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@ -23,6 +23,7 @@ A curated list of awesome Java frameworks, libraries and software.
- [Dependency Injection](#dependency-injection)
- [Development](#development)
- [Distributed Applications](#distributed-applications)
- [Distributed Transactions](#distributed-transactions)
- [Distribution](#distribution)
- [Document Processing](#document-processing)
- [Formal Verification](#formal-verification)
@ -79,22 +80,21 @@ A curated list of awesome Java frameworks, libraries and software.
*In existence since the beginning of time, and which people will continue using long after the hype has waned.*
* [Apache Ant](http://ant.apache.org/) - Build process management with XML.
* [Apache Hadoop](http://hadoop.apache.org/) - Storage and large-scale processing of data sets on clusters of commodity hardware.
* [Apache Ant](https://ant.apache.org/) - Build process management with XML.
* [Apache Hadoop](https://hadoop.apache.org/) - Storage and large-scale processing of data sets on clusters of commodity hardware.
* [Apache OpenNLP](https://opennlp.apache.org/) - Toolkit for common tasks like tokenization.
* [Apache Velocity](http://velocity.apache.org/) - A template engine for HTML pages, emails or source code generation.
* [Apache Velocity](https://velocity.apache.org/) - A template engine for HTML pages, emails or source code generation.
* [FreeMarker](http://freemarker.org/) - General templating engine with no heavyweight or opinionated dependencies.
* [GlassFish](https://glassfish.java.net/) - Application server and reference implementation for Java EE, sponsored by Oracle.
* [GlassFish](https://javaee.github.io/glassfish/) - Application server and reference implementation for Java EE, sponsored by Oracle.
* [GWT](http://www.gwtproject.org/) - Toolbox that includes a Java-to-JavaScript compiler for client-side code, XML parser, API for RPC, JUnit integration, internationalization support and widgets for the GUI.
* [HornetQ](http://hornetq.jboss.org/) - Clear, concise, modular and made for embedding.
* [Hudson](http://hudson-ci.org/) - Continuous integration server still in active development.
* [HornetQ](https://hornetq.jboss.org/) - Clear, concise, modular and made for embedding.
* [Java Modeling Language (JML)](http://www.eecs.ucf.edu/~leavens/JML/) - Behavioral interface specification language useful for specifying the behavior of code modules. It combines Eiffel's Design by Contract approach with the model-based specification approach of the Larch family of interface specification languages, with some elements of the refinement calculus. Used by several other verification tools.
* [JavaCC](https://javacc.org/) - Parser generator with syntactic lookahead.
* [JavaServer Faces](https://javaserverfaces.java.net/) - Oracle's open-source implementation of the JSF standard, Mojarra.
* [JavaServer Pages](https://jsp.java.net/) - Common templating for websites with custom tag libraries.
* [JavaServer Faces](https://javaee.github.io/javaserverfaces-spec/) - Oracle's open-source implementation of the JSF standard, Mojarra.
* [JavaServer Pages](https://javaee.github.io/javaee-jsp-api/) - Common templating for websites with custom tag libraries.
* [Launch4j](http://launch4j.sourceforge.net/) - Wraps JARs in lightweight and native Windows executables.
* [Quartz](https://github.com/quartz-scheduler/quartz) - Open-source job scheduler library with Apache 2.0 license.
* [RxJava](https://github.com/ReactiveX/RxJava) - Library for composing asynchronous and event-based programs using observable sequences from the JVM.
* [Trove](http://trove.starlight-systems.com/) - High-performance primitive collections.
## Bean Mapping
@ -102,7 +102,7 @@ A curated list of awesome Java frameworks, libraries and software.
*Frameworks that ease bean mapping.*
* [Dozer](https://github.com/DozerMapper/dozer/) - Mapper that copies data from one object to another using annotations and API or XML configuration.
* [JMapper](http://jmapper-framework.github.io/jmapper-core/) - Uses byte code manipulation for lightning-fast mapping. Supports annotations and API or XML configuration.
* [JMapper](https://jmapper-framework.github.io/jmapper-core/) - Uses byte code manipulation for lightning-fast mapping. Supports annotations and API or XML configuration.
* [MapStruct](https://github.com/mapstruct/mapstruct) - Code generator that simplifies mappings between different bean types, based on a convention-over-configuration approach.
* [ModelMapper](https://github.com/jhalterman/modelmapper) - Intelligent object mapping library that automatically maps objects to each other.
* [Orika](https://github.com/orika-mapper/orika) - JavaBean-mapping framework that recursively copies (among other capabilities) data from one object to another.
@ -112,19 +112,19 @@ A curated list of awesome Java frameworks, libraries and software.
*Tools that handle the build cycle and dependencies of an application.*
* [Apache Maven](http://maven.apache.org/) - Declarative build and dependency management that favors convention over configuration. It might be preferable to Apache Ant, which uses a rather procedural approach and can be difficult to maintain.
* [Bazel](http://bazel.io) - Tool from Google that builds code quickly and reliably.
* [Gradle](http://gradle.org/) - Incremental builds programmed via Groovy instead of declaring XML. Works well with Maven's dependency management.
* [Apache Maven](https://maven.apache.org/) - Declarative build and dependency management that favors convention over configuration. It might be preferable to Apache Ant, which uses a rather procedural approach and can be difficult to maintain.
* [Bazel](https://bazel.io) - Tool from Google that builds code quickly and reliably.
* [Gradle](https://gradle.org/) - Incremental builds programmed via Groovy instead of declaring XML. Works well with Maven's dependency management.
## Bytecode Manipulation
*Libraries to manipulate bytecode programmatically.*
* [ASM](http://asm.ow2.org/) - All-purpose, low-level bytecode manipulation and analysis.
* [ASM](https://asm.ow2.org/) - All-purpose, low-level bytecode manipulation and analysis.
* [Byte Buddy](http://bytebuddy.net/) - Further simplifies bytecode generation with a fluent API.
* [Byteman](http://byteman.jboss.org/) - Manipulate bytecode at runtime via DSL (rules); mainly for testing/troubleshooting.
* [Byteman](https://byteman.jboss.org/) - Manipulate bytecode at runtime via DSL (rules); mainly for testing/troubleshooting.
* [cglib](https://github.com/cglib/cglib) - Bytecode generation library.
* [Javassist](http://jboss-javassist.github.io/javassist/) - Tries to simplify bytecode editing.
* [Javassist](https://jboss-javassist.github.io/javassist/) - Tries to simplify bytecode editing.
## Caching
@ -138,8 +138,8 @@ A curated list of awesome Java frameworks, libraries and software.
*Frameworks that can dynamically manage applications inside of a cluster.*
* [Apache Aurora](http://aurora.apache.org/) - Mesos framework for long-running services and cron jobs.
* [Apache Mesos](http://mesos.apache.org/) - Abstracts CPU, memory, storage, and other compute resources away from machines.
* [Apache Aurora](https://aurora.apache.org/) - Mesos framework for long-running services and cron jobs.
* [Apache Mesos](https://mesos.apache.org/) - Abstracts CPU, memory, storage, and other compute resources away from machines.
* [Singularity](http://getsingularity.com/) - Mesos framework that makes deployment and operations easy. It supports web services, background workers, scheduled jobs, and one-off tasks.
## Code Analysis
@ -148,10 +148,11 @@ A curated list of awesome Java frameworks, libraries and software.
* [Checkstyle](https://github.com/checkstyle/checkstyle) - Static analysis of coding conventions and standards.
* [Error Prone](https://github.com/google/error-prone) - Catches common programming mistakes as compile-time errors.
* [FindBugs](http://findbugs.sourceforge.net/) - Static analysis of bytecode to find potential bugs.
* [Spotbugs](https://github.com/spotbugs/spotbugs) - Static analysis of bytecode to find potential bugs.
* [Infer](https://github.com/facebook/infer) - Modern static analysis tool for verifying the correctness of code.
* [jQAssistant](http://jqassistant.org/) - Static code analysis with Neo4J-based query language.
* [jQAssistant](https://jqassistant.org/) - Static code analysis with Neo4J-based query language.
* [PMD](https://github.com/pmd/pmd) - Source code analysis for finding bad coding practices.
* [Sourcetrail ![c]](https://www.sourcetrail.com) - Visual source code navigator.
* [Spoon](https://github.com/INRIA/spoon/) - Library for analyzing and transforming Java source code.
## Code Coverage
@ -159,7 +160,7 @@ A curated list of awesome Java frameworks, libraries and software.
*Frameworks and tools that enable code coverage metrics collection for test suites.*
* [Clover ![c]](https://www.atlassian.com/software/clover/overview) - Relies on source-code instrumentation instead of bytecode instrumentation.
* [Cobertura](http://cobertura.github.io/cobertura/) - Relies on offline (or static) bytecode instrumentation and class loading to collect code coverage metrics.
* [Cobertura](https://cobertura.github.io/cobertura/) - Relies on offline (or static) bytecode instrumentation and class loading to collect code coverage metrics.
* [JaCoCo](http://eclemma.org/jacoco/) - Framework that enables collection of code coverage metrics, using both offline and runtime bytecode instrumentation.
## Code Generators
@ -169,11 +170,11 @@ A curated list of awesome Java frameworks, libraries and software.
* [ADT4J](https://github.com/sviperll/adt4j) - JSR-269 code generator for algebraic data types.
* [Auto](https://github.com/google/auto) - Generates factory, service, and value classes.
* [FreeBuilder](https://github.com/google/FreeBuilder) - Automatically generates the Builder pattern.
* [Immutables](http://immutables.github.io/) - Annotation processors to generate simple, safe and consistent value objects.
* [Immutables](https://immutables.github.io/) - Annotation processors to generate simple, safe and consistent value objects.
* [JavaPoet](https://github.com/square/javapoet) - API to generate source files.
* [JHipster](https://github.com/jhipster/generator-jhipster) - Yeoman source code generator for Spring Boot and AngularJS.
* [Joda-Beans](http://www.joda.org/joda-beans/) - Small framework that adds queryable properties to Java, enhancing JavaBeans.
* [Lombok](https://projectlombok.org/) - Code generator that aims to reduce verbosity.
* [JavaPoet](https://github.com/square/javapoet) - API to generate source files.
## Command-line Argument Parsers
@ -182,7 +183,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [Airline](https://github.com/airlift/airline) - Annotation-based framework for parsing Git-like command-line arguments.
* [args4j](http://args4j.kohsuke.org/) - Small library to parse command-line arguments.
* [JCommander](http://jcommander.org/) - Command-line argument-parsing framework with custom types and validation via implementing interfaces.
* [JOpt Simple](http://pholser.github.io/jopt-simple/) - Simple parser that uses the POSIX getopt() and GNU getopt_long() syntaxes. Uses a fluent API instead of annotations.
* [JOpt Simple](https://pholser.github.io/jopt-simple/) - Simple parser that uses the POSIX getopt() and GNU getopt_long() syntaxes. Uses a fluent API instead of annotations.
* [picocli](http://picocli.info/) - ANSI colors and styles in usage help. Can be included as source to avoid dependency. Annotation-based, POSIX/GNU/any syntax, subcommands, strong typing for both options and positional args.
## Compiler-compiler
@ -196,6 +197,8 @@ A curated list of awesome Java frameworks, libraries and software.
*Libraries that provide external configuration.*
* [centraldogma](https://github.com/line/centraldogma) - Highly-available version-controlled service configuration repository based on Git, ZooKeeper and HTTP/2.
* [cfg4j](https://github.com/cfg4j/cfg4j) - Modern configuration library for distributed apps written in Java.
* [config](https://github.com/typesafehub/config) - Configuration library for JVM languages.
* [ini4j](http://ini4j.sourceforge.net/) - Provides an API for handling Windows' INI files.
* [KAConf](https://github.com/mariomac/kaconf) - Annotation-based configuration system for Java and Kotlin.
@ -207,34 +210,34 @@ A curated list of awesome Java frameworks, libraries and software.
* [Choco](http://choco-solver.org/) - Off-the-shelf constraint satisfaction problem solver that uses constraint programming techniques.
* [JaCoP](https://github.com/radsz/jacop/) - Includes an interface for the FlatZinc language, enabling it to execute MiniZinc models.
* [OptaPlanner](http://www.optaplanner.org/) - Business planning and resource scheduling optimization solver.
* [OptaPlanner](https://www.optaplanner.org/) - Business planning and resource scheduling optimization solver.
## CSV
*Frameworks and libraries that simplify reading/writing CSV data.*
* [Apache Commons CSV](https://github.com/apache/commons-csv) - Provides a simple interface for reading and writing CSV files of various types.
* [jackson-dataformat-csv](https://github.com/FasterXML/jackson-dataformat-csv) - Jackson extension for reading and writing CSV.
* [opencsv](http://opencsv.sourceforge.net) - Simple CSV parser.
* [Super CSV](http://super-csv.github.io/super-csv/) - Powerful CSV parser with support for Dozer, Joda-Time and Java 8.
* [Super CSV](https://super-csv.github.io/super-csv/) - Powerful CSV parser with support for Dozer, Joda-Time and Java 8.
* [uniVocity-parsers](https://github.com/uniVocity/univocity-parsers) - One of the fastest and most feature-complete parsers. Also comes with parsers for TSV and fixed-width records.
## Database
*Everything that simplifies interactions with the database.*
* [Apache Phoenix](http://phoenix.apache.org/) - High-performance relational database layer over HBase for low-latency applications.
* [Apache Phoenix](https://phoenix.apache.org/) - High-performance relational database layer over HBase for low-latency applications.
* [Chronicle Map](https://github.com/OpenHFT/Chronicle-Map) - Efficient, in-memory (opt. persisted to disk), off-heap key-value store.
* [eXist](https://github.com/eXist-db/exist) - A NoSQL document database and application platform.
* [FlexyPool](https://github.com/vladmihalcea/flexy-pool) - Brings metrics and failover strategies to the most common connection pooling solutions.
* [Flyway](https://flywaydb.org/) - Simple database migration tool.
* [H2](http://h2database.com/) - Small SQL database notable for its in-memory functionality.
* [H2](https://h2database.com/) - Small SQL database notable for its in-memory functionality.
* [HikariCP](https://github.com/brettwooldridge/HikariCP) - High-performance JDBC connection pool.
* [JDBI](http://jdbi.org/) - Convenient abstraction of JDBC.
* [Jedis](https://github.com/xetorthio/jedis) - A small client for interaction with Redis, with methods for commands.
* [jetcd](https://github.com/justinsb/jetcd) - A client library for etcd.
* [Jinq](https://github.com/my2iu/Jinq) - Typesafe database queries via symbolic execution of Java 8 Lambdas (on top of JPA or jOOQ).
* [jOOQ](http://www.jooq.org/) - Generates typesafe code based on SQL schema.
* [Jedis](https://github.com/xetorthio/jedis) - Small client for interaction with Redis, with methods for commands.
* [Jest](https://github.com/searchbox-io/Jest) - Client for the Elasticsearch REST API.
* [jetcd](https://github.com/justinsb/jetcd) - Client library for etcd.
* [Jinq](https://github.com/my2iu/Jinq) - Typesafe database queries via symbolic execution of Java 8 Lambdas (on top of JPA or jOOQ).
* [jOOQ](https://www.jooq.org/) - Generates typesafe code based on SQL schema.
* [Liquibase](http://www.liquibase.org/) - Database-independent library for tracking, managing and applying database schema changes.
* [MapDB](http://www.mapdb.org/) - Embedded database engine that provides concurrent collections backed on disk or in off-heap memory.
* [MariaDB4j](https://github.com/vorburger/MariaDB4j/) - Launcher for MariaDB that requires no installation or external dependencies.
@ -245,9 +248,9 @@ A curated list of awesome Java frameworks, libraries and software.
* [Redisson](https://github.com/mrniko/redisson) - Allows for distributed and scalable data structures on top of a Redis server.
* [requery](https://github.com/requery/requery) - A modern, lightweight but powerful object mapping and SQL generator. Easily map to or create databases, or perform queries and updates from any Java-using platform.
* [Speedment](https://github.com/speedment/speedment) - Database access library that utilizes Java 8's Stream API for querying.
* [sql2o](http://sql2o.org/) - Thin JDBC wrapper that simplifies database access and provides simple mapping of ResultSets to POJOs.
* [Vibur DBCP](http://www.vibur.org/) - JDBC connection pool library with advanced performance monitoring capabilities.
* [Xodus](http://jetbrains.github.io/xodus/) - Highly concurrent transactional schema-less and ACID-compliant embedded database.
* [sql2o](https://sql2o.org/) - Thin JDBC wrapper that simplifies database access and provides simple mapping of ResultSets to POJOs.
* [Vibur DBCP](https://www.vibur.org/) - JDBC connection pool library with advanced performance monitoring capabilities.
* [Xodus](https://jetbrains.github.io/xodus/) - Highly concurrent transactional schema-less and ACID-compliant embedded database.
## Data Structures
@ -255,10 +258,10 @@ A curated list of awesome Java frameworks, libraries and software.
* [Apache Avro](https://avro.apache.org/) - Data interchange format with dynamic typing, untagged data, and absence of manually assigned IDs.
* [Apache Orc](https://orc.apache.org/) - Fast and efficient columnar storage format for Hadoop-based workloads.
* [Apache Parquet](http://parquet.apache.org/) - Columnar storage format based on assembly algorithms from Google's paper on Dremel.
* [Apache Parquet](https://parquet.apache.org/) - Columnar storage format based on assembly algorithms from Google's paper on Dremel.
* [Apache Thrift](https://thrift.apache.org/) - Data interchange format that originated at Facebook.
* [Big Queue](https://github.com/bulldog2011/bigqueue) - A big, fast and persistent queue based on memory-mapped files.
* [Persistent Collection](http://pcollections.org/) - Persistent and immutable analogue of the Java Collections Framework.
* [Persistent Collection](https://pcollections.org/) - Persistent and immutable analogue of the Java Collections Framework.
* [Protobuf](https://github.com/google/protobuf) - Google's data interchange format.
* [SBE](https://github.com/real-logic/simple-binary-encoding) - Simple Binary Encoding, one of the fastest message formats around.
* [Tape](https://github.com/square/tape) - A lightning-fast, transactional, file-based FIFO.
@ -270,8 +273,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [Almanac Converter](https://github.com/hypotemoose/almanac-converter) - Simple conversion between different calendar systems.
* [iCal4j](https://github.com/ical4j/ical4j) - Parse and build iCalendar [RFC 5545](https://tools.ietf.org/html/rfc5545) data models.
* [Joda-Time](http://www.joda.org/joda-time/) - De facto standard date/time-library before Java 8.
* [ThreeTenBP](https://github.com/ThreeTen/threetenbp) - Port of JSR 310 (java.time package) by the author of Joda-Time.
* [ThreeTen-Extra](https://github.com/ThreeTen/threeten-extra) - Additional date-time classes that complement those in JDK 8.
* [Time4J](https://github.com/MenoData/Time4J) - Advanced date and time library.
## Dependency Injection
@ -279,55 +281,52 @@ A curated list of awesome Java frameworks, libraries and software.
*Libraries that help to realize the [Inversion of Control](https://en.wikipedia.org/wiki/Inversion_of_control) paradigm.*
* [Apache DeltaSpike](https://deltaspike.apache.org/) - CDI extension framework.
* [Dagger2](http://google.github.io/dagger/) - Compile-time injection framework without reflection.
* [Dagger2](https://google.github.io/dagger/) - Compile-time injection framework without reflection.
* [Feather](https://github.com/zsoltherpai/feather) - Ultra-lightweight, JSR-330-compliant dependency injection library.
* [Governator](https://github.com/Netflix/governator) - Extensions and utilities that enhance Google Guice.
* [Guice](https://github.com/google/guice) - Lightweight and opinionated framework that completes Dagger.
* [HK2](https://hk2.java.net) - Lightweight and dynamic dependency injection framework.
* [HK2](https://javaee.github.io/hk2) - Lightweight and dynamic dependency injection framework.
## Development
*Augmentation of the development process at a fundamental level.*
* [AspectJ](https://eclipse.org/aspectj/) - Seamless aspect-oriented programming extension.
* [DCEVM](http://dcevm.github.io/) - JVM modification that allows unlimited redefinition of loaded classes at runtime.
* [DCEVM](https://dcevm.github.io/) - JVM modification that allows unlimited redefinition of loaded classes at runtime.
* [Faux Pas](https://github.com/zalando/faux-pas) - Library that simplifies error handling by circumventing the issue that none of the functional interfaces in the Java Runtime is allowed by default to throw checked exceptions.
* [HotswapAgent](https://github.com/HotswapProjects/HotswapAgent) - Unlimited runtime class and resource redefinition.
* [JavaParser](https://github.com/javaparser/javaparser) - Parse, modify and generate Java code.
* [JavaSymbolSolver](https://github.com/javaparser/javasymbolsolver) - A symbol solver for Java.
* [JRebel ![c]](http://zeroturnaround.com/software/jrebel/) - Instantly reloads code and configuration changes without redeploys.
* [Spring Loaded](https://github.com/spring-projects/spring-loaded) - Class reloading agent.
* [JRebel ![c]](https://zeroturnaround.com/software/jrebel/) - Instantly reloads code and configuration changes without redeploys.
* [NoException](https://noexception.machinezoo.com/) - Allows checked exceptions in functional interfaces and converts exceptions to Optional return.
## Distributed Applications
*Libraries and frameworks for writing distributed and fault-tolerant applications.*
* [Apache Geode](http://geode.apache.org/) - In-memory data management system that provides reliable asynchronous event notifications and guaranteed message delivery.
* [Apache Storm](http://storm.apache.org/) - Realtime computation system.
* [Apache ZooKeeper](http://zookeeper.apache.org/) - Coordination service with distributed configuration, synchronization, and naming registry for large distributed systems.
* [Apache Geode](https://geode.apache.org/) - In-memory data management system that provides reliable asynchronous event notifications and guaranteed message delivery.
* [Apache Storm](https://storm.apache.org/) - Realtime computation system.
* [Apache ZooKeeper](https://zookeeper.apache.org/) - Coordination service with distributed configuration, synchronization, and naming registry for large distributed systems.
* [Atomix](http://atomix.io/atomix/) - Fault-tolerant distributed coordination framework.
* [Axon Framework](http://www.axonframework.org/) - Framework for creating CQRS applications.
* [Copycat](http://atomix.io/copycat/) - Fault-tolerant state machine replication framework.
* [Dropwizard Circuit Breaker](https://github.com/mtakaki/dropwizard-circuitbreaker) - Circuit breaker design pattern for Dropwizard.
* [Failsafe](https://github.com/jhalterman/failsafe) - Simple failure handling with retries and circuit breakers.
* [Hazelcast ![c]](http://hazelcast.org/) - Highly scalable in-memory datagrid with a free open-source version.
* [Hazelcast ![c]](https://hazelcast.org/) - Highly scalable in-memory datagrid with a free open-source version.
* [Hystrix](https://github.com/Netflix/Hystrix) - Provides latency and fault tolerance.
* [JGroups](http://www.jgroups.org/) - Toolkit for reliable messaging and cluster creation.
* [Orbit](http://www.orbit.cloud/) - Virtual actors; adds another level of abstraction to traditional actors.
* [Quasar](http://www.paralleluniverse.co/quasar/) - Lightweight threads and actors for the JVM.
* [Quasar](https://www.paralleluniverse.co/quasar/) - Lightweight threads and actors for the JVM.
* [resilience4j](https://github.com/resilience4j/resilience4j) - Functional fault tolerance library.
* [Zuul](https://github.com/Netflix/zuul) - A gateway service that provides dynamic routing, monitoring, resiliency, security, and more.
## Distributed Databases
## Distributed Transactions
*Databases in a distributed system that appear to applications as a single data source.*
*Distributed transactions provide a mechanism for ensuring consistency of data updates in the presence of concurrent access and partial failures.*
* [Apache Cassandra](http://cassandra.apache.org) - Column-oriented and provides high availability with no single point of failure.
* [Apache HBase](http://hbase.apache.org) - Hadoop database for big data.
* [Druid](http://druid.io) - Real-time and historical OLAP data store that excels at aggregation and approximation queries.
* [Infinispan](http://infinispan.org/) - Highly concurrent key-value data store used for caching.
* [OpenTSDB](http://opentsdb.net) - Scalable and distributed time series database written on top of Apache HBase.
* [OrientDB](https://orientdb.com/orientdb/) - Embeddable distributed database written on top of Hazelcast.
* [Atomikos](https://www.atomikos.com) - Provides transactions for REST, SOA and microservices with support for JTA and XA.
* [Bitronix](https://github.com/bitronix/btm) - A simple but complete implementation of the JTA 1.1 API.
* [Narayana](http://narayana.io) - Provides support for traditional ACID and compensation transactions, also complies with JTA, JTS and other standards.
## Distribution
@ -336,10 +335,10 @@ A curated list of awesome Java frameworks, libraries and software.
* [Bintray ![c]](https://bintray.com/) - Version control for binaries that handle publishing. Compatible with Maven or Gradle, with a free plan for open-source software as well as several business plans.
* [Boxfuse](https://boxfuse.com) - Deployment of JVM applications to AWS using the principles of immutable infrastructure.
* [Capsule](http://www.capsule.io/) - Simple and powerful packaging and deployment. A fat JAR on steroids, or a "Docker for Java" that supports JVM-optimized containers.
* [Central Repository](http://search.maven.org/) - Largest binary component repository available as a free service to the open-source community. Default used by Apache Maven, and available in all other build tools.
* [Central Repository](https://search.maven.org/) - Largest binary component repository available as a free service to the open-source community. Default used by Apache Maven, and available in all other build tools.
* [IzPack](http://izpack.org/) - Setup authoring tool for cross-platform deployments.
* [JitPack](https://jitpack.io/) - Easy-to-use package repository for GitHub. Builds Maven/Gradle projects on demand and publishes ready-to-use packages.
* [Nexus ![c]](http://www.sonatype.com/nexus/solution-overview) - Binary management with proxy and caching capabilities.
* [Nexus ![c]](https://www.sonatype.com/nexus/solution-overview) - Binary management with proxy and caching capabilities.
* [packr](https://github.com/libgdx/packr/) - Packs JARs, assets and the JVM for native distribution on Windows, Linux and Mac OS X.
* [really-executable-jars-maven-plugin](https://github.com/brianm/really-executable-jars-maven-plugin) - Maven plugin for making self-executing JARs.
@ -347,21 +346,21 @@ A curated list of awesome Java frameworks, libraries and software.
*Libraries that assist with processing office document formats.*
* [Apache POI](http://poi.apache.org/) - Supports OOXML (XLSX, DOCX, PPTX) as well as OLE2 (XLS, DOC or PPT).
* [Apache POI](https://poi.apache.org/) - Supports OOXML (XLSX, DOCX, PPTX) as well as OLE2 (XLS, DOC or PPT).
* [documents4j](http://documents4j.com) - API for document format conversion using third-party converters such as MS Word.
* [docx4j](http://www.docx4java.org/trac/docx4j) - Create and manipulate Microsoft Open XML files.
* [docx4j](https://www.docx4java.org/trac/docx4j) - Create and manipulate Microsoft Open XML files.
## Formal Verification
*Formal-methods tools: proof assistants, model checking, symbolic execution etc.*
*Formal-methods tools: proof assistants, model checking, symbolic execution, etc.*
* [CATG](https://github.com/ksen007/janala2) - Concolic unit testing engine. Automatically generates unit tests using formal methods.
* [Checker Framework](http://types.cs.washington.edu/checker-framework/) - Pluggable type systems. Includes nullness types, physical units, immutability types and more.
* [Daikon](http://plse.cs.washington.edu/daikon/) - Detects likely program invariants and generates JML specs based on those invariants.
* [Java Path Finder (JPF)](http://babelfish.arc.nasa.gov/trac/jpf) - JVM formal verification tool containing a model checker and more. Created by NASA.
* [Checker Framework](https://types.cs.washington.edu/checker-framework/) - Pluggable type systems. Includes nullness types, physical units, immutability types and more.
* [Daikon](https://plse.cs.washington.edu/daikon/) - Detects likely program invariants and generates JML specs based on those invariants.
* [Java Path Finder (JPF)](https://babelfish.arc.nasa.gov/trac/jpf) - JVM formal verification tool containing a model checker and more. Created by NASA.
* [JMLOK 2.0](http://massoni.computacao.ufcg.edu.br/home/jmlok) - Detects inconsistencies between code and JML specification through feedback-directed random tests generation, and suggests a likely cause for each nonconformance detected.
* [KeY](http://key-project.org/) - Formal software development tool that aims to integrate design, implementation, formal specification, and formal verification of object-oriented software as seamlessly as possible. Uses JML for specification and symbolic execution for verification.
* [OpenJML](http://openjml.github.io/) - Translates JML specifications into SMT-LIB format and passes the proof problems implied by the program to backend solvers.
* [KeY](https://key-project.org/) - Formal software development tool that aims to integrate design, implementation, formal specification, and formal verification of object-oriented software as seamlessly as possible. Uses JML for specification and symbolic execution for verification.
* [OpenJML](https://openjml.github.io/) - Translates JML specifications into SMT-LIB format and passes the proof problems implied by the program to backend solvers.
## Functional Programming
@ -383,18 +382,19 @@ A curated list of awesome Java frameworks, libraries and software.
* [jMonkeyEngine](https://jmonkeyengine.org/) - Game engine for modern 3D development.
* [libGDX](https://libgdx.badlogicgames.com/) - All-round cross-platform, high-level framework.
* [LWJGL](https://www.lwjgl.org/) - Robust framework that abstracts libraries like OpenGL/CL/AL.
* [FXGL](https://almasb.github.io/FXGL/) - JavaFX Game Development Framework.
## Geospatial
*Libraries for working with geospatial data and algorithms.*
* [Apache SIS](http://sis.apache.org/) - Library for developing geospatial applications.
* [Apache SIS](https://sis.apache.org/) - Library for developing geospatial applications.
* [Geo](https://github.com/davidmoten/geo/) - GeoHash utilities in Java.
* [Geotoolkit.org](http://www.geotoolkit.org/) - Library for developing geospatial applications. Built on top of the Apache SIS project.
* [GeoTools](http://geotools.org/) - Library that provides tools for geospatial data.
* [GraphHopper](https://github.com/graphhopper/graphhopper) - Road-routing engine. Used as a Java library or standalone web service.
* [H2GIS](http://www.h2gis.org/) - A spatial extension of the H2 database.
* [Jgeohash](http://astrapi69.github.io/jgeohash/) - Library for using the GeoHash algorithm.
* [Jgeohash](https://astrapi69.github.io/jgeohash/) - Library for using the GeoHash algorithm.
* [Mapsforge](https://github.com/mapsforge/mapsforge/) - Map rendering based on OpenStreetMap data.
* [Spatial4j](https://github.com/locationtech/spatial4j/) - General-purpose spatial/geospatial library.
@ -402,19 +402,19 @@ A curated list of awesome Java frameworks, libraries and software.
*Libraries to create modern graphical user interfaces.*
* [JavaFX](http://www.oracle.com/technetwork/java/javase/overview/javafx-overview-2158620.html) - The successor of Swing.
* [Scene Builder](http://gluonhq.com/open-source/scene-builder/) - Visual layout tool for JavaFX applications.
* [SWT](http://www.eclipse.org/swt/) - The Standard Widget Toolkit, a graphical widget toolkit.
* [JavaFX](https://www.oracle.com/technetwork/java/javase/overview/javafx-overview-2158620.html) - The successor of Swing.
* [Scene Builder](https://gluonhq.com/open-source/scene-builder/) - Visual layout tool for JavaFX applications.
* [SWT](https://www.eclipse.org/swt/) - The Standard Widget Toolkit, a graphical widget toolkit.
## High Performance
*Everything about high-performance computation, from collections to specific libraries.*
* [Agrona](https://github.com/real-logic/Agrona) - Data structures and utility methods that are common in high-performance applications.
* [Disruptor](http://lmax-exchange.github.io/disruptor/) - Inter-thread messaging library.
* [Disruptor](https://lmax-exchange.github.io/disruptor/) - Inter-thread messaging library.
* [Eclipse Collections](https://github.com/eclipse/eclipse-collections) - Collections framework inspired by Smalltalk.
* [fastutil](http://fastutil.di.unimi.it/) - Fast and compact type-specific collections.
* [HPPC](http://labs.carrotsearch.com/hppc.html) - Primitive collections.
* [HPPC](https://labs.carrotsearch.com/hppc.html) - Primitive collections.
* [JCTools](https://github.com/JCTools/JCTools) - Concurrency tools currently missing from the JDK.
* [Koloboke](https://github.com/OpenHFT/Koloboke) - Hash sets and hash maps.
@ -424,9 +424,9 @@ A curated list of awesome Java frameworks, libraries and software.
* [Async Http Client](https://github.com/AsyncHttpClient/async-http-client) - Asynchronous HTTP and WebSocket client library.
* [Feign](https://github.com/Netflix/feign) - HTTP client binder inspired by Retrofit, JAXRS-2.0, and WebSocket.
* [OkHttp](http://square.github.io/okhttp/) - HTTP+SPDY client.
* [OkHttp](https://square.github.io/okhttp/) - HTTP+SPDY client.
* [restQL-core](https://github.com/B2W-BIT/restQL-core) - Microservice query language that fetches information from multiple services.
* [Retrofit](http://square.github.io/retrofit/) - Typesafe REST client.
* [Retrofit](https://square.github.io/retrofit/) - Typesafe REST client.
* [Ribbon](https://github.com/Netflix/ribbon) - Client-side IPC library that is battle-tested in cloud.
* [Riptide](https://github.com/zalando/riptide) - Client-side response routing for Spring's RestTemplate.
@ -441,8 +441,8 @@ A curated list of awesome Java frameworks, libraries and software.
*Integrated development environments that try to simplify several aspects of development.*
* [Eclipse](http://www.eclipse.org/) - Established open-source project with support for lots of plugins and languages.
* [IntelliJ IDEA ![c]](http://www.jetbrains.com/idea/) - Supports many JVM languages and provides good options for Android development. The commercial edition targets the enterprise sector.
* [Eclipse](https://www.eclipse.org/) - Established open-source project with support for lots of plugins and languages.
* [IntelliJ IDEA ![c]](https://www.jetbrains.com/idea/) - Supports many JVM languages and provides good options for Android development. The commercial edition targets the enterprise sector.
* [NetBeans](https://netbeans.org/) - Provides integration for several Java SE and EE features, from database access to HTML5.
## Imagery
@ -459,7 +459,7 @@ A curated list of awesome Java frameworks, libraries and software.
*Libraries for serializing and deserializing JSON to and from Java objects.*
* [Genson](http://owlike.github.io/genson/) - Powerful and easy-to-use Java-to-JSON conversion library.
* [Genson](https://owlike.github.io/genson/) - Powerful and easy-to-use Java-to-JSON conversion library.
* [Gson](https://github.com/google/gson) - Serializes objects to JSON and vice versa. Good performance with on-the-fly usage.
* [HikariJSON](https://github.com/brettwooldridge/HikariJSON) - High-performance JSON parser, 2x faster than Jackson.
* [Jackson-datatype-money](https://github.com/zalando/jackson-datatype-money) - Open-source Jackson module to support JSON serialization and deserialization of JavaMoney data types.
@ -468,6 +468,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [jsoniter](http://jsoniter.com) - Fast and flexible library with iterator and lazy parsing API.
* [LoganSquare](https://github.com/bluelinelabs/LoganSquare) - JSON parsing and serializing library based on Jackson's streaming API. Outperforms GSON & Jackson's library.
* [Moshi](https://github.com/square/moshi) - Modern JSON library, less opinionated and uses built-in types like List and Map.
* [Yasson](https://github.com/eclipse/yasson) - Binding layer between classes and JSON documents similar to JAXB.
## JSON Processing
@ -483,23 +484,23 @@ A curated list of awesome Java frameworks, libraries and software.
*Current implementations of the JVM/JDK.*
* [Avian](https://github.com/ReadyTalk/avian) - JVM with both JIT and AOT modes. Includes an iOS port.
* [JDK 9](https://jdk9.java.net/) - Early-access releases of JDK 9.
* [OpenJ9](https://github.com/eclipse/openj9) - High performance, enterprise calibre, flexibly licensed, openly governed cross platform Java Virtual Machine extending and augmenting the runtime technology components from the Eclipse OMR and OpenJDK project.
* [OpenJDK](http://openjdk.java.net/) - Open-source implementation for Linux.
* [ParparVM](https://github.com/codenameone/CodenameOne/tree/master/vm) - VM with non-blocking, concurrent GC for iOS.
* [Zulu OpenJDK 9](http://zulu.org/zulu-9-pre-release-downloads/) - Early-access OpenJDK 9 builds for Windows, Linux, and Mac OS X.
* [Zulu OpenJDK](http://www.azul.com/downloads/zulu/) - OpenJDK builds for Windows, Linux, and Mac OS X through Java 8.
* [Zulu OpenJDK 9](https://zulu.org/zulu-9-pre-release-downloads/) - Early-access OpenJDK 9 builds for Windows, Linux, and Mac OS X.
* [Zulu OpenJDK](https://www.azul.com/downloads/zulu/) - OpenJDK builds for Windows, Linux, and Mac OS X through Java 8.
## Logging
*Libraries that log the behavior of an application.*
* [Apache Log4j 2](http://logging.apache.org/log4j/) - Complete rewrite with a powerful plugin and configuration architecture.
* [Apache Log4j 2](https://logging.apache.org/log4j/) - Complete rewrite with a powerful plugin and configuration architecture.
* [Graylog](https://www.graylog.org/) - Open-source aggregator suited for extended role and permission management.
* [Kibana](https://www.elastic.co/products/kibana) - Analyzes and visualizes log files. Some features require payment.
* [Logback](http://logback.qos.ch/) - Robust logging library with interesting configuration options via Groovy.
* [Logback](https://logback.qos.ch/) - Robust logging library with interesting configuration options via Groovy.
* [Logbook](https://github.com/zalando/logbook) - Extensible, open-source library for HTTP request and response logging.
* [Logstash](https://www.elastic.co/products/logstash) - Tool for managing log files.
* [SLF4J](http://www.slf4j.org/) - Abstraction layer/simple logging facade.
* [SLF4J](https://www.slf4j.org/) - Abstraction layer/simple logging facade.
* [tinylog](http://www.tinylog.org/) - Lightweight logging framework with static logger class.
* [Tracer](https://github.com/zalando/tracer) - Call tracing and log correlation in distributed systems.
@ -509,24 +510,24 @@ A curated list of awesome Java frameworks, libraries and software.
* [Apache Flink](https://flink.apache.org/) - Fast, reliable, large-scale data processing engine.
* [Apache Mahout](https://mahout.apache.org/) - Scalable algorithms focused on collaborative filtering, clustering and classification.
* [Apache Spark](http://spark.apache.org/) - Data analytics cluster-computing framework.
* [Apache Spark](https://spark.apache.org/) - Data analytics cluster-computing framework.
* [DatumBox](http://www.datumbox.com) - Provides several algorithms and pre-trained models for natural language processing.
* [DeepDive](http://deepdive.stanford.edu) - Creates structured information from unstructured data and integrates it into an existing database.
* [Deeplearning4j](http://deeplearning4j.org/) - Distributed and multi-threaded deep learning library.
* [H2O](http://www.h2o.ai/) - Analytics engine for statistics over big data.
* [Deeplearning4j](https://deeplearning4j.org/) - Distributed and multi-threaded deep learning library.
* [H2O](https://www.h2o.ai/) - Analytics engine for statistics over big data.
* [JSAT](https://github.com/EdwardRaff/JSAT) - Algorithms for pre-processing, classification, regression, and clustering with support for multi-threaded execution.
* [Oryx 2](https://github.com/OryxProject/oryx) - Framework for building real-time, large-scale machine learning applications. Includes end-to-end applications for collaborative filtering, classification, regression, and clustering.
* [Smile](http://haifengl.github.io/smile/) - The Statistical Machine Intelligence and Learning Engine provides a set of machine learning algorithms and a visualization library.
* [Weka](http://www.cs.waikato.ac.nz/ml/weka/) - Collection of algorithms for data mining tasks ranging from pre-processing to visualization.
* [Smile](https://haifengl.github.io/smile/) - The Statistical Machine Intelligence and Learning Engine provides a set of machine learning algorithms and a visualization library.
* [Weka](https://www.cs.waikato.ac.nz/ml/weka/) - Collection of algorithms for data mining tasks ranging from pre-processing to visualization.
## Messaging
*Tools that help send messages between clients to ensure protocol independency.*
* [Aeron](https://github.com/real-logic/Aeron) - Efficient, reliable, unicast and multicast message transport.
* [Apache ActiveMQ](http://activemq.apache.org/) - Message broker that implements JMS and converts synchronous to asynchronous communication.
* [Apache Camel](http://camel.apache.org/) - Glues together different transport APIs via Enterprise Integration Patterns.
* [Apache Kafka](http://kafka.apache.org/) - High-throughput distributed messaging system.
* [Apache ActiveMQ](https://activemq.apache.org/) - Message broker that implements JMS and converts synchronous to asynchronous communication.
* [Apache Camel](https://camel.apache.org/) - Glues together different transport APIs via Enterprise Integration Patterns.
* [Apache Kafka](https://kafka.apache.org/) - High-throughput distributed messaging system.
* [Hermes](http://hermes.allegro.tech) - Fast and reliable message broker built on top of Kafka.
* [JeroMQ](https://github.com/zeromq/jeromq) - Implementation of ZeroMQ.
* [Nakadi](https://github.com/zalando/nakadi) - Provides a RESTful API on top of Kafka.
@ -537,12 +538,12 @@ A curated list of awesome Java frameworks, libraries and software.
*Everything else.*
* [Codename One](https://www.codenameone.com/) - Cross-platform solution for writing native mobile (iOS, Android, etc.) apps.
* [Codename One](https://www.codenameone.com/) - Cross-platform solution for writing native mobile apps.
* [CQEngine](https://github.com/npgall/cqengine) - Ultra-fast, SQL-like queries on Java collections.
* [Design Patterns](https://github.com/iluwatar/java-design-patterns) - Implementation and explanation of the most common design patterns.
* [Failsafe](https://github.com/jhalterman/failsafe) - Simple failure handling with retries and circuit breakers.
* [FF4J](http://www.ff4j.org/) - Feature Flags for Java.
* [J2ObjC](https://github.com/google/j2objc) - Java-to-Objective-C translator for porting Android libraries to iOS.
* [javaslang-circuitbreaker](https://github.com/javaslang/javaslang-circuitbreaker) - Functional fault tolerance library.
* [JavaX](http://javax.ai1.lol/) - Reinventing and extending Java with a focus on simplicity.
* [JBake](http://jbake.org) - Static website generator.
* [JBot](https://github.com/ramswaroop/jbot) - Framework for building chatbots.
@ -551,12 +552,17 @@ A curated list of awesome Java frameworks, libraries and software.
* [JPad](http://jpad.io/) - Snippet runner.
* [Lanterna](https://github.com/mabe02/lanterna) - Easy console text-GUI library, similar to curses.
* [LightAdmin](http://lightadmin.org/) - Pluggable CRUD UI library for rapid application development.
* [Maven Wrapper](https://github.com/takari/maven-wrapper) - Analogue of Gradle Wrapper for Maven, allows build projects without installing maven.
* [Membrane Service Proxy](https://github.com/membrane/service-proxy) - An open-source, reverse-proxy framework written in Java.
* [Multi-OS Engine](https://software.intel.com/en-us/multi-os-engine) - An open-source, cross-platform engine to develop native mobile (iOS, Android, etc.) apps.
* [Modern Java - A Guide to Java 8](https://github.com/winterbe/java8-tutorial) - Popular Java 8 guide.
* [Modernizer](https://github.com/andrewgaul/modernizer-maven-plugin) - Detect uses of legacy Java APIs.
* [OpenRefine](http://openrefine.org/) - Tool for working with messy data: cleaning, transforming, extending it with web services and linking it to databases.
* [Polyglot for Maven](https://github.com/takari/polyglot-maven/) - Extensions for Maven 3.3.1+ that allows writing the POM model in dialects other than XML.
* [Smooks](https://github.com/smooks/smooks) - Extensible framework for building applications that process data which means bindings, transformations, message processing and enrichment.
* [Togglz](https://www.togglz.org/) - Implementation of the Feature Toggles pattern.
* [TypeTools](https://github.com/jhalterman/typetools) - Tools for resolving generic types.
* [XMLBeam](https://github.com/SvenEwald/xmlbeam) - Processes XML by using annotations or XPath within code.
## Microservice
@ -573,6 +579,8 @@ A curated list of awesome Java frameworks, libraries and software.
* [AppDynamics ![c]](https://www.appdynamics.com/) - Performance monitor.
* [Automon](https://github.com/stevensouza/automon) - Combines the power of AOP with monitoring and/or logging tools.
* [Failsafe Actuator](https://github.com/zalando-incubator/failsafe-actuator) - Out of the box monitoring of Failsafe Circuit Breaker in Spring-Boot environment.
* [BugSnag ![c]](https://www.bugsnag.com/) - Exception and error monitoring with a integration of several third party tools for a better workflow and a free hobbyist tier.
* [Glowroot](https://glowroot.org/) - Open-source Java APM.
* [Instrumental ![c]](https://instrumentalapp.com) - Real-time Java application performance monitoring. A commercial service with free development accounts.
* [JavaMelody](https://github.com/javamelody/javamelody) - Performance monitoring and profiling.
@ -580,7 +588,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [Jolokia](https://jolokia.org/) - JMX over REST.
* [Kamon](http://www.kamon.io/) - Tool for monitoring applications running on the JVM.
* [Metrics](http://metrics.dropwizard.io/) - Expose metrics via JMX or HTTP and send them to a database.
* [New Relic ![c]](http://newrelic.com/) - Performance monitor.
* [New Relic ![c]](https://newrelic.com/) - Performance monitor.
* [nudge4j](https://github.com/lorenzoongithub/nudge4j) - Remote developer console from the browser for Java 8 via bytecode injection.
* [OverOps ![c]](https://www.overops.com/) - In-production error monitoring and debugging.
* [Pinpoint](https://github.com/naver/pinpoint) - Open-source APM tool.
@ -600,10 +608,10 @@ A curated list of awesome Java frameworks, libraries and software.
*Libraries that specialize in processing text.*
* [CoreNLP](http://nlp.stanford.edu/software/corenlp.shtml) - Provides a set of fundamental tools for tasks like tagging, named entity recognition, and sentiment analysis.
* [CogCompNLP](https://github.com/CogComp/cogcomp-nlp) - Provides common annotators for plain text input.
* [CoreNLP](https://nlp.stanford.edu/software/corenlp.shtml) - Provides a set of fundamental tools for tasks like tagging, named entity recognition, and sentiment analysis.
* [DKPro](https://dkpro.github.io/) - Collection of reusable NLP tools for linguistic pre-processing, machine learning, lexical resources, etc.
* [LingPipe](http://alias-i.com/lingpipe/) - Toolkit for tasks ranging from POS tagging to sentiment analysis.
* [CogCompNLP](https://github.com/CogComp/cogcomp-nlp) - Provides common annotators for plain text input.
## Networking
@ -611,10 +619,11 @@ A curated list of awesome Java frameworks, libraries and software.
* [Comsat](https://github.com/puniverse/comsat) - Integrates standard Java web-related APIs with Quasar fibers and actors.
* [Finagle](https://github.com/twitter/finagle) - Extensible RPC system for constructing high-concurrency servers. It implements uniform client and server APIs for several protocols, and is protocol-agnostic to simplify implementation of new protocols.
* [Grizzly](https://grizzly.java.net/) - NIO framework. Used as a network layer in Glassfish.
* [Grizzly](https://javaee.github.io/grizzly) - NIO framework. Used as a network layer in Glassfish.
* [gRPC](https://github.com/grpc/grpc-java) - RPC framework based on protobuf and HTTP/2.
* [KryoNet](https://github.com/EsotericSoftware/kryonet) - Provides a clean and simple API for efficient TCP and UDP client/server network communication using NIO and Kryo.
* [MINA](https://mina.apache.org/) - Abstract, event-driven async I/O API for network operations over TCP/IP and UDP/IP via Java NIO.
* [Netty](http://netty.io/) - Framework for building high-performance network applications.
* [Netty](https://netty.io/) - Framework for building high-performance network applications.
* [Nifty](https://github.com/facebook/nifty) - Implementation of Thrift clients and servers on Netty.
* [Undertow](http://undertow.io/) - Web server providing both blocking and non-blocking APIs based on NIO. Used as a network layer in WildFly.
* [urnlib](https://github.com/slub/urnlib) - Represent, parse and encode URNs, as in RFC 2141.
@ -623,8 +632,8 @@ A curated list of awesome Java frameworks, libraries and software.
*APIs that handle the persistence of objects.*
* [Apache Cayenne](http://cayenne.apache.org/) - Provides a clean, static API for data access. Also includes a GUI Modeler for working with database mappings, and DB reverse engineering and generation.
* [Ebean](http://ebean-orm.github.io/) - Provides simple and fast data access.
* [Apache Cayenne](https://cayenne.apache.org/) - Provides a clean, static API for data access. Also includes a GUI Modeler for working with database mappings, and DB reverse engineering and generation.
* [Ebean](https://ebean-orm.github.io/) - Provides simple and fast data access.
* [EclipseLink](https://www.eclipse.org/eclipselink/) - Supports a number of persistence standards: JPA, JAXB, JCA and SDO.
* [Hibernate](http://hibernate.org/orm/) - Robust and widely used, with an active community.
* [MyBatis](http://www.mybatis.org/mybatis-3/) - Couples objects with stored procedures or SQL statements.
@ -645,13 +654,13 @@ A curated list of awesome Java frameworks, libraries and software.
*Tools to help with PDF file creation.*
* [Apache FOP](http://xmlgraphics.apache.org/fop/) - Creates PDFs from XSL-FO.
* [Apache PDFBox](http://pdfbox.apache.org/) - Toolbox for creating and manipulating PDFs.
* [Apache FOP](https://xmlgraphics.apache.org/fop/) - Creates PDFs from XSL-FO.
* [Apache PDFBox](https://pdfbox.apache.org/) - Toolbox for creating and manipulating PDFs.
* [Dynamic Jasper](http://dynamicjasper.com/) - Abstraction layer to JasperReports.
* [DynamicReports](http://dynamicreports.org/) - Simplifies JasperReports.
* [flyingsaucer](https://github.com/flyingsaucerproject/flyingsaucer) - XML/XHTML and CSS 2.1 renderer.
* [iText ![c]](http://itextpdf.com/) - Creates PDF files programmatically.
* [JasperReports](http://community.jaspersoft.com/project/jasperreports-library) - Complex reporting engine.
* [iText ![c]](https://itextpdf.com/) - Creates PDF files programmatically.
* [JasperReports](https://community.jaspersoft.com/project/jasperreports-library) - Complex reporting engine.
## Performance analysis
@ -665,7 +674,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [JMH](http://openjdk.java.net/projects/code-tools/jmh/) - a Java harness for building, running, and analysing nano/micro/milli/macro benchmarks written in Java and other languages targeting the JVM.
* [JProfiler ![c]](https://www.ej-technologies.com/products/jprofiler/overview.html) - Database profiling for JDBC, JPA and NoSQL, with JEE support.
* [LatencyUtils](https://github.com/LatencyUtils/LatencyUtils) - Utilities for latency measurement and reporting.
* [XRebel ![c]](http://zeroturnaround.com/software/xrebel/) - Real-time profiling for web applications, with an in-browser widget.
* [XRebel ![c]](https://zeroturnaround.com/software/xrebel/) - Real-time profiling for web applications, with an in-browser widget.
* [YourKit Java Profiler ![c]](https://www.yourkit.com/features/) - Profiler for any application running on the JVM.
## Platform
@ -675,16 +684,15 @@ A curated list of awesome Java frameworks, libraries and software.
* [CUBA Platform](https://cuba-platform.com) - High-level framework for developing enterprise applications with a rich web interface, based on Spring, EclipseLink and Vaadin.
* [Light-Java](https://github.com/networknt/light-java) - A fast, lightweight and productive microservices framework with built-in [security](https://github.com/networknt/light-oauth2).
* [Orienteer](https://github.com/OrienteerBAP/Orienteer) - Open-source business application platform for rapid configuration/development of CRM, ERP, LMS and other applications.
* [Spring](http://projects.spring.io/spring-framework/) - Provides many packages for dependency injection, aspect-oriented programming, security, etc.
* [Spring](https://spring.io/projects) - Provides many packages for dependency injection, aspect-oriented programming, security, etc.
## Reactive libraries
*Libraries for developing reactive applications.*
* [Akka](http://akka.io) - Toolkit and runtime for building concurrent, distributed, fault-tolerant and event-driven applications.
* [Akka](https://akka.io) - Toolkit and runtime for building concurrent, distributed, fault-tolerant and event-driven applications.
* [Reactive Streams](https://github.com/reactive-streams/reactive-streams-jvm/) - Provides a standard for asynchronous stream processing with non-blocking backpressure.
* [Reactor](http://projectreactor.io/) - Library for building reactive fast-data applications.
* [RxJava](https://github.com/ReactiveX/RxJava) - Library for composing asynchronous and event-based programs using observable sequences from the JVM.
* [Reactor](https://projectreactor.io/) - Library for building reactive fast-data applications.
* [vert.x](http://vertx.io/) - Polyglot event-driven application framework.
## REST Frameworks
@ -692,11 +700,11 @@ A curated list of awesome Java frameworks, libraries and software.
*Frameworks specifically for creating RESTful services.*
* [Dropwizard](https://dropwizard.github.io/dropwizard/) - Opinionated framework for setting up modern web applications with Jetty, Jackson, Jersey and Metrics.
* [Jersey](https://jersey.java.net/) - JAX-RS reference implementation.
* [Jersey](https://jersey.github.io/) - JAX-RS reference implementation.
* [Microserver](https://github.com/aol/micro-server) — A convenient, extensible microservices plugin system for Spring & Spring Boot. With more than 30 plugins and growing, it supports both micro-monolith and pure microservices styles.
* [Rapidoid](http://www.rapidoid.org/) - A simple, secure and extremely fast framework consisting of an embedded HTTP server, GUI components and dependency injection.
* [Rapidoid](https://www.rapidoid.org/) - A simple, secure and extremely fast framework consisting of an embedded HTTP server, GUI components and dependency injection.
* [rest.li](https://github.com/linkedin/rest.li) - Framework for building robust, scalable RESTful architectures using typesafe bindings and asynchronous, non-blocking IO with an end-to-end developer workflow that promotes clean practices, uniform interface design and consistent data modeling.
* [RESTEasy](http://resteasy.jboss.org/) - Fully certified and portable implementation of the JAX-RS specification.
* [RESTEasy](https://resteasy.jboss.org/) - Fully certified and portable implementation of the JAX-RS specification.
* [RestExpress](https://github.com/RestExpress/RestExpress) - Thin wrapper on the JBoss Netty HTTP stack that provides scaling and performance.
* [Restlet Framework](https://github.com/restlet/restlet-framework-java/) - Pioneering framework with powerful routing and filtering capabilities, and a unified client and server API.
* [Spark](http://sparkjava.com/) - Sinatra inspired framework.
@ -711,6 +719,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [JGraphT](https://github.com/jgrapht/jgrapht) - Graph library that provides mathematical graph-theory objects and algorithms.
* [JGraphX](https://github.com/jgraph/jgraphx) - Library for visualizing (mainly Swing) and interacting with node-edge graphs.
* [Mines Java Toolkit](https://github.com/MinesJTK/jtk) - Library for geophysical scientific computation, visualization and digital signal analysis.
* [Morpheus](http://www.zavtech.com/morpheus/docs/) - Provides a versatile two-dimensional memory efficient tabular data structure called a DataFrame to enable efficient in-memory analytics for scientific computing on the JVM.
* [Tablesaw](https://github.com/lwhite1/tablesaw) - Includes a data-frame, an embedded column store, and hundreds of methods to transform, summarize, or filter data.
## Search
@ -718,24 +727,26 @@ A curated list of awesome Java frameworks, libraries and software.
*Engines that index documents for search and analysis.*
* [Apache Lucene](https://lucene.apache.org/) - High-performance, full-featured, cross-platform, text search engine library.
* [Apache Solr](http://lucene.apache.org/solr/) - Enterprise search engine optimized for high-volume traffic.
* [Apache Solr](https://lucene.apache.org/solr/) - Enterprise search engine optimized for high-volume traffic.
* [Elasticsearch](https://www.elastic.co/) - Distributed, multitenant-capable, full-text search engine with a RESTful web interface and schema-free JSON documents.
## Security
*Libraries that handle security, authentication, authorization or session management.*
* [Apache Shiro](http://shiro.apache.org/) - Performs authentication, authorization, cryptography and session management.
* [Apache Shiro](https://shiro.apache.org/) - Performs authentication, authorization, cryptography and session management.
* [Bouncy Castle](https://www.bouncycastle.org/java.html) - All-purpose cryptographic library and JCA provider offering a wide range of functions, from basic helpers to PGP/SMIME operations.
* [Cryptomator](https://cryptomator.org/) - Multiplatform, transparent, client-side encryption of files in the cloud.
* [Hdiv](https://github.com/hdiv/hdiv) - Runtime application that repels application security risks included in the OWASP Top 10, including SQL injection, cross-site scripting, cross-site request forgery, data tampering, and brute force attacks.
* [jjwt](https://github.com/jwtk/jjwt) - JSON web token for Java and Android.
* [Keycloak](http://keycloak.jboss.org/) - Integrated SSO and IDM for browser apps and RESTful web services.
* [Keycloak](https://keycloak.jboss.org/) - Integrated SSO and IDM for browser apps and RESTful web services.
* [Keyczar](https://github.com/google/keyczar) - Easy-to-use, safe encryption framework with key versioning.
* [Keywhiz](https://github.com/square/keywhiz) - System for distributing and managing secrets.
* [Nbvcxz](https://github.com/GoSimpleLLC/nbvcxz) - Advanced password strength estimation.
* [OACC](http://oaccframework.org/) - Provides permission-based authorization services.
* [pac4j](https://github.com/pac4j/pac4j) - Security engine.
* [PicketLink](http://picketlink.org/) - Umbrella project for security and identity management.
* [Vault](https://www.vaultproject.io/) - Secures, stores, and tightly controls access to tokens, passwords, certificates, API keys, and other secrets. It handles leasing, key revocation, key rolling, and auditing. Through a unified API, users can access an encrypted Key/Value store and network encryption-as-a-service, or generate AWS IAM/STS credentials, SQL/NoSQL databases, X.509 certificates, SSH credentials, and more.
## Serialization
@ -745,14 +756,15 @@ A curated list of awesome Java frameworks, libraries and software.
* [FST](https://github.com/RuedigerMoeller/fast-serialization) - JDK-compatible, high-performance object graph serialization.
* [Kryo](https://github.com/EsotericSoftware/kryo) - Fast and efficient object graph serialization framework.
* [MessagePack](https://github.com/msgpack/msgpack-java) - Efficient binary serialization format.
* [PHP Serializer](https://github.com/marcospassos/java-php-serializer) - Serializing objects in the PHP serialization format.
## Server
*Servers specifically used to deploy applications.*
* [Apache Tomcat](http://tomcat.apache.org/) - Robust, all-round server for Servlet and JSP.
* [Apache TomEE](http://tomee.apache.org/) - Tomcat plus Java EE.
* [Jetty](http://www.eclipse.org/jetty/) - Provides a Web server and javax.servlet container, plus support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations.
* [Apache Tomcat](https://tomcat.apache.org/) - Robust, all-round server for Servlet and JSP.
* [Apache TomEE](https://tomee.apache.org/) - Tomcat plus Java EE.
* [Jetty](https://www.eclipse.org/jetty/) - Provides a Web server and javax.servlet container, plus support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations.
* [nanohttpd](https://github.com/NanoHttpd/nanohttpd) - Tiny, easily embeddable HTTP server.
* [WebSphere Liberty](https://developer.ibm.com/wasdev/) - Lightweight, modular server developed by IBM.
* [WildFly](http://www.wildfly.org/) - Formerly known as JBoss and developed by Red Hat with extensive Java EE support.
@ -761,70 +773,96 @@ A curated list of awesome Java frameworks, libraries and software.
*Tools that substitute expressions in a template.*
* [Handlebars.java](http://jknack.github.io/handlebars.java/) - Logicless and semantic Mustache templates.
* [Handlebars.java](https://jknack.github.io/handlebars.java/) - Logicless and semantic Mustache templates.
* [Jtwig](http://jtwig.org/) - Modular, configurable and fully tested template engine.
* [Jade4J](https://github.com/neuland/jade4j) - Implementation of jade.
* [Pebble](http://www.mitchellbosecke.com/pebble/home) - Inspired by Twig and separates itself with it's inheritance feature and it's easy-to-read syntax. It ships with built-in autoescaping for security and it includes integrated support for internationalization.
* [Thymeleaf](http://www.thymeleaf.org/) - Aims to be a substitute for JSP and works for XML files.
## Testing
*Tools that test from model to the view.*
### Asynchronous
*Tools that simplify testing asynchronous services.*
* [Awaitility](https://github.com/jayway/awaitility) - DSL for synchronizing asynchronous operations.
* [ConcurrentUnit](https://github.com/jhalterman/concurrentunit) - Toolkit for testing multi-threaded and asynchronous applications.
* [GreenMail](http://www.icegreen.com/greenmail/) - In-memory email server for integration testing. Supports SMTP, POP3 and IMAP including SSL.
* [Hoverfly Java](https://github.com/SpectoLabs/hoverfly-java) - Native bindings for Hoverfly a proxy which allows you to simulate HTTP services.
* [REST Assured](https://github.com/jayway/rest-assured) - DSL for easy testing of REST/HTTP services.
### BDD
* [Cucumber](https://github.com/cucumber/cucumber-jvm) - Behavioural Driven Development (BDD) testing framework.
*Testing for the software development process that emerged from TDD and was heavily influenced by DDD and OOAD.*
* [Cucumber](https://github.com/cucumber/cucumber-jvm) - Provides a way to describe features in a plain language which customers can understand.
* [Cukes-REST](https://github.com/ctco/cukes-rest) - A collection of Gherkin steps for REST-service testing using Cucumber.
* [J8Spec](https://github.com/j8spec/j8spec/) - Library that allows tests written in Java to follow the BDD style introduced by RSpec and Jasmine.
* [JBehave](http://jbehave.org/) - Framework for BDD.
* [JGiven](http://jgiven.org) - Developer-friendly BDD testing framework compatible with JUnit and TestNG.
* [Lamdba Behave](https://github.com/RichardWarburton/lambda-behave) - Descriptive behavioural specification framework.
* [J8Spec](https://github.com/j8spec/j8spec/) - Follows a Jasmine-like syntax.
* [JBehave](http://jbehave.org/) - Extensively configurable framework that describes stories.
* [JGiven](http://jgiven.org) - Provides a fluent API which allows for simpler composition.
* [Lamdba Behave](https://github.com/RichardWarburton/lambda-behave) - Aims to provide a fluent API to write tests in long and descriptive sentences that read like plain English.
### Fixtures
*Everything related to the creation and handling of random data.*
* [Beanmother](https://github.com/keepcosmos/beanmother) - Sets up beans from YAML fixtures.
* [Fixture Factory](https://github.com/six2six/fixture-factory) - Generates fake objects from a template.
* [JFairy](https://github.com/Codearte/jfairy) - Fake data generator.
* [Randomized Testing](https://github.com/randomizedtesting/randomizedtesting) - JUnit test runner and plugins for running JUnit tests with pseudo-randomness.
### Frameworks
* [ArchUnit](https://github.com/TNG/ArchUnit) - Test library for specifying and asserting architecture rules.
* [Apache JMeter](http://jmeter.apache.org/) - Functional testing and performance measurements.
* [Arquillian](http://arquillian.org/) - Integration and functional testing platform for Java EE containers.
* [Citrus](http://citrusframework.org/) - Integration testing framework that focuses on both client- and server-side messaging.
* [Gatling](http://gatling.io/) - Load testing tool designed for ease of use, maintainability and high performance.
* [JUnit](http://junit.org/) 💀 - Common testing framework.
* [Citrus](https://citrusframework.org/) - Integration testing framework that focuses on both client- and server-side messaging.
* [Gatling](https://gatling.io/) - Load testing tool designed for ease of use, maintainability and high performance.
* [JUnit](http://junit.org/) - Common testing framework.
* [TestNG](http://testng.org/) 💀 - Testing framework inspired by JUnit and NUnit, with different functionalities.
* [Spock](https://github.com/spockframework/spock) - Developer testing and specification framework for Java and Groovy applications.
* [PIT](http://pitest.org) - Fast mutation-testing framework for evaluating fault-detection abilities of existing JUnit or TestNG test suites.
* [Pact JVM](https://github.com/DiUS/pact-jvm/) - Consumer-driven contract testing.
See [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
### Matchers
*Libraries that provide custom matchers.*
* [AssertJ](https://joel-costigliola.github.io/assertj/) - Fluent assertions that improve readability.
* [JSONAssert](http://jsonassert.skyscreamer.org/) - Simplifies testing JSON strings.
* [Truth](https://github.com/google/truth) - Google's assertion and proposition framework.
### Miscellaneous
* [Mutability Detector](https://github.com/MutabilityDetector/MutabilityDetector) - Reports whether instances of a given class are immutable.
* [raml-tester](https://github.com/nidi3/raml-tester) - Tests if a request/response matches a given RAML definition.
* [TestContainers](https://github.com/testcontainers/testcontainers-java) - Provides throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
* [pojo-tester](http://www.pojo.pl/) - Automatically performs tests on basic POJO methods.
### Mocking
* [Fixture Factory](https://github.com/six2six/fixture-factory) - Generates fake objects from a template.
* [GreenMail](http://www.icegreen.com/greenmail/) - In-memory email server for integration testing. Supports SMTP, POP3 and IMAP including SSL.
* [JFairy](https://github.com/Codearte/jfairy) - Fake data generator.
* [JMockit](http://jmockit.org/) - Integration testing, API mocking and faking, and code coverage.
* [Mockito](https://github.com/mockito/mockito) - Mocking framework that lets you write tests with a clean and simple API.
* [MockServer](http://www.mock-server.com/) - Allows mocking of systems integrated with HTTPS.
* [MockServer](https://www.mock-server.com/) - Allows mocking of systems integrated with HTTPS.
* [Moco](https://github.com/dreamhead/moco) - Concise web services for stubs and mocks.
* [PowerMock](https://github.com/jayway/powermock) - Mocks static methods, constructors, final classes and methods, private methods, and removal of static initializers.
* [WireMock](http://wiremock.org/) - Stubs and mocks web services.
### Utilities / Helpers
* [AssertJ](http://joel-costigliola.github.io/assertj/) - Fluent assertions that improve readability.
* [Awaitility](https://github.com/jayway/awaitility) - DSL for synchronizing asynchronous operations.
### Parameterization
*Simplifies the writing of parameterized tests.*
* [Burst](https://github.com/square/burst) - A unit testing library for varying test data.
* [ConcurrentUnit](https://github.com/jhalterman/concurrentunit) - Toolkit for testing multi-threaded and asynchronous applications
* [Hamcrest](http://hamcrest.org/JavaHamcrest/) 💀 - Matchers that, when combined, create flexible expressions of intent.
* [JSONAssert](http://jsonassert.skyscreamer.org/) - Simplifies testing JSON strings.
* [junit-dataprovider](https://github.com/TNG/junit-dataprovider) - A TestNG-like data provider/runner for JUnit.
* [JUnitParams](https://pragmatists.github.io/JUnitParams/) - Creates readable and maintainable parametrised tests.
* [Mutability Detector](https://github.com/MutabilityDetector/MutabilityDetector) - Reports whether instances of a given class are immutable.
* [PIT](http://pitest.org) - Fast mutation-testing framework for evaluating fault-detection abilities of existing JUnit or TestNG test suites.
* [pojo-tester](http://www.pojo.pl/) - Automatically performs tests on basic POJO methods.
* [raml-tester](https://github.com/nidi3/raml-tester) - Tests if a request/response matches a given RAML definition.
* [Randomized Testing](https://github.com/randomizedtesting/randomizedtesting) - JUnit test runner and plugins for running JUnit tests with pseudo-randomness.
* [REST Assured](https://github.com/jayway/rest-assured) - Java DSL for easy testing of REST/HTTP services.
* [TestContainers](https://github.com/testcontainers/testcontainers-java) - Provides throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
* [Truth](https://github.com/google/truth) - Google's assertion and proposition framework.
## Utility
*Libraries which provide general utility functions.*
* [Apache Commons](http://commons.apache.org/) - Provides configuration, validation, collections, file uploading, XML processing and other general-purpose functions.
* [Apache Commons](https://commons.apache.org/) - Provides configuration, validation, collections, file uploading, XML processing and other general-purpose functions.
* [cactoos](http://www.cactoos.org) - Collection of object-oriented primitives.
* [CRaSH](http://www.crashub.org) - Provides a shell into a JVM that's running CRaSH. Used by Spring Boot and others.
* [Dex](https://github.com/PatMartin/Dex) - Java/JavaFX tool capable of powerful ETL and data visualization.
* [Embulk](http://www.embulk.org/) - Bulk data loader that helps data transfer between various databases, storages, file formats, and cloud services.
@ -834,7 +872,7 @@ See [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
* [JavaVerbalExpressions](https://github.com/VerbalExpressions/JavaVerbalExpressions) - Library that helps with constructing difficult regular expressions.
* [JGit](https://eclipse.org/jgit/) - A lightweight, pure Java library implementing the Git version control system.
* [minio-java](https://github.com/minio/minio-java) - Provides simple APIs to access any Amazon S3-compatible object storage server.
* [Protégé](http://protege.stanford.edu/) - Provides an ontology editor and a framework to build knowledge-based systems.
* [Protégé](https://protege.stanford.edu/) - Provides an ontology editor and a framework to build knowledge-based systems.
* [Underscore-java](https://github.com/javadev/underscore-java) - Port of Underscore.js functions.
## Version Managers
@ -849,48 +887,52 @@ See [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
*Libraries that analyze the content of websites.*
* [Apache Nutch](http://nutch.apache.org/) - Highly extensible, highly scalable web crawler for production environments.
* [Apache Nutch](https://nutch.apache.org/) - Highly extensible, highly scalable web crawler for production environments.
* [Crawler4j](https://github.com/yasserg/crawler4j) - Simple and lightweight web crawler.
* [JSoup](http://jsoup.org/) - Scrapes, parses, manipulates and cleans HTML.
* [jsoup](https://jsoup.org/) - Scrapes, parses, manipulates and cleans HTML.
* [StormCrawler](http://stormcrawler.net/) - SDK for building low-latency and scalable web crawlers.
## Web Frameworks
*Frameworks that handle the communication between the layers of a web application.*
* [Apache Tapestry](http://tapestry.apache.org/) - Component-oriented framework for creating dynamic, robust, highly scalable web applications.
* [Apache Wicket](http://wicket.apache.org/) - Component-based web application framework similar to Tapestry, with a stateful GUI.
* [Apache Tapestry](https://tapestry.apache.org/) - Component-oriented framework for creating dynamic, robust, highly scalable web applications.
* [Apache Wicket](https://wicket.apache.org/) - Component-based web application framework similar to Tapestry, with a stateful GUI.
* [Blade](https://github.com/biezhi/blade) - Lightweight, modular framework that aims to be elegant and simple.
* [Bootique](http://bootique.io/) - Minimally opinionated framework for runnable apps.
* [Firefly](http://www.fireflysource.com/) - Asynchronous framework for rapid development of high-performance web application.
* [Grails](https://grails.org/) - Groovy framework that provides a highly productive environment by favoring convention over configuration, no XML and support for mixins.
* [Jooby](http://jooby.org) - Scalable, fast and modular micro-framework that offers multiple programming models.
* [Ninja](http://www.ninjaframework.org/) - Full-stack web framework.
* [Pippo](http://www.pippo.ro/) - Small, highly modularized, Sinatra-like framework.
* [Play](https://www.playframework.com/) - Built on Akka, it provides predictable and minimal resource consumption (CPU, memory, threads) for highly-scalable applications in Java and Scala.
* [PrimeFaces](http://primefaces.org/) - JSF framework with both free and commercial/support versions and frontend components.
* [PrimeFaces](https://primefaces.org/) - JSF framework with both free and commercial/support versions and frontend components.
* [Ratpack](https://ratpack.io/) - Set of libraries that facilitate fast, efficient, evolvable and well-tested HTTP applications.
* [Spring Boot](http://projects.spring.io/spring-boot/) - Microframework that simplifies the development of new Spring applications.
* [Spring Boot](https://projects.spring.io/spring-boot/) - Microframework that simplifies the development of new Spring applications.
* [Vaadin](https://vaadin.com/home) - Event-driven framework build on top of GWT. Uses server-side architecture with Ajax on the client side.
# Resources
## Awesome Lists
*Awesome lists related to the Java/JVM ecosystem*
*Awesome lists related to the Java & JVM ecosystem.*
- [Awesome Gradle Plugins](https://github.com/ksoichiro/awesome-gradle)
- [Awesome JVM](https://github.com/deephacks/awesome-jvm)
- [Awesome Microservices](https://github.com/mfornos/awesome-microservices)
- [Awesome REST](https://github.com/marmelab/awesome-rest)
- [ciandcd](https://github.com/ciandcd/awesome-ciandcd)
- [Useful Java Links](https://github.com/Vedenin/useful-java-links)
* [Awesome Gradle Plugins](https://github.com/ksoichiro/awesome-gradle)
* [AwesomeJavaFX](https://github.com/mhrimaz/AwesomeJavaFX)
* [Awesome JVM](https://github.com/deephacks/awesome-jvm)
* [Awesome Microservices](https://github.com/mfornos/awesome-microservices)
* [Awesome REST](https://github.com/marmelab/awesome-rest)
* [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
* [ciandcd](https://github.com/ciandcd/awesome-ciandcd)
* [Useful Java Links](https://github.com/Vedenin/useful-java-links)
## Communities
*Active discussions.*
* [r/java](https://www.reddit.com/r/java) - Subreddit for the Java community.
* [stackoverflow](http://stackoverflow.com/questions/tagged/java) - Question/answer platform.
* [VirtualJUG](http://virtualjug.com/) - Virtual Java User Group.
* [stackoverflow](https://stackoverflow.com/questions/tagged/java) - Question/answer platform.
* [VirtualJUG](https://virtualjug.com/) - Virtual Java User Group.
## Frontends
@ -904,9 +946,9 @@ See [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
* [Core Java Volume I--Fundamentals](https://www.amazon.com/Core-Java-I-Fundamentals-10th/dp/0134177304)
* [Core Java, Volume II--Advanced Features](https://www.amazon.com/Core-Java-II-Advanced-Features-10th/dp/0134177290)
* [Effective Java (2nd Edition)](http://www.amazon.com/Effective-Java-Edition-Joshua-Bloch/dp/0321356683)
* [Java Concurrency in Practice](http://www.amazon.com/Java-Concurrency-Practice-Brian-Goetz/dp/0321349601)
* [Thinking in Java](http://www.amazon.com/Thinking-Java-Edition-Bruce-Eckel/dp/0131872486)
* [Effective Java (2nd Edition)](https://www.amazon.com/Effective-Java-Edition-Joshua-Bloch/dp/0321356683)
* [Java Concurrency in Practice](https://www.amazon.com/Java-Concurrency-Practice-Brian-Goetz/dp/0321349601)
* [Thinking in Java](https://www.amazon.com/Thinking-Java-Edition-Bruce-Eckel/dp/0131872486)
## Podcasts and Screencasts
@ -914,7 +956,7 @@ See [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
* [Java Off Heap](http://www.javaoffheap.com/)
* [Marco Behler's Screencasts](https://www.marcobehler.com/series) - Screencasts about modern Java development.
* [The Java Council](http://virtualjug.com/podcast/)
* [The Java Council](https://virtualjug.com/podcast/)
* [The Java Posse](http://www.javaposse.com/) - Discontinued as of 02/2015.
## Twitter
@ -930,6 +972,7 @@ See [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
* [Chris Richardson](https://twitter.com/crichardson) - Software architect, consultant, and serial entrepreneur, Java Champion, JavaOne Rock Star, *POJOs in Action* author.
* [Ed Burns](https://twitter.com/edburns) - Consulting Member of the Technical Staff at Oracle.
* [Eugen Paraschiv](https://twitter.com/baeldung) - Author of the Spring Security Course.
* [Heinz Kabutz](https://twitter.com/heinzkabutz) - Java Champion, speaker, author of The Java Specialists' Newsletter, concurrency performance expert.
* [Holly Cummins](https://twitter.com/holly_cummins) - Technical Lead of IBM London's Bluemix Garage, Java Champion, developer, author, JavaOne rockstar.
* [James Weaver](https://twitter.com/JavaFXpert) - Java/JavaFX/IoT developer, author and speaker.
* [Java EE](https://twitter.com/Java_EE/) - Official Java EE Twitter account.
@ -959,14 +1002,14 @@ See [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium)
*Sites to read.*
* [Google Java Style](https://google.github.io/styleguide/javaguide.html)
* [InfoQ](http://www.infoq.com/)
* [Java Algorithms and Clients](http://algs4.cs.princeton.edu/code/)
* [Java, SQL, and jOOQ](http://blog.jooq.org/)
* [InfoQ](https://www.infoq.com/)
* [Java Algorithms and Clients](https://algs4.cs.princeton.edu/code/)
* [Java, SQL, and jOOQ](https://blog.jooq.org/)
* [Java.net](https://community.oracle.com/community/java)
* [Javalobby](https://dzone.com/java-jdk-development-tutorials-tools-news)
* [JavaWorld](http://www.javaworld.com/)
* [JavaWorld](https://www.javaworld.com/)
* [JAXenter](https://jaxenter.com/)
* [RebelLabs](http://zeroturnaround.com/rebellabs/)
* [RebelLabs](https://zeroturnaround.com/rebellabs/)
* [The Takipi Blog](http://blog.takipi.com/)
* [TheServerSide.com](http://www.theserverside.com/)
* [Vanilla Java](https://vanilla-java.github.io/)