diff --git a/abstract-document/pom.xml b/abstract-document/pom.xml
index ed7a6a575..63ab70c9c 100644
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index 6a9b0f826..997d9a2f7 100644
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index 4816aca5a..03a453fb7 100644
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index bff8cc233..ee447b35c 100644
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index 80f788f48..4c67ff879 100644
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index 410473cdc..796e58e05 100644
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index 95eb5929d..ddd55c55d 100644
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index b556f0c23..573ebe16f 100644
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index add3ac7f3..a741b70dd 100644
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index 67bb4846e..897895096 100644
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index 021a059e7..30b0eea9e 100644
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index fb3bf449b..d3dc868ba 100644
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   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>domain-model</artifactId>
diff --git a/double-buffer/pom.xml b/double-buffer/pom.xml
index 1b8f26dcc..5867eda41 100644
--- a/double-buffer/pom.xml
+++ b/double-buffer/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>double-buffer</artifactId>
diff --git a/double-checked-locking/pom.xml b/double-checked-locking/pom.xml
index 429db879d..1263f79f8 100644
--- 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>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>double-checked-locking</artifactId>
   <dependencies>
diff --git a/double-dispatch/pom.xml b/double-dispatch/pom.xml
index cbece650a..d3d15cbfd 100644
--- a/double-dispatch/pom.xml
+++ b/double-dispatch/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>double-dispatch</artifactId>
   <dependencies>
diff --git a/eip-aggregator/pom.xml b/eip-aggregator/pom.xml
index d837fc41c..a4aaa751c 100644
--- a/eip-aggregator/pom.xml
+++ b/eip-aggregator/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <dependencies>
     <dependency>
diff --git a/eip-message-channel/pom.xml b/eip-message-channel/pom.xml
index 0581fa448..00cc08d04 100644
--- a/eip-message-channel/pom.xml
+++ b/eip-message-channel/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>eip-message-channel</artifactId>
   <dependencies>
diff --git a/eip-publish-subscribe/pom.xml b/eip-publish-subscribe/pom.xml
index 8a160dd51..dde4440e5 100644
--- a/eip-publish-subscribe/pom.xml
+++ b/eip-publish-subscribe/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>eip-publish-subscribe</artifactId>
   <dependencies>
diff --git a/eip-splitter/pom.xml b/eip-splitter/pom.xml
index 3a8c3df5a..fa2e7d910 100644
--- a/eip-splitter/pom.xml
+++ b/eip-splitter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <dependencies>
     <dependency>
diff --git a/eip-wire-tap/pom.xml b/eip-wire-tap/pom.xml
index 9e5bab7b3..853b2a2bd 100644
--- a/eip-wire-tap/pom.xml
+++ b/eip-wire-tap/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <dependencies>
     <dependency>
diff --git a/event-aggregator/pom.xml b/event-aggregator/pom.xml
index 664739d26..656fa23c1 100644
--- a/event-aggregator/pom.xml
+++ b/event-aggregator/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>event-aggregator</artifactId>
   <dependencies>
diff --git a/event-asynchronous/pom.xml b/event-asynchronous/pom.xml
index 336899825..08c0cd219 100644
--- a/event-asynchronous/pom.xml
+++ b/event-asynchronous/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>event-asynchronous</artifactId>
   <dependencies>
diff --git a/event-driven-architecture/pom.xml b/event-driven-architecture/pom.xml
index d6fdaaa33..412543e9c 100644
--- a/event-driven-architecture/pom.xml
+++ b/event-driven-architecture/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>event-driven-architecture</artifactId>
   <dependencies>
diff --git a/event-queue/pom.xml b/event-queue/pom.xml
index 30dbd1371..c2952c705 100644
--- a/event-queue/pom.xml
+++ b/event-queue/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>event-queue</artifactId>
   <dependencies>
diff --git a/event-sourcing/pom.xml b/event-sourcing/pom.xml
index 5f28a9fd8..3598a91bd 100644
--- a/event-sourcing/pom.xml
+++ b/event-sourcing/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>event-sourcing</artifactId>
   <dependencies>
diff --git a/execute-around/pom.xml b/execute-around/pom.xml
index fcd037d0e..db8aed60c 100644
--- a/execute-around/pom.xml
+++ b/execute-around/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>execute-around</artifactId>
   <dependencies>
diff --git a/extension-objects/pom.xml b/extension-objects/pom.xml
index 1e350d55a..15ef79273 100644
--- a/extension-objects/pom.xml
+++ b/extension-objects/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>extension-objects</artifactId>
diff --git a/facade/pom.xml b/facade/pom.xml
index 228462565..39be9cb95 100644
--- a/facade/pom.xml
+++ b/facade/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>facade</artifactId>
   <dependencies>
diff --git a/factory-kit/pom.xml b/factory-kit/pom.xml
index e3ca90a4a..4d064f501 100644
--- a/factory-kit/pom.xml
+++ b/factory-kit/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>factory-kit</artifactId>
   <dependencies>
diff --git a/factory-method/pom.xml b/factory-method/pom.xml
index 255a23276..ddfc0c086 100644
--- a/factory-method/pom.xml
+++ b/factory-method/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>factory-method</artifactId>
   <dependencies>
diff --git a/factory/pom.xml b/factory/pom.xml
index 6ac1c7999..ca11ff529 100644
--- a/factory/pom.xml
+++ b/factory/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>factory</artifactId>
   <dependencies>
diff --git a/fanout-fanin/pom.xml b/fanout-fanin/pom.xml
index 1fda42e67..11ce56178 100644
--- a/fanout-fanin/pom.xml
+++ b/fanout-fanin/pom.xml
@@ -31,7 +31,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>fanout-fanin</artifactId>
diff --git a/feature-toggle/pom.xml b/feature-toggle/pom.xml
index 12762a820..c728bef86 100644
--- a/feature-toggle/pom.xml
+++ b/feature-toggle/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>feature-toggle</artifactId>
diff --git a/filterer/pom.xml b/filterer/pom.xml
index b3c1980f3..38f016cc7 100644
--- a/filterer/pom.xml
+++ b/filterer/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>filterer</artifactId>
diff --git a/fluentinterface/pom.xml b/fluentinterface/pom.xml
index 93887a1c0..667661d9b 100644
--- a/fluentinterface/pom.xml
+++ b/fluentinterface/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>fluentinterface</artifactId>
diff --git a/flux/pom.xml b/flux/pom.xml
index dc484b09a..85be69e6c 100644
--- a/flux/pom.xml
+++ b/flux/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>flux</artifactId>
   <dependencies>
diff --git a/flyweight/pom.xml b/flyweight/pom.xml
index 4822d0e69..a0edc709d 100644
--- a/flyweight/pom.xml
+++ b/flyweight/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>flyweight</artifactId>
   <dependencies>
diff --git a/front-controller/pom.xml b/front-controller/pom.xml
index 721094ea4..2931da9f5 100644
--- a/front-controller/pom.xml
+++ b/front-controller/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>front-controller</artifactId>
   <dependencies>
diff --git a/game-loop/pom.xml b/game-loop/pom.xml
index 5e2689be6..c9c104d24 100644
--- a/game-loop/pom.xml
+++ b/game-loop/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>game-loop</artifactId>
diff --git a/guarded-suspension/pom.xml b/guarded-suspension/pom.xml
index 015a22245..775a9623b 100644
--- a/guarded-suspension/pom.xml
+++ b/guarded-suspension/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <packaging>jar</packaging>
   <artifactId>guarded-suspension</artifactId>
diff --git a/half-sync-half-async/pom.xml b/half-sync-half-async/pom.xml
index ffe36aa35..e4154d61b 100644
--- a/half-sync-half-async/pom.xml
+++ b/half-sync-half-async/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>half-sync-half-async</artifactId>
   <dependencies>
diff --git a/hexagonal/pom.xml b/hexagonal/pom.xml
index 2831e473d..0723d67ad 100644
--- a/hexagonal/pom.xml
+++ b/hexagonal/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>hexagonal</artifactId>
   <dependencies>
diff --git a/intercepting-filter/pom.xml b/intercepting-filter/pom.xml
index f7f88ca07..fb1a44e2c 100644
--- a/intercepting-filter/pom.xml
+++ b/intercepting-filter/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>intercepting-filter</artifactId>
   <dependencies>
diff --git a/interpreter/pom.xml b/interpreter/pom.xml
index 05ece7cd3..0c5abdab1 100644
--- a/interpreter/pom.xml
+++ b/interpreter/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>interpreter</artifactId>
   <dependencies>
diff --git a/iterator/pom.xml b/iterator/pom.xml
index deb10e820..7980cdc59 100644
--- a/iterator/pom.xml
+++ b/iterator/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>iterator</artifactId>
   <dependencies>
diff --git a/layers/pom.xml b/layers/pom.xml
index 9e347be84..65a03187d 100644
--- a/layers/pom.xml
+++ b/layers/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <groupId>com.iluwatar.layers</groupId>
   <artifactId>layers</artifactId>
diff --git a/lazy-loading/pom.xml b/lazy-loading/pom.xml
index e2326d6ce..3b99a008b 100644
--- a/lazy-loading/pom.xml
+++ b/lazy-loading/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>lazy-loading</artifactId>
   <dependencies>
diff --git a/leader-election/pom.xml b/leader-election/pom.xml
index cc839efba..377c96c86 100644
--- a/leader-election/pom.xml
+++ b/leader-election/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>leader-election</artifactId>
   <dependencies>
diff --git a/leader-followers/pom.xml b/leader-followers/pom.xml
index 8953976fb..2b2fb5ca4 100644
--- a/leader-followers/pom.xml
+++ b/leader-followers/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>leader-followers</artifactId>
   <dependencies>
diff --git a/leader-followers/src/main/java/com/iluwatar/leaderfollowers/Worker.java b/leader-followers/src/main/java/com/iluwatar/leaderfollowers/Worker.java
index 6c7caed24..21326bb0a 100644
--- a/leader-followers/src/main/java/com/iluwatar/leaderfollowers/Worker.java
+++ b/leader-followers/src/main/java/com/iluwatar/leaderfollowers/Worker.java
@@ -57,9 +57,11 @@ public class Worker implements Runnable {
       try {
         if (workCenter.getLeader() != null && !workCenter.getLeader().equals(this)) {
           synchronized (workCenter) {
-            workCenter.wait();
+            if (workCenter.getLeader() != null && !workCenter.getLeader().equals(this)) {
+              workCenter.wait();
+              continue;
+            }
           }
-          continue;
         }
         final Task task = taskSet.getTask();
         synchronized (workCenter) {
diff --git a/lockable-object/pom.xml b/lockable-object/pom.xml
index 74ad643ee..d9ce890ff 100644
--- a/lockable-object/pom.xml
+++ b/lockable-object/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>lockable-object</artifactId>
   <dependencies>
diff --git a/marker/pom.xml b/marker/pom.xml
index 88989be19..1e94ba6cf 100644
--- a/marker/pom.xml
+++ b/marker/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>marker</artifactId>
diff --git a/master-worker-pattern/pom.xml b/master-worker-pattern/pom.xml
index 400e7280c..74cfd4667 100644
--- a/master-worker-pattern/pom.xml
+++ b/master-worker-pattern/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>master-worker-pattern</artifactId>
   <dependencies>
diff --git a/mediator/pom.xml b/mediator/pom.xml
index 4ee363bdd..21a98c5d5 100644
--- a/mediator/pom.xml
+++ b/mediator/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>mediator</artifactId>
   <dependencies>
diff --git a/memento/pom.xml b/memento/pom.xml
index 693123971..54e3b915a 100644
--- a/memento/pom.xml
+++ b/memento/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>memento</artifactId>
   <dependencies>
diff --git a/model-view-controller/pom.xml b/model-view-controller/pom.xml
index 3c86fb807..2a6c65ee8 100644
--- a/model-view-controller/pom.xml
+++ b/model-view-controller/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>model-view-controller</artifactId>
   <dependencies>
diff --git a/model-view-presenter/pom.xml b/model-view-presenter/pom.xml
index 03188968b..4abaade2c 100644
--- a/model-view-presenter/pom.xml
+++ b/model-view-presenter/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>model-view-presenter</artifactId>
   <name>model-view-presenter</name>
diff --git a/model-view-viewmodel/pom.xml b/model-view-viewmodel/pom.xml
index b5522ff87..62ed67de2 100644
--- a/model-view-viewmodel/pom.xml
+++ b/model-view-viewmodel/pom.xml
@@ -32,11 +32,11 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <groupId>com.iluwatar</groupId>
   <artifactId>model-view-viewmodel</artifactId>
-  <version>1.25.0-SNAPSHOT</version>
+  <version>1.26.0-SNAPSHOT</version>
   <properties>
     <zk.version>9.0.0</zk.version>
     <guava.version>19.0</guava.version>
diff --git a/module/pom.xml b/module/pom.xml
index 7a7bb39ec..6d63dda27 100644
--- a/module/pom.xml
+++ b/module/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>module</artifactId>
   <dependencies>
diff --git a/monad/pom.xml b/monad/pom.xml
index 47661c714..c034fb960 100644
--- a/monad/pom.xml
+++ b/monad/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>monad</artifactId>
   <dependencies>
diff --git a/monostate/pom.xml b/monostate/pom.xml
index 57e291d69..407f14900 100644
--- a/monostate/pom.xml
+++ b/monostate/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
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   </parent>
   <artifactId>monostate</artifactId>
   <dependencies>
diff --git a/multiton/pom.xml b/multiton/pom.xml
index a980bd9a8..97b3ead70 100644
--- a/multiton/pom.xml
+++ b/multiton/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
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   </parent>
   <artifactId>multiton</artifactId>
   <dependencies>
diff --git a/mute-idiom/pom.xml b/mute-idiom/pom.xml
index 9a5879d53..22070204f 100644
--- a/mute-idiom/pom.xml
+++ b/mute-idiom/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>mute-idiom</artifactId>
   <dependencies>
diff --git a/naked-objects/dom/pom.xml b/naked-objects/dom/pom.xml
index df362e173..31fae8f52 100644
--- a/naked-objects/dom/pom.xml
+++ b/naked-objects/dom/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>naked-objects</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
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   <artifactId>naked-objects-dom</artifactId>
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diff --git a/naked-objects/fixture/pom.xml b/naked-objects/fixture/pom.xml
index 3e01abe54..35bb154f3 100644
--- a/naked-objects/fixture/pom.xml
+++ b/naked-objects/fixture/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>naked-objects</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>naked-objects-fixture</artifactId>
   <dependencies>
diff --git a/naked-objects/integtests/pom.xml b/naked-objects/integtests/pom.xml
index d23af04b7..ac3f83bc0 100644
--- a/naked-objects/integtests/pom.xml
+++ b/naked-objects/integtests/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>naked-objects</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>naked-objects-integtests</artifactId>
   <build>
diff --git a/naked-objects/pom.xml b/naked-objects/pom.xml
index cc5c9f277..9cf440c1f 100644
--- a/naked-objects/pom.xml
+++ b/naked-objects/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>naked-objects</artifactId>
   <packaging>pom</packaging>
@@ -314,17 +314,17 @@
       <dependency>
         <groupId>${project.groupId}</groupId>
         <artifactId>naked-objects-dom</artifactId>
-        <version>1.25.0-SNAPSHOT</version>
+        <version>1.26.0-SNAPSHOT</version>
       </dependency>
       <dependency>
         <groupId>${project.groupId}</groupId>
         <artifactId>naked-objects-fixture</artifactId>
-        <version>1.25.0-SNAPSHOT</version>
+        <version>1.26.0-SNAPSHOT</version>
       </dependency>
       <dependency>
         <groupId>${project.groupId}</groupId>
         <artifactId>naked-objects-webapp</artifactId>
-        <version>1.25.0-SNAPSHOT</version>
+        <version>1.26.0-SNAPSHOT</version>
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/naked-objects/webapp/pom.xml b/naked-objects/webapp/pom.xml
index 13b172c95..77cb73a9e 100644
--- a/naked-objects/webapp/pom.xml
+++ b/naked-objects/webapp/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>naked-objects</artifactId>
-    <version>1.25.0-SNAPSHOT</version>
+    <version>1.26.0-SNAPSHOT</version>
   </parent>
   <artifactId>naked-objects-webapp</artifactId>
   <description>This module runs both the Wicket viewer and the Restfulobjects viewer in a single webapp configured to run using the datanucleus object store.</description>
diff --git a/null-object/pom.xml b/null-object/pom.xml
index 56ac62414..64e69e7db 100644
--- a/null-object/pom.xml
+++ b/null-object/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>null-object</artifactId>
   <dependencies>
diff --git a/object-mother/pom.xml b/object-mother/pom.xml
index 8d0356a33..cf44cfb93 100644
--- a/object-mother/pom.xml
+++ b/object-mother/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>object-mother</artifactId>
   <dependencies>
diff --git a/object-pool/pom.xml b/object-pool/pom.xml
index f2b3722c1..cb98d8cb1 100644
--- a/object-pool/pom.xml
+++ b/object-pool/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>object-pool</artifactId>
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diff --git a/observer/pom.xml b/observer/pom.xml
index b66f5843d..755cc88d4 100644
--- a/observer/pom.xml
+++ b/observer/pom.xml
@@ -28,7 +28,7 @@
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     <artifactId>java-design-patterns</artifactId>
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   <artifactId>observer</artifactId>
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diff --git a/page-object/pom.xml b/page-object/pom.xml
index cfba5bcc7..5a6c25b67 100644
--- a/page-object/pom.xml
+++ b/page-object/pom.xml
@@ -45,7 +45,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>page-object</artifactId>
   <packaging>pom</packaging>
diff --git a/page-object/sample-application/pom.xml b/page-object/sample-application/pom.xml
index 52f15bc85..725be0bda 100644
--- a/page-object/sample-application/pom.xml
+++ b/page-object/sample-application/pom.xml
@@ -28,7 +28,7 @@
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-    <version>1.25.0-SNAPSHOT</version>
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   <artifactId>sample-application</artifactId>
 </project>
diff --git a/page-object/test-automation/pom.xml b/page-object/test-automation/pom.xml
index f0552b88d..31f7c19c8 100644
--- a/page-object/test-automation/pom.xml
+++ b/page-object/test-automation/pom.xml
@@ -28,7 +28,7 @@
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diff --git a/parameter-object/pom.xml b/parameter-object/pom.xml
index aed6b8c19..7e2fdf915 100644
--- a/parameter-object/pom.xml
+++ b/parameter-object/pom.xml
@@ -28,7 +28,7 @@
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     <artifactId>java-design-patterns</artifactId>
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diff --git a/partial-response/pom.xml b/partial-response/pom.xml
index 302f9ab75..2c1d34edb 100644
--- a/partial-response/pom.xml
+++ b/partial-response/pom.xml
@@ -27,7 +27,7 @@
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     <groupId>com.iluwatar</groupId>
-    <version>1.25.0-SNAPSHOT</version>
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   <modelVersion>4.0.0</modelVersion>
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diff --git a/pipeline/pom.xml b/pipeline/pom.xml
index 9b682e9bb..8e8213648 100644
--- a/pipeline/pom.xml
+++ b/pipeline/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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diff --git a/poison-pill/pom.xml b/poison-pill/pom.xml
index 592c3f652..08722b9ed 100644
--- a/poison-pill/pom.xml
+++ b/poison-pill/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>poison-pill</artifactId>
   <dependencies>
diff --git a/pom.xml b/pom.xml
index a724dc441..5c3634b95 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.iluwatar</groupId>
   <artifactId>java-design-patterns</artifactId>
-  <version>1.25.0-SNAPSHOT</version>
+  <version>1.26.0-SNAPSHOT</version>
   <packaging>pom</packaging>
   <inceptionYear>2014-2021</inceptionYear>
   <properties>
diff --git a/presentation/pom.xml b/presentation/pom.xml
index 00f114f07..64dc72255 100644
--- a/presentation/pom.xml
+++ b/presentation/pom.xml
@@ -28,7 +28,7 @@
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     <artifactId>java-design-patterns</artifactId>
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   <artifactId>presentation</artifactId>
   <dependencies>
diff --git a/priority-queue/pom.xml b/priority-queue/pom.xml
index a9daac934..c09abfc81 100644
--- a/priority-queue/pom.xml
+++ b/priority-queue/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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diff --git a/private-class-data/pom.xml b/private-class-data/pom.xml
index 25eb0caca..7bf80d59f 100644
--- a/private-class-data/pom.xml
+++ b/private-class-data/pom.xml
@@ -28,7 +28,7 @@
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     <artifactId>java-design-patterns</artifactId>
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diff --git a/producer-consumer/pom.xml b/producer-consumer/pom.xml
index bf0406d97..b8db23dcd 100644
--- a/producer-consumer/pom.xml
+++ b/producer-consumer/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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diff --git a/promise/pom.xml b/promise/pom.xml
index 3b6b15e88..d32ca3767 100644
--- a/promise/pom.xml
+++ b/promise/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>promise</artifactId>
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diff --git a/property/pom.xml b/property/pom.xml
index 923882bba..55a558564 100644
--- a/property/pom.xml
+++ b/property/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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diff --git a/prototype/pom.xml b/prototype/pom.xml
index d34ebf8ac..bbde8d5a3 100644
--- a/prototype/pom.xml
+++ b/prototype/pom.xml
@@ -28,7 +28,7 @@
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     <artifactId>java-design-patterns</artifactId>
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diff --git a/proxy/pom.xml b/proxy/pom.xml
index 0eda07136..1a5cb773d 100644
--- a/proxy/pom.xml
+++ b/proxy/pom.xml
@@ -28,7 +28,7 @@
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     <artifactId>java-design-patterns</artifactId>
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diff --git a/queue-load-leveling/pom.xml b/queue-load-leveling/pom.xml
index fa7b397c0..8949ae1da 100644
--- a/queue-load-leveling/pom.xml
+++ b/queue-load-leveling/pom.xml
@@ -28,7 +28,7 @@
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diff --git a/reactor/pom.xml b/reactor/pom.xml
index c0e98d0d3..c1b156e05 100644
--- a/reactor/pom.xml
+++ b/reactor/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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diff --git a/reader-writer-lock/pom.xml b/reader-writer-lock/pom.xml
index 5ff45c6b8..6245178fd 100644
--- a/reader-writer-lock/pom.xml
+++ b/reader-writer-lock/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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diff --git a/registry/pom.xml b/registry/pom.xml
index 0daea4277..445b9bfa8 100644
--- a/registry/pom.xml
+++ b/registry/pom.xml
@@ -28,7 +28,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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diff --git a/repository/pom.xml b/repository/pom.xml
index 2c1192a72..b73624f62 100644
--- a/repository/pom.xml
+++ b/repository/pom.xml
@@ -28,7 +28,7 @@
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diff --git a/resource-acquisition-is-initialization/pom.xml b/resource-acquisition-is-initialization/pom.xml
index ddf75a376..1fad8b5eb 100644
--- a/resource-acquisition-is-initialization/pom.xml
+++ b/resource-acquisition-is-initialization/pom.xml
@@ -28,7 +28,7 @@
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diff --git a/retry/pom.xml b/retry/pom.xml
index 4bd6a92d3..ce7613cde 100644
--- a/retry/pom.xml
+++ b/retry/pom.xml
@@ -28,7 +28,7 @@
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     <artifactId>java-design-patterns</artifactId>
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   <packaging>jar</packaging>
diff --git a/role-object/pom.xml b/role-object/pom.xml
index 263a1ffd0..095f66f89 100644
--- a/role-object/pom.xml
+++ b/role-object/pom.xml
@@ -28,7 +28,7 @@
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diff --git a/saga/pom.xml b/saga/pom.xml
index 249a22d67..8f8d0e905 100644
--- a/saga/pom.xml
+++ b/saga/pom.xml
@@ -28,7 +28,7 @@
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index e14f57337..0f079eb26 100644
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index a32a6736e..47dac1073 100644
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index 4867871aa..9b34c6d87 100644
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index c8269048d..bde99ff58 100644
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