=samilAyoub" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/vdlald"><img src="https://avatars0.githubusercontent.com/u/29997701?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Vladislav Golubinov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vdlald" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/swarajsaaj"><img src="https://avatars2.githubusercontent.com/u/6285049?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Swaraj</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=swarajsaaj" title="Code">💻</a></td>
  </tr>
  <tr>
-    <td align="center"><a href="https://github.com/swarajsaaj"><img src="https://avatars2.githubusercontent.com/u/6285049?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Swaraj</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=swarajsaaj" title="Code">💻</a></td>
    <td align="center"><a href="http://christophflick.de"><img src="https://avatars0.githubusercontent.com/u/4465376?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Christoph Flick</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ChFlick" title="Documentation">📖</a></td>
    <td align="center"><a href="https://github.com/Ascenio"><img src="https://avatars1.githubusercontent.com/u/7662016?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ascênio</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AAscenio" title="Reviewed Pull Requests">👀</a></td>
    <td align="center"><a href="https://www.linkedin.com/in/domenico-sibilio/"><img src="https://avatars2.githubusercontent.com/u/24280982?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Domenico Sibilio</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dsibilio" title="Documentation">📖</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/akashchandwani"><img src="https://avatars2.githubusercontent.com/u/3483277?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Akash Chandwani</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aakashchandwani" title="Reviewed Pull Requests">👀</a></td>
    <td align="center"><a href="http://www.linkedin.com/in/manannikov"><img src="https://avatars2.githubusercontent.com/u/7019769?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Pavlo Manannikov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=manannikov" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/eimanip"><img src="https://avatars0.githubusercontent.com/u/20307301?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Eiman</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=eimanip" title="Code">💻</a></td>
@ -290,38 +260,32 @@ This project is licensed under the terms of the MIT license.
    <td align="center"><a href="https://github.com/gkulkarni2020"><img src="https://avatars3.githubusercontent.com/u/5161548?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Girish Kulkarni</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=gkulkarni2020" title="Documentation">📖</a></td>
    <td align="center"><a href="https://github.com/omk13"><img src="https://avatars0.githubusercontent.com/u/59054172?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Omar Karazoun</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=omk13" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/jeff303"><img src="https://avatars0.githubusercontent.com/u/3521562?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jeff Evans</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=jeff303" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://viveksb007.github.io"><img src="https://avatars1.githubusercontent.com/u/12713808?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Vivek Singh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=viveksb007" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/siavashsoleymani"><img src="https://avatars2.githubusercontent.com/u/18074419?v=4?s=100" width="100px;" alt=""/><br /><sub><b>siavash</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=siavashsoleymani" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/ruchpeanuts"><img src="https://avatars0.githubusercontent.com/u/29301900?v=4?s=100" width="100px;" alt=""/><br /><sub><b>ruchpeanuts</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ruchpeanuts" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://github.com/warp125"><img src="https://avatars1.githubusercontent.com/u/48073115?v=4?s=100" width="100px;" alt=""/><br /><sub><b>warp125</b></sub></a><br /><a href="#translation-warp125" title="Translation">🌍</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/warp125"><img src="https://avatars1.githubusercontent.com/u/48073115?v=4?s=100" width="100px;" alt=""/><br /><sub><b>warp125</b></sub></a><br /><a href="#translation-warp125" title="Translation">🌍</a></td>
    <td align="center"><a href="http://libkhadir.fr"><img src="https://avatars1.githubusercontent.com/u/45130488?v=4?s=100" width="100px;" alt=""/><br /><sub><b>KHADIR Tayeb</b></sub></a><br /><a href="#translation-tkhadir" title="Translation">🌍</a></td>
    <td align="center"><a href="https://github.com/ignite1771"><img src="https://avatars2.githubusercontent.com/u/59446563?v=4?s=100" width="100px;" alt=""/><br /><sub><b>ignite1771</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ignite1771" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/demirhalil"><img src="https://avatars1.githubusercontent.com/u/22895118?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Halil Demir</b></sub></a><br /><a href="#translation-demirhalil" title="Translation">🌍</a></td>
    <td align="center"><a href="https://github.com/rohit10000"><img src="https://avatars.githubusercontent.com/u/20845565?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Rohit Singh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=rohit10000" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/byoungju94"><img src="https://avatars.githubusercontent.com/u/42516378?v=4?s=100" width="100px;" alt=""/><br /><sub><b>byoungju94</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=byoungju94" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/moustafafarhat"><img src="https://avatars.githubusercontent.com/u/38836727?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Moustafa Farhat</b></sub></a><br /><a href="#translation-moustafafarhat" title="Translation">🌍</a></td>
-    <td align="center"><a href="https://github.com/richardmr36"><img src="https://avatars.githubusercontent.com/u/19147333?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Martel Richard</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=richardmr36" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/va1m"><img src="https://avatars.githubusercontent.com/u/17025445?v=4?s=100" width="100px;" alt=""/><br /><sub><b>va1m</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=va1m" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="https://github.com/richardmr36"><img src="https://avatars.githubusercontent.com/u/19147333?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Martel Richard</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=richardmr36" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/va1m"><img src="https://avatars.githubusercontent.com/u/17025445?v=4?s=100" width="100px;" alt=""/><br /><sub><b>va1m</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=va1m" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/noamgrinch"><img src="https://avatars.githubusercontent.com/u/31648669?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Noam Greenshtain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=noamgrinch" title="Code">💻</a></td>
    <td align="center"><a href="https://xuyonghong.cn/"><img src="https://avatars.githubusercontent.com/u/14086462?v=4?s=100" width="100px;" alt=""/><br /><sub><b>yonghong Xu</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qfxl" title="Documentation">📖</a></td>
    <td align="center"><a href="https://www.linkedin.com/in/jinisha-vora"><img src="https://avatars.githubusercontent.com/u/40777762?v=4?s=100" width="100px;" alt=""/><br /><sub><b>jinishavora</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Ajinishavora" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=jinishavora" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/eas5"><img src="https://avatars.githubusercontent.com/u/50836521?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Elvys Soares</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=eas5" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/zWeBrain"><img src="https://avatars.githubusercontent.com/u/46642512?v=4?s=100" width="100px;" alt=""/><br /><sub><b>zWeBrain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zWeBrain" title="Code">💻</a></td>
  </tr>
  <tr>
-    <td align="center"><a href="https://github.com/zWeBrain"><img src="https://avatars.githubusercontent.com/u/46642512?v=4?s=100" width="100px;" alt=""/><br /><sub><b>zWeBrain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zWeBrain" title="Code">💻</a></td>
    <td align="center"><a href="https://al-assad.github.io/notion/"><img src="https://avatars.githubusercontent.com/u/22493821?v=4?s=100" width="100px;" alt=""/><br /><sub><b>余林颖</b></sub></a><br /><a href="#translation-Al-assad" title="Translation">🌍</a></td>
    <td align="center"><a href="https://github.com/STudio26"><img src="https://avatars.githubusercontent.com/u/6988911?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Alain</b></sub></a><br /><a href="#translation-STudio26" title="Translation">🌍</a></td>
    <td align="center"><a href="https://github.com/DEV-VRUPER"><img src="https://avatars.githubusercontent.com/u/30525467?v=4?s=100" width="100px;" alt=""/><br /><sub><b>VR</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=DEV-VRUPER" title="Documentation">📖</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/JackieNim"><img src="https://avatars.githubusercontent.com/u/4138836?v=4?s=100" width="100px;" alt=""/><br /><sub><b>JackieNim</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JackieNim" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/EdisonE3"><img src="https://avatars.githubusercontent.com/u/52118917?v=4?s=100" width="100px;" alt=""/><br /><sub><b>EdisonE3</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=EdisonE3" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/tao-sun2"><img src="https://avatars.githubusercontent.com/u/66189688?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tao</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=tao-sun2" title="Code">💻</a></td>
@ -332,17 +296,27 @@ This project is licensed under the terms of the MIT license.
    <td align="center"><a href="https://www.linkedin.com/in/souzasamuel/"><img src="https://avatars.githubusercontent.com/u/17254162?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Samuel Souza</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=samuelpsouza" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/marlo2222"><img src="https://avatars.githubusercontent.com/u/40809563?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Marlo Henrique</b></sub></a><br /><a href="#translation-marlo2222" title="Translation">🌍</a></td>
    <td align="center"><a href="https://github.com/AndriyPyzh"><img src="https://avatars.githubusercontent.com/u/57706635?v=4?s=100" width="100px;" alt=""/><br /><sub><b>AndriyPyzh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=AndriyPyzh" title="Code">💻</a></td>
-  </tr>
-  <tr>
    <td align="center"><a href="https://github.com/karthikbhat13"><img src="https://avatars.githubusercontent.com/u/22431014?v=4?s=100" width="100px;" alt=""/><br /><sub><b>karthikbhat13</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=karthikbhat13" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/mortezaadi"><img src="https://avatars.githubusercontent.com/u/1329687?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Morteza Adigozalpour</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mortezaadi" title="Code">💻</a></td>
    <td align="center"><a href="https://stackoverflow.com/users/308565/nagaraj-tantri"><img src="https://avatars.githubusercontent.com/u/3784194?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Nagaraj Tantri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=tan31989" title="Code">💻</a></td>
-    <td align="center"><a href="http://scuccimarri.it"><img src="https://avatars.githubusercontent.com/u/7107651?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Francesco Scuccimarri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=frascu" title="Code">💻</a></td>
  </tr>
  <tr>
+    <td align="center"><a href="http://scuccimarri.it"><img src="https://avatars.githubusercontent.com/u/7107651?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Francesco Scuccimarri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=frascu" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/Conhan93"><img src="https://avatars.githubusercontent.com/u/71334757?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Conny Hansson</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Conhan93" title="Documentation">📖</a></td>
    <td align="center"><a href="http://muklasr.medium.com"><img src="https://avatars.githubusercontent.com/u/43443753?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Muklas Rahmanto</b></sub></a><br /><a href="#translation-muklasr" title="Translation">🌍</a></td>
    <td align="center"><a href="https://github.com/VxDxK"><img src="https://avatars.githubusercontent.com/u/38704817?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Vadim</b></sub></a><br /><a href="#translation-VxDxK" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://github.com/sims-keshri"><img src="https://avatars.githubusercontent.com/u/62168475?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Simran Keshri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sims-keshri" title="Code">💻</a></td>
+    <td align="center"><a href="https://programacionymas.com"><img src="https://avatars.githubusercontent.com/u/3101238?v=4?s=100" width="100px;" alt=""/><br /><sub><b>JCarlos</b></sub></a><br /><a href="#translation-JCarlosR" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://www.mrmoshkel.ir"><img src="https://avatars.githubusercontent.com/u/60359433?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ali Ghasemi</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Dev-AliGhasemi" title="Code">💻</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="http://carlfx.wordpress.com"><img src="https://avatars.githubusercontent.com/u/1594624?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Carl Dea</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=carldea" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/Mozartuss"><img src="https://avatars.githubusercontent.com/u/32893711?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mozartus</b></sub></a><br /><a href="#translation-Mozartuss" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://github.com/ManviGoel26"><img src="https://avatars.githubusercontent.com/u/55682355?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Manvi Goel</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ManviGoel26" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/blueberry404"><img src="https://avatars.githubusercontent.com/u/39243539?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Anum Amin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=blueberry404" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://uh-zz.github.io/blog/"><img src="https://avatars.githubusercontent.com/u/47747828?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Reo Uehara</b></sub></a><br /><a href="#translation-uh-zz" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://github.com/Fiordy"><img src="https://avatars.githubusercontent.com/u/53420573?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Fiordy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Fiordy" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/harshalkh"><img src="https://avatars.githubusercontent.com/u/37841724?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Harshal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=harshalkh" title="Code">💻</a></td>
  </tr>
 </table>

--- a/abstract-document/README.md
+++ b/abstract-document/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Abstract Document
-category: Structural
+folder: abstract-document
+permalink: /patterns/abstract-document/
+categories: Structural
 language: en
 tags: 
 - Extensibility
--- a/abstract-document/pom.xml
+++ b/abstract-document/pom.xml
@ -23,42 +23,40 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<artifactId>java-design-patterns</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>abstract-document</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<!-- Maven assembly plugin is invoked with default setting which we have 
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>abstract-document</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <!-- Maven assembly plugin is invoked with default setting which we have 
 				in parent pom and specifying the class having main method -->
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.abstractdocument.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.abstractdocument.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/abstract-factory/README.md
+++ b/abstract-factory/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Abstract Factory
-category: Creational
+folder: abstract-factory
+permalink: /patterns/abstract-factory/
+categories: Creational
 language: en
 tags:
 - Gang of Four
@ -84,24 +87,36 @@ public interface KingdomFactory {
 }

 public class ElfKingdomFactory implements KingdomFactory {
+
+  @Override
  public Castle createCastle() {
    return new ElfCastle();
  }
+
+  @Override
  public King createKing() {
    return new ElfKing();
  }
+
+  @Override
  public Army createArmy() {
    return new ElfArmy();
  }
 }

 public class OrcKingdomFactory implements KingdomFactory {
+
+  @Override
  public Castle createCastle() {
    return new OrcCastle();
  }
+
+  @Override
  public King createKing() {
    return new OrcKing();
  }
+  
+  @Override
  public Army createArmy() {
    return new OrcArmy();
  }
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,43 +23,40 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>abstract-factory</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<!-- Maven assembly plugin is invoked with default setting which we have 
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>abstract-factory</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <!-- Maven assembly plugin is invoked with default setting which we have 
 				in parent pom and specifying the class having main method -->
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.abstractfactory.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.abstractfactory.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/active-object/README.md
+++ b/active-object/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Active Object
-category: Concurrency
+folder: active-object
+permalink: /patterns/active-object/
+categories: Concurrency
 language: en
 tags:
 - Performance
@ -121,3 +124,7 @@ Now, we can create multiple creatures such as Orcs, tell them to eat and roam, a
 ## Class diagram

 ![alt text](./etc/active-object.urm.png "Active Object class diagram")
+
+## Tutorials
+
+* [Android and Java Concurrency: The Active Object Pattern](https://www.youtube.com/watch?v=Cd8t2u5Qmvc)
--- a/active-object/pom.xml
+++ b/active-object/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,43 +23,40 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>active-object</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<!-- Maven assembly plugin is invoked with default setting which we have 
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>active-object</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <!-- Maven assembly plugin is invoked with default setting which we have 
 				in parent pom and specifying the class having main method -->
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.activeobject.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.activeobject.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/acyclic-visitor/README.md
+++ b/acyclic-visitor/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Acyclic Visitor
-category: Behavioral
+folder: acyclic-visitor
+permalink: /patterns/acyclic-visitor/
+categories: Behavioral
 language: en
 tags:
 - Extensibility
@ -135,6 +138,10 @@ This pattern can be used:
 * When the visited class hierarchy will be frequently extended with new derivatives of the Element class.
 * When the recompilation, relinking, retesting or redistribution of the derivatives of Element is very expensive.

+## Tutorial
+
+* [Acyclic Visitor Pattern Example](https://codecrafter.blogspot.com/2012/12/the-acyclic-visitor-pattern.html)
+
 ## Consequences

 The good:
--- a/acyclic-visitor/pom.xml
+++ b/acyclic-visitor/pom.xml
@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -22,53 +23,47 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-
-	<artifactId>acyclic-visitor</artifactId>
-
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<maven.compiler.source>1.8</maven.compiler.source>
-		<maven.compiler.target>1.8</maven.compiler.target>
-	</properties>
-
-	<dependencies>
-		<!-- https://mvnrepository.com/artifact/org.assertj/assertj-core -->
-		<dependency>
-			<groupId>org.assertj</groupId>
-			<artifactId>assertj-core</artifactId>
-			<version>3.9.1</version>
-			<scope>test</scope>
-		</dependency>
-		<!-- https://mvnrepository.com/artifact/uk.org.lidalia/slf4j-test -->
-		<dependency>
-			<groupId>uk.org.lidalia</groupId>
-			<artifactId>slf4j-test</artifactId>
-			<version>1.2.0</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-all</artifactId>
-			<version>1.10.19</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>acyclic-visitor</artifactId>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
+  </properties>
+  <dependencies>
+    <!-- https://mvnrepository.com/artifact/org.assertj/assertj-core -->
+    <dependency>
+      <groupId>org.assertj</groupId>
+      <artifactId>assertj-core</artifactId>
+      <version>3.9.1</version>
+      <scope>test</scope>
+    </dependency>
+    <!-- https://mvnrepository.com/artifact/uk.org.lidalia/slf4j-test -->
+    <dependency>
+      <groupId>uk.org.lidalia</groupId>
+      <artifactId>slf4j-test</artifactId>
+      <version>1.2.0</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-all</artifactId>
+      <version>1.10.19</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
    <plugins>
      <!-- Maven assembly plugin is invoked with default setting which we have 
        in parent pom and specifying the class having main method -->
--- a/adapter/README.md
+++ b/adapter/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Adapter
-category: Structural
+folder: adapter
+permalink: /patterns/adapter/
+categories: Structural
 language: en
 tags:
 - Gang of Four
@ -102,6 +105,12 @@ Use the Adapter pattern when
 * you need to use several existing subclasses, but it's impractical to adapt their interface by subclassing every one. An object adapter can adapt the interface of its parent class.
 * most of the applications using third party libraries use adapters as a middle layer between the application and the 3rd party library to decouple the application from the library. If another library has to be used only an adapter for the new library is required without having to change the application code.

+## Tutorials
+
+* [Dzone](https://dzone.com/articles/adapter-design-pattern-in-java)
+* [Refactoring Guru](https://refactoring.guru/design-patterns/adapter/java/example)
+* [Baeldung](https://www.baeldung.com/java-adapter-pattern)
+
 ## Consequences
 Class and object adapters have different trade-offs. A class adapter

--- a/adapter/pom.xml
+++ b/adapter/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,48 +23,45 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>adapter</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-core</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<!-- Maven assembly plugin is invoked with default setting which we have 
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>adapter</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <!-- Maven assembly plugin is invoked with default setting which we have 
 				in parent pom and specifying the class having main method -->
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.adapter.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.adapter.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/aggregator-microservices/README.md
+++ b/aggregator-microservices/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Aggregator Microservices
-category: Architectural
+folder: aggregator-microservices
+permalink: /patterns/aggregator-microservices/
+categories: Architectural
 language: en
 tags:
 - Cloud distributed
--- a/aggregator-microservices/aggregator-service/pom.xml
+++ b/aggregator-microservices/aggregator-service/pom.xml
@ -23,68 +23,65 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<artifactId>aggregator-microservices</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>aggregator-service</artifactId>
-	<packaging>jar</packaging>
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-webmvc</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-core</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-				<executions>
-					<execution>
-						<goals>
-							<goal>repackage</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-			<!-- Maven assembly plugin is invoked with default setting which we have 
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>aggregator-microservices</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>aggregator-service</artifactId>
+  <packaging>jar</packaging>
+  <dependencies>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-webmvc</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>repackage</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <!-- Maven assembly plugin is invoked with default setting which we have 
 				in parent pom and specifying the class having main method -->
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.aggregator.microservices.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.aggregator.microservices.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/aggregator-microservices/information-microservice/pom.xml
+++ b/aggregator-microservices/information-microservice/pom.xml
@ -23,63 +23,58 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<artifactId>aggregator-microservices</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<modelVersion>4.0.0</modelVersion>
-
-	<artifactId>information-microservice</artifactId>
-	<packaging>jar</packaging>
-
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-webmvc</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-				<executions>
-					<execution>
-						<goals>
-							<goal>repackage</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.information.microservices.InformationApplication</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>aggregator-microservices</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>information-microservice</artifactId>
+  <packaging>jar</packaging>
+  <dependencies>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-webmvc</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>repackage</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.information.microservices.InformationApplication</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/aggregator-microservices/inventory-microservice/pom.xml
+++ b/aggregator-microservices/inventory-microservice/pom.xml
@ -23,62 +23,58 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<artifactId>aggregator-microservices</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>inventory-microservice</artifactId>
-
-	<packaging>jar</packaging>
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-webmvc</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-				<executions>
-					<execution>
-						<goals>
-							<goal>repackage</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.inventory.microservices.InventoryApplication</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>aggregator-microservices</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>inventory-microservice</artifactId>
+  <packaging>jar</packaging>
+  <dependencies>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-webmvc</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>repackage</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.inventory.microservices.InventoryApplication</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/aggregator-microservices/pom.xml
+++ b/aggregator-microservices/pom.xml
@ -23,20 +23,18 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <parent>
-        <artifactId>java-design-patterns</artifactId>
-        <groupId>com.iluwatar</groupId>
-        <version>1.25.0-SNAPSHOT</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-    <artifactId>aggregator-microservices</artifactId>
-    <packaging>pom</packaging>
-    <modules>
-        <module>information-microservice</module>
-        <module>aggregator-service</module>
-        <module>inventory-microservice</module>
-    </modules>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>aggregator-microservices</artifactId>
+  <packaging>pom</packaging>
+  <modules>
+    <module>information-microservice</module>
+    <module>aggregator-service</module>
+    <module>inventory-microservice</module>
+  </modules>
 </project>
--- a/ambassador/README.md
+++ b/ambassador/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Ambassador
-category: Structural
+folder: ambassador
+permalink: /patterns/ambassador/
+categories: Structural
 language: en
 tags:
  - Decoupling
--- a/ambassador/pom.xml
+++ b/ambassador/pom.xml
@ -23,40 +23,38 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<artifactId>java-design-patterns</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>ambassador</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.ambassador.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>ambassador</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.ambassador.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/api-gateway/README.md
+++ b/api-gateway/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: API Gateway
-category: Architectural
+folder: api-gateway
+permalink: /patterns/api-gateway/
+categories: Architectural
 language: en
 tags:
  - Cloud distributed
--- a/api-gateway/api-gateway-service/pom.xml
+++ b/api-gateway/api-gateway-service/pom.xml
@ -23,13 +23,11 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <parent>
    <artifactId>api-gateway</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>api-gateway-service</artifactId>
@ -54,7 +52,6 @@
      <scope>test</scope>
    </dependency>
  </dependencies>
-
  <build>
    <plugins>
      <plugin>
--- a/api-gateway/image-microservice/pom.xml
+++ b/api-gateway/image-microservice/pom.xml
@ -23,13 +23,11 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <parent>
    <artifactId>api-gateway</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>image-microservice</artifactId>
@ -49,7 +47,6 @@
      <scope>test</scope>
    </dependency>
  </dependencies>
-
  <build>
    <plugins>
      <plugin>
--- a/api-gateway/pom.xml
+++ b/api-gateway/pom.xml
@ -23,13 +23,11 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <parent>
    <artifactId>java-design-patterns</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>api-gateway</artifactId>
--- a/api-gateway/price-microservice/pom.xml
+++ b/api-gateway/price-microservice/pom.xml
@ -23,19 +23,15 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <parent>
    <artifactId>api-gateway</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
-
  <modelVersion>4.0.0</modelVersion>
  <artifactId>price-microservice</artifactId>
  <packaging>jar</packaging>
-
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
@ -51,7 +47,6 @@
      <scope>test</scope>
    </dependency>
  </dependencies>
-
  <build>
    <plugins>
      <plugin>
--- a/arrange-act-assert/README.md
+++ b/arrange-act-assert/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Arrange/Act/Assert
-category: Idiom
+folder: arrange-act-assert
+permalink: /patterns/arrange-act-assert/
+categories: Idiom
 language: en
 tags:
 - Testing
--- a/arrange-act-assert/pom.xml
+++ b/arrange-act-assert/pom.xml
@ -23,16 +23,13 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <parent>
    <artifactId>java-design-patterns</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
-
  <artifactId>arrange-act-assert</artifactId>
  <dependencies>
    <dependency>
@ -41,4 +38,4 @@
      <scope>test</scope>
    </dependency>
  </dependencies>
-</project>
+</project>
--- a/async-method-invocation/README.md
+++ b/async-method-invocation/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Async Method Invocation
-category: Concurrency
+folder: async-method-invocation
+permalink: /patterns/async-method-invocation/
+categories: Concurrency
 language: en
 tags:
 - Reactive
--- a/async-method-invocation/pom.xml
+++ b/async-method-invocation/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,46 +23,43 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>async-method-invocation</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-core</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.async.method.invocation.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>async-method-invocation</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.async.method.invocation.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/App.java
+++ b/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/App.java
@ -59,9 +59,12 @@ import lombok.extern.slf4j.Slf4j;
@Slf4j
 public class App {

+  private static final String ROCKET_LAUNCH_LOG_PATTERN = "Space rocket <%s> launched successfully";
+
  /**
   * Program entry point.
   */
+
  public static void main(String[] args) throws Exception {
    // construct a new executor that will run async tasks
    var executor = new ThreadAsyncExecutor();
@ -87,9 +90,9 @@ public class App {
    asyncResult5.await();

    // log the results of the tasks, callbacks log immediately when complete
-    log("Space rocket <" + result1 + "> launch complete");
-    log("Space rocket <" + result2 + "> launch complete");
-    log("Space rocket <" + result3 + "> launch complete");
+    log(String.format(ROCKET_LAUNCH_LOG_PATTERN, result1));
+    log(String.format(ROCKET_LAUNCH_LOG_PATTERN, result2));
+    log(String.format(ROCKET_LAUNCH_LOG_PATTERN, result3));
  }

  /**
@ -102,7 +105,7 @@ public class App {
  private static <T> Callable<T> lazyval(T value, long delayMillis) {
    return () -> {
      Thread.sleep(delayMillis);
-      log("Space rocket <" + value + "> launched successfully");
+      log(String.format(ROCKET_LAUNCH_LOG_PATTERN, value));
      return value;
    };
  }
--- a/balking/README.md
+++ b/balking/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Balking
-category: Concurrency
+folder: balking
+permalink: /patterns/balking/
+categories: Concurrency
 language: en
 tags:
 - Decoupling
--- a/balking/pom.xml
+++ b/balking/pom.xml
@ -23,41 +23,38 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<artifactId>java-design-patterns</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<modelVersion>4.0.0</modelVersion>
-
-	<artifactId>balking</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.balking.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>balking</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.balking.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/bridge/README.md
+++ b/bridge/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Bridge
-category: Structural
+folder: bridge
+permalink: /patterns/bridge/
+categories: Structural
 language: en
 tags:
 - Gang of Four
--- a/bridge/pom.xml
+++ b/bridge/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,30 +23,27 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>bridge</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-core</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>bridge</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
--- a/builder/README.md
+++ b/builder/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Builder
-category: Creational
+folder: builder
+permalink: /patterns/builder/
+categories: Creational
 language: en
 tags:
 - Gang of Four
@ -131,6 +134,12 @@ Use the Builder pattern when
 * The algorithm for creating a complex object should be independent of the parts that make up the object and how they're assembled
 * The construction process must allow different representations for the object that's constructed

+## Tutorials
+
+* [Refactoring Guru](https://refactoring.guru/design-patterns/builder)
+* [Oracle Blog](https://blogs.oracle.com/javamagazine/post/exploring-joshua-blochs-builder-design-pattern-in-java)
+* [Journal Dev](https://www.journaldev.com/1425/builder-design-pattern-in-java)
+
 ## Known uses

 * [java.lang.StringBuilder](http://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html)
--- a/builder/pom.xml
+++ b/builder/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,25 +23,22 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>builder</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>builder</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
--- a/business-delegate/README.md
+++ b/business-delegate/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Business Delegate
-category: Structural
+folder: business-delegate
+permalink: /patterns/business-delegate/
+categories: Structural
 language: en
 tags:
 - Decoupling
--- a/business-delegate/pom.xml
+++ b/business-delegate/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,46 +23,43 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>business-delegate</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-core</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.business.delegate.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>business-delegate</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.business.delegate.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/bytecode/README.md
+++ b/bytecode/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Bytecode
-category: Behavioral
+folder: bytecode
+permalink: /patterns/bytecode/
+categories: Behavioral
 language: en
 tags:
 - Game programming
--- a/bytecode/pom.xml
+++ b/bytecode/pom.xml
@ -23,43 +23,38 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<artifactId>java-design-patterns</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<modelVersion>4.0.0</modelVersion>
-
-	<artifactId>bytecode</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.bytecode.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
-
-</project>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>bytecode</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.bytecode.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
--- a/bytecode/src/main/java/com/iluwatar/bytecode/App.java
+++ b/bytecode/src/main/java/com/iluwatar/bytecode/App.java
@ -42,6 +42,14 @@ import lombok.extern.slf4j.Slf4j;
@Slf4j
 public class App {

+  private static final String LITERAL_0 = "LITERAL 0";
+  private static final String HEALTH_PATTERN = "%s_HEALTH";
+  private static final String GET_AGILITY = "GET_AGILITY";
+  private static final String GET_WISDOM = "GET_WISDOM";
+  private static final String ADD = "ADD";
+  private static final String LITERAL_2 = "LITERAL 2";
+  private static final String DIVIDE = "DIVIDE";
+
  /**
   * Main app method.
   *
@ -53,17 +61,17 @@ public class App {
        new Wizard(45, 7, 11, 0, 0),
        new Wizard(36, 18, 8, 0, 0));

-    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("GET_HEALTH"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("GET_AGILITY"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("GET_WISDOM"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("ADD"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 2"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("DIVIDE"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("ADD"));
-    vm.execute(InstructionConverterUtil.convertToByteCode("SET_HEALTH"));
+    vm.execute(InstructionConverterUtil.convertToByteCode(LITERAL_0));
+    vm.execute(InstructionConverterUtil.convertToByteCode(LITERAL_0));
+    vm.execute(InstructionConverterUtil.convertToByteCode(String.format(HEALTH_PATTERN, "GET")));
+    vm.execute(InstructionConverterUtil.convertToByteCode(LITERAL_0));
+    vm.execute(InstructionConverterUtil.convertToByteCode(GET_AGILITY));
+    vm.execute(InstructionConverterUtil.convertToByteCode(LITERAL_0));
+    vm.execute(InstructionConverterUtil.convertToByteCode(GET_WISDOM));
+    vm.execute(InstructionConverterUtil.convertToByteCode(ADD));
+    vm.execute(InstructionConverterUtil.convertToByteCode(LITERAL_2));
+    vm.execute(InstructionConverterUtil.convertToByteCode(DIVIDE));
+    vm.execute(InstructionConverterUtil.convertToByteCode(ADD));
+    vm.execute(InstructionConverterUtil.convertToByteCode(String.format(HEALTH_PATTERN, "SET")));
  }
 }
--- a/caching/README.md
+++ b/caching/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Caching
-category: Behavioral
+folder: caching
+permalink: /patterns/caching/
+categories: Behavioral
 language: en
 tags:
  - Performance
--- a/caching/etc/caching.png
+++ b/caching/etc/caching.png
--- a/caching/pom.xml
+++ b/caching/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,13 +23,12 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>caching</artifactId>
  <dependencies>
@ -38,12 +37,6 @@
      <artifactId>junit-jupiter-engine</artifactId>
      <scope>test</scope>
    </dependency>
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-junit-jupiter</artifactId>
-      <version>3.12.4</version>
-      <scope>test</scope>
-    </dependency>
    <dependency>
      <groupId>org.mockito</groupId>
      <artifactId>mockito-all</artifactId>
@ -53,7 +46,6 @@
    <dependency>
      <groupId>org.mongodb</groupId>
      <artifactId>mongo-java-driver</artifactId>
-      <version>3.4.1</version>
    </dependency>
  </dependencies>
  <!--
--- a/caching/src/test/java/com/iluwatar/caching/database/MongoDbTest.java
+++ b/caching/src/test/java/com/iluwatar/caching/database/MongoDbTest.java
@ -16,7 +16,6 @@ import static com.iluwatar.caching.constants.CachingConstants.USER_ID;
 import static com.iluwatar.caching.constants.CachingConstants.USER_NAME;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.*;

 class MongoDbTest {
--- a/callback/README.md
+++ b/callback/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Callback
-category: Idiom
+folder: callback
+permalink: /patterns/callback/
+categories: Idiom
 language: en
 tags:
 - Reactive
--- a/callback/pom.xml
+++ b/callback/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,13 +23,12 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>callback</artifactId>
  <dependencies>
--- a/chain-of-responsibility/README.md
+++ b/chain-of-responsibility/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Chain of responsibility
-category: Behavioral
+folder: chain-of-responsibility
+permalink: /patterns/chain-of-responsibility/
+categories: Behavioral
 language: en
 tags:
 - Gang of Four
--- a/chain-of-responsibility/pom.xml
+++ b/chain-of-responsibility/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,13 +23,12 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>chain-of-responsibility</artifactId>
  <dependencies>
--- a/checkstyle-suppressions.xml
+++ b/checkstyle-suppressions.xml
@ -23,11 +23,10 @@
    THE SOFTWARE.

 -->
-<!DOCTYPE suppressions PUBLIC "-//Puppy Crawl//DTD Suppressions 1.1//EN"
-    "http://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
+<!DOCTYPE suppressions PUBLIC "-//Puppy Crawl//DTD Suppressions 1.1//EN" "http://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
 <suppressions>
-   <suppress checks="AvoidStarImport" files="[\\/]src[\\/]test[\\/]java[\\/]"/>
-   <suppress checks="[a-zA-Z0-9]*" files="[\\/]src[\\/]test[\\/]resources[\\/]"/>
-   <suppress checks="[a-zA-Z0-9]*" files="[\\/]build[\\/]generated-sources[\\/]"/>
-   <suppress checks="[a-zA-Z0-9]*" files="[\\/]src[\\/]main[\\/]resources[\\/]"/>
+  <suppress checks="AvoidStarImport" files="[\\/]src[\\/]test[\\/]java[\\/]" />
+  <suppress checks="[a-zA-Z0-9]*" files="[\\/]src[\\/]test[\\/]resources[\\/]" />
+  <suppress checks="[a-zA-Z0-9]*" files="[\\/]build[\\/]generated-sources[\\/]" />
+  <suppress checks="[a-zA-Z0-9]*" files="[\\/]src[\\/]main[\\/]resources[\\/]" />
 </suppressions>
--- a/circuit-breaker/README.md
+++ b/circuit-breaker/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Circuit Breaker
-category: Behavioral
+folder: circuit-breaker
+permalink: /patterns/circuit-breaker/
+categories: Behavioral
 language: en
 tags:
  - Performance
--- a/circuit-breaker/pom.xml
+++ b/circuit-breaker/pom.xml
@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,21 +24,21 @@

 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-    <parent>
-        <groupId>com.iluwatar</groupId>
-        <artifactId>java-design-patterns</artifactId>
-        <version>1.25.0-SNAPSHOT</version>
-    </parent>
-    <artifactId>circuit-breaker</artifactId>
-    <dependencies>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-    <build>
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>circuit-breaker</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
--- a/cloud-static-content-hosting/README.md
+++ b/cloud-static-content-hosting/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Static Content Hosting
-category: Cloud
+folder: cloud-static-content-hosting
+permalink: /patterns/cloud-static-content-hosting/
+categories: Cloud
 language: en
 tags:
 - Cloud distributed
--- a/collection-pipeline/README.md
+++ b/collection-pipeline/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Collection Pipeline
-category: Functional
+folder: collection-pipeline
+permalink: /patterns/collection-pipeline/
+categories: Functional
 language: en
 tags:
 - Reactive
--- a/collection-pipeline/pom.xml
+++ b/collection-pipeline/pom.xml
@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -27,7 +28,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>collection-pipeline</artifactId>
  <dependencies>
--- a/combinator/README.md
+++ b/combinator/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Combinator
-category: Idiom
+folder: combinator
+permalink: /patterns/combinator/
+categories: Idiom
 language: en
 tags:
 - Reactive
--- a/combinator/pom.xml
+++ b/combinator/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,15 +23,13 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
-
  <artifactId>combinator</artifactId>
  <dependencies>
    <dependency>
@ -40,5 +38,4 @@
      <scope>test</scope>
    </dependency>
  </dependencies>
-
 </project>
--- a/command/README.md
+++ b/command/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Command
-category: Behavioral
+folder: command
+permalink: /patterns/command/
+categories: Behavioral
 language: en
 tags:
 - Gang of Four
--- a/command/pom.xml
+++ b/command/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,13 +23,12 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>command</artifactId>
  <dependencies>
--- a/commander/README.md
+++ b/commander/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Commander
-category: Concurrency
+folder: commander
+permalink: /patterns/commander/
+categories: Concurrency
 language: en
 tags:
 - Cloud distributed
--- a/commander/pom.xml
+++ b/commander/pom.xml
@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -27,7 +28,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>commander</artifactId>
  <dependencies>
@ -55,7 +56,7 @@
            </configuration>
          </execution>
          <execution>
-          <id>Message</id>
+            <id>Message</id>
            <configuration>
              <archive>
                <manifest>
--- a/composite-entity/README.md
+++ b/composite-entity/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Composite Entity
-category: Structural
+folder: composite-entity
+permalink: /patterns/composite-entity/
+categories: Structural
 language: en
 tags:
 - Enterprise Integration Pattern
--- a/composite-entity/pom.xml
+++ b/composite-entity/pom.xml
@ -23,41 +23,38 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <parent>
-        <artifactId>java-design-patterns</artifactId>
-        <groupId>com.iluwatar</groupId>
-        <version>1.25.0-SNAPSHOT</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-    <artifactId>composite-entity</artifactId>
-    <dependencies>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <configuration>
-                            <archive>
-                                <manifest>
-                                    <mainClass>com.iluwatar.composite-entity.com.iluwatar.compositeentity.App</mainClass>
-                                </manifest>
-                            </archive>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
-</project>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>composite-entity</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.composite-entity.com.iluwatar.compositeentity.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
--- a/composite/README.md
+++ b/composite/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Composite
-category: Structural
+folder: composite
+permalink: /patterns/composite/
+categories: Structural
 language: en
 tags:
 - Gang of Four
--- a/composite/pom.xml
+++ b/composite/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,13 +23,12 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>composite</artifactId>
  <dependencies>
--- a/converter/README.md
+++ b/converter/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Converter
-category: Creational
+folder: converter
+permalink: /patterns/converter/
+categories: Creational
 language: en
 tags:
 - Decoupling
--- a/converter/pom.xml
+++ b/converter/pom.xml
@ -23,28 +23,26 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<parent>
-		<artifactId>java-design-patterns</artifactId>
-		<groupId>com.iluwatar</groupId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>converter</artifactId>
-	<modelVersion>4.0.0</modelVersion>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>com.google.guava</groupId>
-			<artifactId>guava</artifactId>
-		</dependency>
-	</dependencies>
-	<build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>converter</artifactId>
+  <modelVersion>4.0.0</modelVersion>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
+  </dependencies>
+  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
@ -63,5 +61,4 @@
      </plugin>
    </plugins>
  </build>
-
 </project>
--- a/cqrs/README.md
+++ b/cqrs/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: CQRS
-category: Architectural
+folder: cqrs
+permalink: /patterns/cqrs/
+categories: Architectural
 language: en
 tags:
  - Performance
--- a/cqrs/pom.xml
+++ b/cqrs/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,43 +23,41 @@
    THE SOFTWARE.

 -->
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>cqrs</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.hibernate</groupId>
-			<artifactId>hibernate-core</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.sun.xml.bind</groupId>
-			<artifactId>jaxb-impl</artifactId>
-			<version>2.1.17</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>javax.xml.bind</groupId>
-			<artifactId>jaxb-api</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>cqrs</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.h2database</groupId>
+      <artifactId>h2</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.hibernate</groupId>
+      <artifactId>hibernate-core</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.xml.bind</groupId>
+      <artifactId>jaxb-impl</artifactId>
+      <version>2.1.17</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>javax.xml.bind</groupId>
+      <artifactId>jaxb-api</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
@ -78,5 +76,4 @@
      </plugin>
    </plugins>
  </build>
-
 </project>
--- a/cqrs/src/main/resources/hibernate.cfg.xml
+++ b/cqrs/src/main/resources/hibernate.cfg.xml
@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,17 +23,15 @@
    THE SOFTWARE.

 -->
-<!DOCTYPE hibernate-configuration SYSTEM
-"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
-
+<!DOCTYPE hibernate-configuration SYSTEM "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
 <hibernate-configuration>
-    <session-factory>
-        <property name="dialect">org.hibernate.dialect.H2Dialect</property>
-        <property name="connection.driver_class">org.h2.Driver</property>
-        <property name="connection.url">jdbc:h2:mem:test</property>
-        <property name="connection.username">sa</property>
-        <property name="hbm2ddl.auto">create</property>
-        <mapping class="com.iluwatar.cqrs.domain.model.Author" />
-        <mapping class="com.iluwatar.cqrs.domain.model.Book" />
-    </session-factory>
-</hibernate-configuration>
+  <session-factory>
+    <property name="dialect">org.hibernate.dialect.H2Dialect</property>
+    <property name="connection.driver_class">org.h2.Driver</property>
+    <property name="connection.url">jdbc:h2:mem:test</property>
+    <property name="connection.username">sa</property>
+    <property name="hbm2ddl.auto">create</property>
+    <mapping class="com.iluwatar.cqrs.domain.model.Author" />
+    <mapping class="com.iluwatar.cqrs.domain.model.Book" />
+  </session-factory>
+</hibernate-configuration>
--- a/cqrs/src/main/resources/logback.xml
+++ b/cqrs/src/main/resources/logback.xml
@ -24,14 +24,12 @@

 -->
 <configuration>
-    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
-        <encoder>
-            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
-            </pattern>
-        </encoder>
-    </appender>
-
-    <root level="info">
-        <appender-ref ref="STDOUT" />
-    </root>
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+    </encoder>
+  </appender>
+  <root level="info">
+    <appender-ref ref="STDOUT" />
+  </root>
 </configuration>
--- a/cqrs/src/test/resources/hibernate.cfg.xml
+++ b/cqrs/src/test/resources/hibernate.cfg.xml
@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,17 +23,15 @@
    THE SOFTWARE.

 -->
-<!DOCTYPE hibernate-configuration SYSTEM
-"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
-
+<!DOCTYPE hibernate-configuration SYSTEM "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
 <hibernate-configuration>
-    <session-factory>
-        <property name="dialect">org.hibernate.dialect.H2Dialect</property>
-        <property name="connection.driver_class">org.h2.Driver</property>
-        <property name="connection.url">jdbc:h2:mem:test</property>
-        <property name="connection.username">sa</property>
-        <property name="hbm2ddl.auto">create</property>
-        <mapping class="com.iluwatar.cqrs.domain.model.Author" />
-        <mapping class="com.iluwatar.cqrs.domain.model.Book" />
-    </session-factory>
-</hibernate-configuration>
+  <session-factory>
+    <property name="dialect">org.hibernate.dialect.H2Dialect</property>
+    <property name="connection.driver_class">org.h2.Driver</property>
+    <property name="connection.url">jdbc:h2:mem:test</property>
+    <property name="connection.username">sa</property>
+    <property name="hbm2ddl.auto">create</property>
+    <mapping class="com.iluwatar.cqrs.domain.model.Author" />
+    <mapping class="com.iluwatar.cqrs.domain.model.Book" />
+  </session-factory>
+</hibernate-configuration>
--- a/cqrs/src/test/resources/logback.xml
+++ b/cqrs/src/test/resources/logback.xml
@ -24,14 +24,12 @@

 -->
 <configuration>
-    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
-        <encoder>
-            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
-            </pattern>
-        </encoder>
-    </appender>
-
-    <root level="info">
-        <appender-ref ref="STDOUT" />
-    </root>
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+    </encoder>
+  </appender>
+  <root level="info">
+    <appender-ref ref="STDOUT" />
+  </root>
 </configuration>
--- a/dao/README.md
+++ b/dao/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Data Access Object
-category: Architectural
+folder: dao
+permalink: /patterns/dao/
+categories: Architectural
 language: en
 tags:
 - Data access
--- a/dao/pom.xml
+++ b/dao/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,17 +23,14 @@
    THE SOFTWARE.

 -->
-<project
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-    xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>dao</artifactId>
-
  <dependencies>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
--- a/data-bus/README.md
+++ b/data-bus/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Data Bus
-category: Architectural
+folder: data-bus
+permalink: /patterns/data-bus/
+categories: Architectural
 language: en
 tags:
 - Decoupling
--- a/data-bus/pom.xml
+++ b/data-bus/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,45 +23,43 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-    <modelVersion>4.0.0</modelVersion>
-    <parent>
-        <groupId>com.iluwatar</groupId>
-        <artifactId>java-design-patterns</artifactId>
-        <version>1.25.0-SNAPSHOT</version>
-    </parent>
-    <artifactId>data-bus</artifactId>
-    <dependencies>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <configuration>
-                            <archive>
-                                <manifest>
-                                    <mainClass>com.iluwatar.databus.App</mainClass>
-                                </manifest>
-                            </archive>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>data-bus</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.databus.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/data-locality/README.md
+++ b/data-locality/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Data Locality
-category: Behavioral
+folder: data-locality
+permalink: /patterns/data-locality/
+categories: Behavioral
 language: en
 tags:
 - Game programming
--- a/data-locality/pom.xml
+++ b/data-locality/pom.xml
@ -23,17 +23,14 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>data-locality</artifactId>
-
  <dependencies>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
@ -60,4 +57,4 @@
      </plugin>
    </plugins>
  </build>
-</project>
+</project>
--- a/data-mapper/README.md
+++ b/data-mapper/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Data Mapper
-category: Architectural
+folder: data-mapper
+permalink: /patterns/data-mapper/
+categories: Architectural
 language: en
 tags:
 - Decoupling
--- a/data-mapper/pom.xml
+++ b/data-mapper/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,38 +23,38 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.iluwatar</groupId>
-		<artifactId>java-design-patterns</artifactId>
-		<version>1.25.0-SNAPSHOT</version>
-	</parent>
-	<artifactId>data-mapper</artifactId>
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<configuration>
-							<archive>
-								<manifest>
-									<mainClass>com.iluwatar.datamapper.App</mainClass>
-								</manifest>
-							</archive>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>data-mapper</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.datamapper.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/data-transfer-object/README.md
+++ b/data-transfer-object/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Data Transfer Object
-category: Architectural
+folder: data-transfer-object
+permalink: /patterns/data-transfer-object/
+categories: Architectural
 language: en
 tags:
 - Performance
--- a/data-transfer-object/pom.xml
+++ b/data-transfer-object/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,38 +23,38 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-    <modelVersion>4.0.0</modelVersion>
-    <parent>
-        <groupId>com.iluwatar</groupId>
-        <artifactId>java-design-patterns</artifactId>
-        <version>1.25.0-SNAPSHOT</version>
-    </parent>
-    <artifactId>data-transfer-object</artifactId>
-    <dependencies>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <configuration>
-                            <archive>
-                                <manifest>
-                                    <mainClass>com.iluwatar.datatransfer.App</mainClass>
-                                </manifest>
-                            </archive>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.25.0</version>
+  </parent>
+  <artifactId>data-transfer-object</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.datatransfer.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
--- a/decorator/README.md
+++ b/decorator/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Decorator
-category: Structural
+folder: decorator
+permalink: /patterns/decorator/
+categories: Structural
 language: en
 tags:
 - Gang of Four
--- a/decorator/pom.xml
+++ b/decorator/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,13 +23,12 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>decorator</artifactId>
  <dependencies>
--- a/delegation/README.md
+++ b/delegation/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Delegation
-category: Structural
+folder: delegation
+permalink: /patterns/delegation/
+categories: Structural
 language: en
 tags:
 - Decoupling
--- a/delegation/pom.xml
+++ b/delegation/pom.xml
@ -23,18 +23,14 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <parent>
    <artifactId>java-design-patterns</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
-
  <artifactId>delegation</artifactId>
-
  <dependencies>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
--- a/dependency-injection/README.md
+++ b/dependency-injection/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Dependency Injection
-category: Creational
+folder: dependency-injection
+permalink: /patterns/dependency-injection/
+categories: Creational
 language: en
 tags:
 - Decoupling
--- a/dependency-injection/pom.xml
+++ b/dependency-injection/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,13 +23,12 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>dependency-injection</artifactId>
  <dependencies>
--- a/dirty-flag/README.md
+++ b/dirty-flag/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Dirty Flag
-category: Behavioral
+folder: dirty-flag
+permalink: /patterns/dirty-flag/
+categories: Behavioral
 language: en
 tags:
 - Game programming
--- a/dirty-flag/pom.xml
+++ b/dirty-flag/pom.xml
@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,16 +23,15 @@
    THE SOFTWARE.

 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>dirty-flag</artifactId>
-  <version>1.25.0-SNAPSHOT</version>
+  <version>1.25.0</version>
  <name>dirty-flag</name>
  <url>http://maven.apache.org</url>
  <properties>
--- a/domain-model/README.md
+++ b/domain-model/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Domain Model
-category: Architectural
+folder: domain-model
+permalink: /patterns/domain-model/
+categories: Architectural
 language: en
 tags:
 - Domain
--- a/domain-model/pom.xml
+++ b/domain-model/pom.xml
@ -23,56 +23,51 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <parent>
-        <artifactId>java-design-patterns</artifactId>
-        <groupId>com.iluwatar</groupId>
-        <version>1.25.0-SNAPSHOT</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-
-    <artifactId>domain-model</artifactId>
-
-    <dependencies>
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.joda</groupId>
-            <artifactId>joda-money</artifactId>
-            <version>1.0.1</version>
-        </dependency>
-    </dependencies>
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <configuration>
-                            <archive>
-                                <manifest>
-                                    <mainClass>com.iluwatar.domainmodel.App</mainClass>
-                                </manifest>
-                            </archive>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
-</project>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>domain-model</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>com.h2database</groupId>
+      <artifactId>h2</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.joda</groupId>
+      <artifactId>joda-money</artifactId>
+      <version>1.0.1</version>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.domainmodel.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
--- a/double-buffer/README.md
+++ b/double-buffer/README.md
@ -1,6 +1,9 @@
 ---  
+layout: pattern  
 title: Double Buffer 
-category: Behavioral
+folder:  double-buffer  
+permalink: /patterns/double-buffer/  
+categories: Behavioral
 language: en
 tags:  
 - Performance
--- a/double-buffer/pom.xml
+++ b/double-buffer/pom.xml
@ -23,47 +23,42 @@
    THE SOFTWARE.

 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <parent>
-        <artifactId>java-design-patterns</artifactId>
-        <groupId>com.iluwatar</groupId>
-        <version>1.25.0-SNAPSHOT</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-
-    <artifactId>double-buffer</artifactId>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <configuration>
-                            <archive>
-                                <manifest>
-                                    <mainClass>com.iluwatar.doublebuffer.App</mainClass>
-                                </manifest>
-                            </archive>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
-</project>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <parent>
+    <artifactId>java-design-patterns</artifactId>
+    <groupId>com.iluwatar</groupId>
+    <version>1.25.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>double-buffer</artifactId>
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>com.iluwatar.doublebuffer.App</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
--- a/double-checked-locking/README.md
+++ b/double-checked-locking/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Double Checked Locking
-category: Idiom
+folder: double-checked-locking
+permalink: /patterns/double-checked-locking/
+categories: Idiom
 language: en
 tags:
 - Performance
--- a/double-checked-locking/pom.xml
+++ b/double-checked-locking/pom.xml
@ -27,7 +27,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.25.0</version>
  </parent>
  <artifactId>double-checked-locking</artifactId>
  <dependencies>
--- a/double-checked-locking/src/main/resources/logback.xml
+++ b/double-checked-locking/src/main/resources/logback.xml
@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--

    The MIT License
@ -23,30 +24,26 @@

 -->
 <configuration>
-    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
-        <file>double-checked-locking.log</file>
-        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
-            <fileNamePattern>double-checked-locking-%d.log</fileNamePattern>
-            <maxHistory>5</maxHistory>
-        </rollingPolicy>
-        <encoder>
-            <pattern>%-5p [%d{ISO8601,UTC}] %c: %m%n</pattern>
-        </encoder>
-    </appender>
-
-    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
-        <encoder>
-            <pattern>%-5p [%d{ISO8601,UTC}] %c: %m%n</pattern>
-        </encoder>
-    </appender>
-
-    <logger name="com.iluwatar" additivity="false">
-        <level value="DEBUG"/>
-        <appender-ref ref="FILE"/>
-    </logger>
-
-    <root level="WARN">
-        <appender-ref ref="STDOUT"/>
-    </root>
-
+  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+    <file>double-checked-locking.log</file>
+    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+      <fileNamePattern>double-checked-locking-%d.log</fileNamePattern>
+      <maxHistory>5</maxHistory>
+    </rollingPolicy>
+    <encoder>
+      <pattern>%-5p [%d{ISO8601,UTC}] %c: %m%n</pattern>
+    </encoder>
+  </appender>
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%-5p [%d{ISO8601,UTC}] %c: %m%n</pattern>
+    </encoder>
+  </appender>
+  <logger name="com.iluwatar" additivity="false">
+    <level value="DEBUG" />
+    <appender-ref ref="FILE" />
+  </logger>
+  <root level="WARN">
+    <appender-ref ref="STDOUT" />
+  </root>
 </configuration>
--- a/double-dispatch/README.md
+++ b/double-dispatch/README.md
@ -1,6 +1,9 @@
 ---
+layout: pattern
 title: Double Dispatch
-category: Idiom
+folder: double-dispatch
+permalink: /patterns/double-dispatch/
+categories: Idiom
 language: en
 tags:
 - Extensibility
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Ilkka Seppälä	925755fa35	Reach milestone 1.25.0	2021-11-11 21:47:49 +02:00
Zhang WH	89b2072131	fix: use double check to fix concurrent problem (#1909 ) Co-authored-by: zhangwenhe <zhangwh@ehualu.com>	2021-11-11 19:46:24 +02:00
allcontributors[bot]	0a7b524bd1	docs: add harshalkh as a contributor for code (#1900 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-31 09:12:05 +02:00
Harshal	36c6ce1df7	sonar fix: Update App.java (#1896 ) * Update App.java Sonar issue fix * Update App.java	2021-10-31 09:10:58 +02:00
Harshal	22ddd57146	sonar fix: Update App.java (#1898 )	2021-10-31 09:08:49 +02:00
Subhrodip Mohanta	72bb189dc0	CI: Update Workflows (#1879 ) * Update Workflows #1875 * Updated requested changes	2021-10-27 21:44:00 +03:00
Fiordy	bee1283371	docs: updated example with lombok as per code (#1891 )	2021-10-24 17:27:24 +03:00
allcontributors[bot]	785cbf42b7	docs: add Fiordy as a contributor for doc (#1890 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-24 09:51:18 +03:00
Fiordy	c51eb66c89	docs: abstract-factory - readme - corrected code description as per real file (#1887 )	2021-10-24 09:49:52 +03:00
allcontributors[bot]	1eb74203fc	docs: add uh-zz as a contributor for translation (#1889 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-24 09:41:49 +03:00
Reo Uehara	c6803f920d	translation: Add Japanese README (#1885 )	2021-10-24 09:40:05 +03:00
Anum Amin	b80ac39e1f	docs: Add tutorial link for Acyclic Visitor pattern (#525 ) (#1884 )	2021-10-24 09:23:12 +03:00
Anum Amin	da6d20e997	docs: Add tutorial links for Builder pattern (#525 ) (#1883 )	2021-10-24 09:11:34 +03:00
Anum Amin	5dbb176a33	docs: Add tutorial links for Adapter pattern (#525 ) (#1882 )	2021-10-24 09:09:06 +03:00
Anum Amin	e3c3b02efd	docs: Add tutorial links for Active object pattern (#525 ) (#1881 )	2021-10-24 09:06:15 +03:00
allcontributors[bot]	988c478ad4	docs: add blueberry404 as a contributor for doc (#1888 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-24 09:04:52 +03:00
Anum Amin	221daf5d74	docs: Add tutorial links for Visitor pattern (#525 ) (#1880 )	2021-10-24 09:03:29 +03:00
allcontributors[bot]	90b1b922e1	docs: add ManviGoel26 as a contributor for doc (#1878 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-21 21:15:45 +03:00
Manvi Goel	bd71bc1311	docs: add explanation for twin pattern (#1869 ) * add explanation for twin pattern * updated explanation of twin pattern	2021-10-21 21:14:10 +03:00
allcontributors[bot]	54d19d4c87	docs: add carldea as a contributor for code (#1876 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] * Removed Conflicts Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com> Co-authored-by: Subhrodip Mohanta <contact@subho.xyz>	2021-10-21 23:39:05 +05:30
allcontributors[bot]	464b166fa3	docs: add Mozartuss as a contributor for translation (#1877 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-21 20:40:58 +03:00
Mozartus	78abdb4e13	Fix typo, grammer and links (#1874 )	2021-10-21 20:39:34 +03:00
Carl Dea	d1c26f9d84	task: update GHA JDK build vendor from adopt build to Zulu (#1868 ) * Using the latest LTS and fixed (major) versions of the OpenJDK. Signed-off-by: Carl Dea <carldea@gmail.com> * Using the latest LTS and fixed (major) versions of the OpenJDK. Removed 17 & 18-ea releases. Signed-off-by: Carl Dea <carldea@gmail.com> Co-authored-by: Subhrodip Mohanta <subhrodipmohanta@gmail.com>	2021-10-21 21:00:45 +05:30
Mozartus	ba51a49802	translation: Add a German README (#1872 ) * Add German Readme * Add german readme	2021-10-20 21:29:15 +03:00
Victor	73eca64b9f	refactoring: Issue-1694: Improve caching pattern code quality (#1810 ) * Changed database implementation. Removed static objects. * Fix Logs * Fix 40 errors from checkstyle plugin run. 139 left)) * Fix CacheStore errors from checkstyle plugin 107 left * Fix last errors in checkstyle. * Fix sonar issues * Fix issues in VALIDATE phase * Fix Bug with mongo connection. Used "Try with resources" * Add test * Added docker-compose for mongo db. MongoDb db work fixed. * Provided missing tests * Comments to start Application with mongo. * Fixes according PR comments. Mainly Readme edits. * Remove duplicated imports	2021-10-20 20:44:01 +03:00
Subhrodip Mohanta	8aac45ab69	maintenance: Update Spacing of XML (#1866 ) PR Set 4 of 4	2021-10-19 20:56:44 +03:00
Subhrodip Mohanta	2c93c81cf9	maintenance: Update Spacing of XML (#1865 ) PR Set 3 of 4	2021-10-19 20:54:24 +03:00
Subhrodip Mohanta	656b441e29	maintenance: Update Spacing of XML (#1864 ) PR Set 2 of 4	2021-10-19 20:51:43 +03:00
Subhrodip Mohanta	37d9ff3342	maintenance: Update Spacing of XML (#1863 ) PR Set 1 of 4	2021-10-19 20:49:46 +03:00
Subhrodip Mohanta	d9dae3ae6a	doc fix: Recalculate already added rows. (#1862 )	2021-10-19 20:06:38 +03:00
Subhrodip Mohanta	1354bf0f55	docs: Update README.md to accommodate 7 contributors per row (#1854 ) * Update per line Contributor to 7 from 4 This will be helpful to reduce page size and shorten the length of the README, which is our landing page in GitHub and help us make it clutter free * Update the Readme to accommodate upto 7 rows	2021-10-16 20:19:25 +03:00
allcontributors[bot]	dc7c99c32f	docs: add Dev-AliGhasemi as a contributor for code (#1861 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-16 20:11:23 +03:00
Ali Ghasemi	c2786e5dc4	add monitor design pattern (#1640 ) * add monitor design pattern . * add extra line and change compiler version to 11 in pom.xml. * encapsulate getBalance method . * update puml file . * export uml as png . * duplicate codes eliminated . * update tag * change the format of pom.xml * using logger to print * change AtomicRefrence to type inference var * explanations added ! * Update monitor/README.md Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update monitor/README.md Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update monitor/src/main/java/com/iluwatar/monitor/Main.java Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update monitor/src/main/java/com/iluwatar/monitor/Main.java Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update monitor/src/main/java/com/iluwatar/monitor/Main.java Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update monitor/src/main/java/com/iluwatar/monitor/Main.java Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * e.printStackTrace have changed to logger to prints standard output (STD OUT) . * add programmatic example . * Delete mvnw * mvnw.cmd deleted . * added mvnw from master * AddUnitTest * Add language to readme.md Co-authored-by: Subhrodip Mohanta <subhrodipmohanta@gmail.com> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> Co-authored-by: Subhrodip Mohanta <subhromo@cisco.com> Co-authored-by: Subhrodip Mohanta <contact@subho.xyz>	2021-10-16 20:08:53 +03:00
allcontributors[bot]	a1f3c6fe20	docs: add JCarlosR as a contributor for translation (#1857 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-15 20:27:23 +03:00
JCarlos	0ad44ced24	docs: Fix typos spanish readme and factory (#1834 ) * Fix typos for Spanish README * Fix typos in the factory example	2021-10-15 20:24:49 +03:00
allcontributors[bot]	4c5c0fd63e	docs: add sims-keshri as a contributor for code (#1853 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-10-13 13:17:48 +05:30
Simran Keshri	5a644f1092	refactoring: Critical Sonar Issues (#1833 ) * Resolve Sonar Code Smell: Define a constant instead of duplicating this literal 'Space rocket <' 4 times. * Resolve Sonar Critical Code Smell: Define a constant instead of duplicating this literal 'Error connecting to MongoDB' 4 times. * Fix checkstyle violation. * Resolve Sonar Critical Code Smell: Define a constant instead of duplicating this literal 'LITERAL 0' 4 times. Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-10-13 13:15:22 +05:30
Ilkka Seppälä	cab9048e06	docs: fixes for yaml frontmatter (#1851 ) Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-10-13 12:59:55 +05:30