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CONTRIBUTING.md
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# Contribution Guidelines # Contribution Guidelines
Unfortunately, not every library/tool/framework can be considered. The aim of the list is to provide a concise list of noteworthy modern software. This means that suggested software is either Unfortunately, not every library/tool/framework can be considered. This list aims to provide a concise list of noteworthy modern software. This means that suggested software is:
(a) widely recommended regardless of personal opinion (a) widely recommended, regardless of personal opinion
(b) highly discussed in the community due to its innovative nature (b) highly discussed in the community due to its innovative nature
@ -16,9 +16,9 @@ There are two required criteria for a pull request:
2. If an entry does not meet conditions *(a)* to *(d)* there has to be an explanation either in the description or the pull request why it should be added to the list. 2. If an entry does not meet conditions *(a)* to *(d)* there has to be an explanation either in the description or the pull request why it should be added to the list.
Self-promotion is frowned upon and will be reviewed critically but the suggestion will of course be approved if they criteria match. Self-promotion is frowned upon and viewed critically, but your suggestion will of course be approved if the criteria match.
If a certain entry does not get accepted, you should first look if there has been a discussion before. These discussions are in the issue section and normally marked with the question tag. If there hasn't been such a topic, you are free to create a new issue tagged as question. If your entry isn't accepted, please check the [Issues](https://github.com/akullpp/awesome-java/issues) for items marked with the "question" tag to see if it had been previously discussed. If nothing comes up, feel free to create a new issue, adding the "question" tag.
Furthermore, please ensure your pull request follows the following guidelines: Furthermore, please ensure your pull request follows the following guidelines:
@ -26,7 +26,7 @@ Furthermore, please ensure your pull request follows the following guidelines:
* Please make an individual pull request for each suggestion. * Please make an individual pull request for each suggestion.
* Use the following format for libraries: \[LIBRARY\]\(LINK\) - DESCRIPTION. * Use the following format for libraries: \[LIBRARY\]\(LINK\) - DESCRIPTION.
* Entries should be sorted in ascending alphabetical order, i.e. a to z. * Entries should be sorted in ascending alphabetical order, i.e. a to z.
* New categories, or improvements to the existing categorization are welcome. * New categories or improvements to the existing categorization are welcome.
* Keep descriptions short, simple and unbiased. * Keep descriptions short, simple and unbiased.
* End all descriptions with a full stop/period. * End all descriptions with a full stop/period.
* Check your spelling and grammar. * Check your spelling and grammar.

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@ -83,13 +83,13 @@ A curated list of awesome Java frameworks, libraries and software.
* [Apache Hadoop](http://hadoop.apache.org/) - Storage and large-scale processing of data-sets on clusters of commodity hardware. * [Apache Hadoop](http://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 OpenNLP](https://opennlp.apache.org/) - Toolkit for common tasks like tokenization.
* [Apache Velocity](http://velocity.apache.org/) - Templates for HTML pages, emails or source code generation in general. * [Apache Velocity](http://velocity.apache.org/) - Templates for HTML pages, emails or source code generation in general.
* [FreeMarker](http://freemarker.org/) - General templating engine without any heavyweight or opinionated dependencies. * [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://glassfish.java.net/) - Application server and reference implementation for Java EE, sponsored by Oracle.
* [GWT](http://www.gwtproject.org/) - Toolbox which includes a Java-to-JavaScript compiler for client-side code, XML parser, API for RPC, JUnit integration, internationalization support and widgets for the GUI. * [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.
* [Hamcrest](http://hamcrest.org/JavaHamcrest/) - Matchers that can be combined to create flexible expressions of intent. * [Hamcrest](http://hamcrest.org/JavaHamcrest/) - Matchers that can be combined to create flexible expressions of intent.
* [HornetQ](http://hornetq.jboss.org/) - Clear, concise, modular and made to be embedded. * [HornetQ](http://hornetq.jboss.org/) - Clear, concise, modular and made to be embedded.
* [Hudson](http://hudson-ci.org/) - Continuous integration server still in active development. * [Hudson](http://hudson-ci.org/) - Continuous integration server still in active development.
* [Java Modeling Language (JML)](http://www.eecs.ucf.edu/~leavens/JML/) - Behavioral interface specification language that can be used to specify the behavior of code modules. It combines the design by contract approach of Eiffel and 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. * [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. * [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 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 Pages](https://jsp.java.net/) - Common templating for websites with custom tag libraries.
@ -105,43 +105,43 @@ A curated list of awesome Java frameworks, libraries and software.
* [Dozer](https://github.com/DozerMapper/dozer/) - Mapper that copies data from one object to another, using annotations, API or XML configuration. * [Dozer](https://github.com/DozerMapper/dozer/) - Mapper that copies data from one object to another, using annotations, API or XML configuration.
* [JMapper](http://jmapper-framework.github.io/jmapper-core/) - Using byte code manipulation for lightning fast mapping. Supporting annotations, API or XML configuration. * [JMapper](http://jmapper-framework.github.io/jmapper-core/) - Using byte code manipulation for lightning fast mapping. Supporting annotations, API or XML configuration.
* [MapStruct](https://github.com/mapstruct/mapstruct) - Code generator which simplifies mappings between different bean types, based on a convention over configuration approach. * [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) - ModelMapper is an intelligent object mapping library that automatically maps objects to each other. * [ModelMapper](https://github.com/jhalterman/modelmapper) - Intelligent object mapping library that automatically maps objects to each other.
* [Orika](https://github.com/orika-mapper/orika) - Orika is a Java Bean mapping framework that recursively copies (among other capabilities) data from one object to another. * [Orika](https://github.com/orika-mapper/orika) - Java Bean mapping framework that recursively copies (among other capabilities) data from one object to another.
* [Selma](https://github.com/xebia-france/selma) - Stupid Simple Statically Linked Mapper. Selma is an Annotation Processor Based bean mapper. * [Selma](https://github.com/xebia-france/selma) - Annotation processor-based bean mapper.
## Build ## Build
*Tools which handle the build cycle and dependencies of an application.* *Tools that handle the build cycle and dependencies of an application.*
* [Apache Maven](http://maven.apache.org/) - Declarative build and dependency management which favors convention over configuration. It might be preferable to Apache Ant which uses a rather procedural approach and can be difficult to maintain. * [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) - Build tool from Google that builds code quickly and reliably. * [Bazel](http://bazel.io) - Tool from Google that builds code quickly and reliably.
* [Gradle](http://gradle.org/) - Incremental builds which are programmed via Groovy instead of declaring XML. Works well with Maven's dependency management. * [Gradle](http://gradle.org/) - Incremental builds programmed via Groovy instead of declaring XML. Works well with Maven's dependency management.
## Bytecode Manipulation ## Bytecode Manipulation
*Libraries to manipulate bytecode programmatically.* *Libraries to manipulate bytecode programmatically.*
* [ASM](http://asm.ow2.org/) - All purpose, low level, bytecode manipulation and analysis. * [ASM](http://asm.ow2.org/) - All-purpose, low-level bytecode manipulation and analysis.
* [Byte Buddy](http://bytebuddy.net/) - Further simplifies bytecode generation with a fluent API. * [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](http://byteman.jboss.org/) - Manipulate bytecode at runtime via DSL (rules); mainly for testing/troubleshooting.
* [cglib](https://github.com/cglib/cglib) - Bytecode generation library. * [cglib](https://github.com/cglib/cglib) - Bytecode generation library.
* [Javassist](http://jboss-javassist.github.io/javassist/) - Tries to simplify the editing of bytecode. * [Javassist](http://jboss-javassist.github.io/javassist/) - Tries to simplify bytecode editing.
## Caching ## Caching
*Libraries which provide caching facilities.* *Libraries that provide caching facilities.*
* [Caffeine](https://github.com/ben-manes/caffeine) - High performance, near optimal caching library. * [Caffeine](https://github.com/ben-manes/caffeine) - High-performance, near-optimal caching library.
* [Ehcache](http://www.ehcache.org/) - Distributed general purpose cache. * [Ehcache](http://www.ehcache.org/) - Distributed general-purpose cache.
## Cluster Management ## Cluster Management
*Frameworks which can dynamically manage applications inside of a cluster.* *Frameworks that can dynamically manage applications inside of a cluster.*
* [Apache Aurora](http://aurora.apache.org/) - Apache Aurora is a Mesos framework for long-running services and cron jobs. * [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 Mesos](http://mesos.apache.org/) - Abstracts CPU, memory, storage, and other compute resources away from machines.
* [Singularity](http://getsingularity.com/) - Singularity is a Mesos framework that makes deployment and operations easy. It supports web services, background workers, scheduled jobs, and one-off tasks. * [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 ## Code Analysis
@ -159,11 +159,11 @@ A curated list of awesome Java frameworks, libraries and software.
## Code Coverage ## Code Coverage
*Frameworks and tools that enable collection of code coverage metrics for test suites.* *Frameworks and tools that enable code coverage metrics collection for test suites.*
* [Clover](https://www.atlassian.com/software/clover/overview) - Proprietary code coverage tool by Atlassian that relies on source-code instrumentation, instead of bytecode instrumentation. * [Clover](https://www.atlassian.com/software/clover/overview) - Proprietary code coverage tool by Atlassian that 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; GPLv2 licensed. * [Cobertura](http://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; prominently used by EclEmma, the Eclipse code-coverage plugin. * [JaCoCo](http://eclemma.org/jacoco/) - Framework that enables collection of code coverage metrics, using both offline and runtime bytecode instrumentation.
## Code Generators ## Code Generators
@ -171,20 +171,20 @@ A curated list of awesome Java frameworks, libraries and software.
* [ADT4J](https://github.com/sviperll/adt4j) - JSR-269 code generator for algebraic data types. * [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. * [Auto](https://github.com/google/auto) - Generates factory, service, and value classes.
* [FreeBuilder](https://github.com/google/FreeBuilder) - Automatic generation of the Builder pattern. * [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](http://immutables.github.io/) - Annotation processors to generate simple, safe and consistent value objects.
* [JHipster](https://github.com/jhipster/generator-jhipster) - Yeoman source code generator for Spring Boot and AngularJS. * [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. * [Joda-Beans](http://www.joda.org/joda-beans/) - Small framework that adds queryable properties to Java, enhancing JavaBeans.
* [Lombok](https://projectlombok.org/) - Code generator which aims to reduce verbosity. * [Lombok](https://projectlombok.org/) - Code generator that aims to reduce verbosity.
## Command-line Argument Parsers ## Command-line Argument Parsers
*Libraries that make it easy to parse command line options, arguments, etc.* *Libraries that make it easy to parse command line options, arguments, etc.*
* [Airline](https://github.com/airlift/airline) - Annotation-based framework for parsing Git like command line arguments. * [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 like arguments similar to javac. * [args4j](http://args4j.kohsuke.org/) - Small library to parse command-line arguments.
* [JCommander](http://jcommander.org/) - Command line arguments parsing framework with custom types and validation via implementing interfaces. * [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. Does not use annotations, uses a fluent API instead. * [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.
## Compiler-compiler ## Compiler-compiler
@ -199,28 +199,28 @@ A curated list of awesome Java frameworks, libraries and software.
* [config](https://github.com/typesafehub/config) - Configuration library for JVM languages. * [config](https://github.com/typesafehub/config) - Configuration library for JVM languages.
* [ini4j](http://ini4j.sourceforge.net/) - Provides an API for handling Windows' INI files. * [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.
* [owner](https://github.com/lviggiano/owner) - Reduces boilerplate of properties. * [owner](https://github.com/lviggiano/owner) - Reduces boilerplate of properties.
- [KAConf](https://github.com/mariomac/kaconf) - Annotation-based configuration system for Java and Kotlin.
## Constraint Satisfaction Problem Solver ## Constraint Satisfaction Problem Solver
*Libraries that help on implementing optimization and satisfiability problems.* *Libraries that help with implementing optimization and satisfiability problems.*
* [Choco](http://choco-solver.org/) - Off-the-shelf constraint satisfaction problem solver, which uses constraint programming techniques. * [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. * [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](http://www.optaplanner.org/) - Business planning and resource scheduling optimization solver.
## Continuous Integration ## Continuous Integration
*Tools which support continuously building, testing and releasing applications.* *Tools that support continuously building, testing and releasing applications.*
* [Bamboo ![c]](https://www.atlassian.com/software/bamboo) - Atlassian's solution with good integration of their other products. You can either apply for an open-source license or buy it. * [Bamboo ![c]](https://www.atlassian.com/software/bamboo) - Atlassian's solution with good integration of their other products. You can either apply for an open-source license or buy it.
* [Concourse](https://concourse.ci/) - Provides dockerized pipeline with configuration that can be saved in version control. * [Concourse](https://concourse.ci/) - Provides dockerized pipeline with configuration that can be saved in version control.
* [fabric8](http://fabric8.io/) - Integration platform for containers. * [fabric8](http://fabric8.io/) - Integration platform for containers.
* [Go](https://www.thoughtworks.com/go/) - ThoughtWork's open-source solution. * [Go](https://www.thoughtworks.com/go/) - ThoughtWorks' open-source solution.
* [Jenkins](http://jenkins-ci.org/) - Provides server-based deployment services. * [Jenkins](http://jenkins-ci.org/) - Provides server-based deployment services.
* [Semaphore](https://semaphoreci.com) - Hosted CI/CD service, free for open-source and 100 private builds with native Docker support. * [Semaphore](https://semaphoreci.com) - Hosted CI/CD service, free for open-source and 100 private builds with native Docker support.
* [TeamCity](http://www.jetbrains.com/teamcity/) - JetBrain's CI solution with a free version. * [TeamCity](http://www.jetbrains.com/teamcity/) - JetBrains' CI solution with a free version.
* [Travis](https://travis-ci.org) - Hosted service often used for open-source projects. * [Travis](https://travis-ci.org) - Hosted service often used for open-source projects.
## CSV ## CSV
@ -230,46 +230,49 @@ A curated list of awesome Java frameworks, libraries and software.
* [jackson-dataformat-csv](https://github.com/FasterXML/jackson-dataformat-csv) - Jackson extension for reading and writing CSV. * [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. * [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](http://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 CSV. Also comes with parsers for TSV and fixed width records. * [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 ## Database
*Everything which simplifies interactions with the database.* *Everything that simplifies interactions with the database.*
* [Apache Hive](https://hive.apache.org/) - Data warehouse infrastructure built on top of Hadoop. * [Apache Hive](https://hive.apache.org/) - Data warehouse infrastructure built on top of Hadoop.
* [Apache Phoenix](http://phoenix.apache.org/) - High performance relational database layer over HBase for low latency applications. * [Apache Phoenix](http://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. * [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. * [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. * [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. * [Flyway](https://flywaydb.org/) - Simple database migration tool.
* [H2](http://h2database.com/) - Small SQL Database notable for its in-memory functionality. * [H2](http://h2database.com/) - Small SQL database notable for its in-memory functionality.
* [HikariCP](https://github.com/brettwooldridge/HikariCP) - High performance JDBC connection pool. * [HikariCP](https://github.com/brettwooldridge/HikariCP) - High-performance JDBC connection pool.
* [JDBI](http://jdbi.org/) - Convenient abstraction of JDBC. * [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. * [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. * [jetcd](https://github.com/justinsb/jetcd) - A client library for etcd.
* [jOOQ](http://www.jooq.org/) - Generates typesafe code based on SQL schema. * [jOOQ](http://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. * [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. * [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 which requires no installation or external dependencies. * [MariaDB4j](https://github.com/vorburger/MariaDB4j/) - Launcher for MariaDB that requires no installation or external dependencies.
* [Presto](https://github.com/prestodb/presto) - Distributed SQL query engine for big data. * [Presto](https://github.com/prestodb/presto) - Distributed SQL query engine for big data.
* [Querydsl](http://www.querydsl.com/) - Typesafe unified queries. * [Querydsl](http://www.querydsl.com/) - Typesafe unified queries.
* [Realm](https://github.com/realm/realm-java) - Mobile database to run directly inside phones, tablets or wearables. * [Realm](https://github.com/realm/realm-java) - Mobile database to run directly inside phones, tablets or wearables.
* [Redisson](https://github.com/mrniko/redisson) - Allows for distributed and scalable data structures on top of a Redis server. * [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, perform queries and updates from any platform that uses Java.
* [Speedment](https://github.com/speedment/speedment) - Database access library that utilizes the Java 8 Stream API for querying. * [Speedment](https://github.com/speedment/speedment) - Database access library that utilizes the Java 8 Stream API for querying.
* [sql2o](http://sql2o.org/) - Thin JDBC wrapper that simplifies database access and provides simple mapping of ResultSets to POJOs. * [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 which offers advanced performance monitoring capabilities. * [Vibur DBCP](http://www.vibur.org/) - JDBC connection pool library with advanced performance monitoring capabilities.
## Data structures ## Data Structures
*Efficient and specific data structures.* *Efficient and specific data structures.*
* [Apache Avro](https://avro.apache.org/) - Data interchange format featuring among others: dynamic typing, untagged data, absence of manually assigned IDs. * [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 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 the Dremel paper by Google. * [Apache Parquet](http://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. * [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 file.
* [Persistent Collection](http://pcollections.org/) - Persistent and immutable analogue of the Java Collections Framework. * [Persistent Collection](http://pcollections.org/) - Persistent and immutable analogue of the Java Collections Framework.
* [Protobuf](https://github.com/google/protobuf) - Google's data interchange format. * [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. * [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.
* [Wire](https://github.com/square/wire) - Clean, lightweight protocol buffers. * [Wire](https://github.com/square/wire) - Clean, lightweight protocol buffers.
## Date and Time ## Date and Time
@ -288,9 +291,10 @@ A curated list of awesome Java frameworks, libraries and software.
* [Apache DeltaSpike](https://deltaspike.apache.org/) - CDI extension framework. * [Apache DeltaSpike](https://deltaspike.apache.org/) - CDI extension framework.
* [Dagger2](http://google.github.io/dagger/) - Compile-time injection framework without reflection. * [Dagger2](http://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. * [Governator](https://github.com/Netflix/governator) - Extensions and utilities that enhance Google Guice.
* [Guice](https://github.com/google/guice) - Lightweight but powerful framework that completes Dagger. * [Guice](https://github.com/google/guice) - Lightweight and opinionated framework that completes Dagger.
* [HK2](https://hk2.java.net) - Light-weight and dynamic dependency injection framework. * [HK2](https://hk2.java.net) - Lightweight and dynamic dependency injection framework.
## Development ## Development
@ -309,17 +313,20 @@ A curated list of awesome Java frameworks, libraries and software.
*Libraries and frameworks for writing distributed and fault-tolerant applications.* *Libraries and frameworks for writing distributed and fault-tolerant applications.*
* [Akka](http://akka.io) - Toolkit and runtime for building concurrent, distributed, and fault tolerant event-driven applications. * [Akka](http://akka.io) - Toolkit and runtime for building concurrent, distributed, fault-tolerant and event-driven applications.
* [Apache Storm](http://storm.apache.org/) - Realtime computation system. * [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 ZooKeeper](http://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. * [Atomix](http://atomix.io/atomix/) - Fault-tolerant distributed coordination framework.
* [Axon Framework](http://www.axonframework.org/) - Framework for creating CQRS applications. * [Axon Framework](http://www.axonframework.org/) - Framework for creating CQRS applications.
* [Copycat](http://atomix.io/copycat/) - Fault-tolerant state machine replication framework. * [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.
* [Hazelcast ![c]](http://hazelcast.org/) - Highly scalable in-memory datagrid with a free open-source version. * [Hazelcast ![c]](http://hazelcast.org/) - Highly scalable in-memory datagrid with a free open-source version.
* [Hystrix](https://github.com/Netflix/Hystrix) - Provides latency and fault tolerance. * [Hystrix](https://github.com/Netflix/Hystrix) - Provides latency and fault tolerance.
* [JGroups](http://www.jgroups.org/) - Toolkit for reliable messaging and creating clusters. * [JGroups](http://www.jgroups.org/) - Toolkit for reliable messaging and creating clusters.
* [Orbit](http://www.orbit.cloud/) - Virtual Actors, adding another level of abstraction to traditional actors. * [Orbit](http://www.orbit.cloud/) - Virtual actors; adds another level of abstraction to traditional actors.
* [Ribbon](https://github.com/Netflix/ribbon) - Client side IPC library that is battle-tested in cloud.
* [Quasar](http://www.paralleluniverse.co/quasar/) - Lightweight threads and actors for the JVM. * [Quasar](http://www.paralleluniverse.co/quasar/) - Lightweight threads and actors for the JVM.
* [Zuul](https://github.com/Netflix/zuul) - A gateway service that provides dynamic routing, monitoring, resiliency, security, and more.
## Distributed Databases ## Distributed Databases
@ -327,19 +334,19 @@ A curated list of awesome Java frameworks, libraries and software.
* [Apache Cassandra](http://cassandra.apache.org) - Column-oriented and providing high availability with no single point of failure. * [Apache Cassandra](http://cassandra.apache.org) - Column-oriented and providing high availability with no single point of failure.
* [Apache HBase](http://hbase.apache.org) - Hadoop database for big data. * [Apache HBase](http://hbase.apache.org) - Hadoop database for big data.
* [Druid](http://druid.io) - Real-time and historical OLAP data store that excel at aggregation and approximation queries. * [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 datastore used for caching. * [Infinispan](http://infinispan.org/) - Highly concurrent key/value datastore used for caching.
* [OpenTSDB](http://opentsdb.net) - Scalable and distributed time series database written on top of Apache HBase. * [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. * [OrientDB](https://orientdb.com/orientdb/) - Embeddable distributed database written on top of Hazelcast.
## Distribution ## Distribution
*Tools which handle the distribution of applications in native formats.* *Tools that handle the distribution of applications in native formats.*
* [Bintray ![c]](https://bintray.com/) - Version control for binaries which handles the publishing. Can also be used with Maven or Gradle and has a free plan for open-source software or several business plans. * [Bintray ![c]](https://bintray.com/) - Version control for binaries that handle publishing. Compatible with Maven or Gradle, and has a free plan for open-source software as well as several business plans.
* [Boxfuse](https://boxfuse.com) - Deployment of JVM application to AWS using the principles of Immutable Infrastructure. * [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. * [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](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.
* [IzPack](http://izpack.org/) - Setup authoring tool for cross-platform deployments. * [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. * [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]](http://www.sonatype.com/nexus/solution-overview) - Binary management with proxy and caching capabilities.
@ -352,7 +359,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [Apache POI](http://poi.apache.org/) - Supports OOXML (XLSX, DOCX, PPTX) as well as OLE2 (XLS, DOC or PPT). * [Apache POI](http://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. * [documents4j](http://documents4j.com) - API for document format conversion using third-party converters such as MS Word.
* [docx4j](http://www.docx4java.org/trac/docx4j) - Creating and manipulating Microsoft Open XML files. * [docx4j](http://www.docx4java.org/trac/docx4j) - Create and manipulate Microsoft Open XML files.
## Formal Verification ## Formal Verification
@ -360,10 +367,10 @@ A curated list of awesome Java frameworks, libraries and software.
* [CATG](https://github.com/ksen007/janala2) - Concolic unit testing engine. Automatically generates unit tests using formal methods. * [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. * [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/) - Daikon detects likely program invariants and can generate JML specs based on those invariants. * [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. * [Java Path Finder (JPF)](http://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 nonconformances between code and JML specification through the feedback-directed random tests generation, and suggests a likely cause for each nonconformance detected. * [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/) - The KeY System is a 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. * [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. * [OpenJML](http://openjml.github.io/) - Translates JML specifications into SMT-LIB format and passes the proof problems implied by the program to backend solvers.
## Functional Programming ## Functional Programming
@ -374,9 +381,9 @@ A curated list of awesome Java frameworks, libraries and software.
* [derive4j](https://github.com/derive4j/derive4j) - Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, morphisms. * [derive4j](https://github.com/derive4j/derive4j) - Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, morphisms.
* [Fugue](https://bitbucket.org/atlassian/fugue) - Functional extensions to Guava. * [Fugue](https://bitbucket.org/atlassian/fugue) - Functional extensions to Guava.
* [Functional Java](http://www.functionaljava.org) - Implements numerous basic and advanced programming abstractions that assist composition-oriented development. * [Functional Java](http://www.functionaljava.org) - Implements numerous basic and advanced programming abstractions that assist composition-oriented development.
* [jOOλ](https://github.com/jOOQ/jOOL) - Extension to Java 8 which aims to fix gaps in lambda, providing numerous missing types and a rich set of sequential Stream API additions. * [jOOλ](https://github.com/jOOQ/jOOL) - Extension to Java 8 that aims to fix gaps in lambda by providing numerous missing types and a rich set of sequential Stream API additions.
* [protonpack](https://github.com/poetix/protonpack) - Collection of stream utilities. * [protonpack](https://github.com/poetix/protonpack) - Collection of stream utilities.
* [StreamEx](https://github.com/amaembo/streamex) - Enhancing Java 8 Streams. * [StreamEx](https://github.com/amaembo/streamex) - Enhances Java 8 Streams.
* [Vavr](http://www.vavr.io/) - Functional component library that provides persistent data types and functional control structures. * [Vavr](http://www.vavr.io/) - Functional component library that provides persistent data types and functional control structures.
## Game Development ## Game Development
@ -397,9 +404,9 @@ A curated list of awesome Java frameworks, libraries and software.
* [GeoTools](http://geotools.org/) - Library that provides tools for geospatial data. * [GeoTools](http://geotools.org/) - Library that provides tools for geospatial data.
* [GraphHopper](https://github.com/graphhopper/graphhopper) - Road routing engine. Used as Java library or standalone web service. * [GraphHopper](https://github.com/graphhopper/graphhopper) - Road routing engine. Used as Java library or standalone web service.
* [H2GIS](http://www.h2gis.org/) - A spatial extension of the H2 database. * [H2GIS](http://www.h2gis.org/) - A spatial extension of the H2 database.
* [Jgeohash](http://astrapi69.github.io/jgeohash/) - Library that can assist Java developers in using the GeoHash algorithm. * [Jgeohash](http://astrapi69.github.io/jgeohash/) - Library for using the GeoHash algorithm.
* [Mapsforge](https://github.com/mapsforge/mapsforge/) - Software for the rendering of maps based on OpenStreetMap data. * [Mapsforge](https://github.com/mapsforge/mapsforge/) - Map rendering based on OpenStreetMap data.
* [Spatial4j](https://github.com/locationtech/spatial4j/) - General purpose spatial/geospatial ASL licensed open-source Java library. * [Spatial4j](https://github.com/locationtech/spatial4j/) - General purpose spatial/geospatial library.
## GUI ## GUI
@ -407,7 +414,7 @@ A curated list of awesome Java frameworks, libraries and software.
* [JavaFX](http://www.oracle.com/technetwork/java/javase/overview/javafx-overview-2158620.html) - The successor of Swing. * [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. * [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 (SWT) is a graphical widget toolkit for use with the Java platform. * [SWT](http://www.eclipse.org/swt/) - The Standard Widget Toolkit, a graphical widget toolkit.
## High Performance ## High Performance
@ -432,31 +439,33 @@ A curated list of awesome Java frameworks, libraries and software.
*Integrated development environments that try to simplify several aspects of development.* *Integrated development environments that try to simplify several aspects of development.*
* [Eclipse](http://www.eclipse.org/) - Established, open-souce project with support for lots of plugins and languages. * [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 a lot of JVM languages and provides good options for Android development. The commercial edition targets the enterprise sector. * [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.
* [NetBeans](https://netbeans.org/) - Provides integration for several Java SE and EE features from database access to HTML5. * [NetBeans](https://netbeans.org/) - Provides integration for several Java SE and EE features, from database access to HTML5.
## Imagery ## Imagery
*Libraries that assist with the creation, evaluation or manipulation of graphical images.* *Libraries that assist with the creation, evaluation or manipulation of graphical images.*
* [Imgscalr](https://github.com/thebuzzmedia/imgscalr) - Simple and efficient hardware-accelerated image-scaling library implemented in pure Java 2D. * [Imgscalr](https://github.com/thebuzzmedia/imgscalr) - Simple, efficient and hardware-accelerated image-scaling library implemented in pure Java 2D.
* [Tess4J](https://github.com/nguyenq/tess4j) - A JNA wrapper for Tesseract OCR API. * [Tess4J](https://github.com/nguyenq/tess4j) - A JNA wrapper for Tesseract OCR API.
* [Thumbnailator](https://github.com/coobird/thumbnailator) - Thumbnailator is a high-quality thumbnail generation library for Java. * [Thumbnailator](https://github.com/coobird/thumbnailator) - High-quality thumbnail generation library.
* [TwelveMonkeys](https://github.com/haraldk/TwelveMonkeys) - Collection of plugins which extend the number of supported image file formats. * [TwelveMonkeys](https://github.com/haraldk/TwelveMonkeys) - Collection of plugins that extend the number of supported image file formats.
* [ZXing](https://github.com/zxing/zxing) - Multi-format 1D/2D barcode image processing library. * [ZXing](https://github.com/zxing/zxing) - Multi-format 1D/2D barcode image processing library.
## JSON ## JSON
*Libraries for serializing and deserializing JSON to and from Java objects.* *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. * [HikariJSON](https://github.com/brettwooldridge/HikariJSON) - High-performance JSON parser, 2x faster than Jackson.
* [Genson](http://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. * [Gson](https://github.com/google/gson) - Serializes objects to JSON and vice versa. Good performance with on-the-fly usage.
* [Jackson-datatype-money](https://github.com/zalando/jackson-datatype-money) - Open-source Jackson module to support JSON serialization and deserialization of JavaMoney data types. * [Jackson-datatype-money](https://github.com/zalando/jackson-datatype-money) - Open-source Jackson module to support JSON serialization and deserialization of JavaMoney data types.
* [Jackson](http://wiki.fasterxml.com/JacksonHome) - Similar to GSON but has performance gains if you need to instantiate the library more often. * [Jackson](http://wiki.fasterxml.com/JacksonHome) - Similar to GSON, but offers performance gains if you need to instantiate the library more often.
* [JSON-io](https://github.com/jdereg/json-io) - Convert Java to JSON. Convert JSON to Java. Pretty print JSON. Java JSON serializer. * [JSON-io](https://github.com/jdereg/json-io) - Convert Java to JSON. Convert JSON to Java. Pretty print JSON. Java JSON serializer.
* [jsoniter](http://jsoniter.com) - Fast and flexible library with iterator and lazy parsing API. * [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. * [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.
## JSON Processing ## JSON Processing
@ -464,17 +473,17 @@ A curated list of awesome Java frameworks, libraries and software.
* [fastjson](https://github.com/alibaba/fastjson) - Very fast processor with no additional dependencies and full data binding. * [fastjson](https://github.com/alibaba/fastjson) - Very fast processor with no additional dependencies and full data binding.
* [Jolt](https://github.com/bazaarvoice/jolt) - JSON to JSON transformation tool. * [Jolt](https://github.com/bazaarvoice/jolt) - JSON to JSON transformation tool.
* [JsonPath](https://github.com/jayway/JsonPath) - Extract data from JSON using XPATH like syntax. * [JsonPath](https://github.com/jayway/JsonPath) - Extract data from JSON using XPATH-like syntax.
* [JsonSurfer](https://github.com/jsurfer/JsonSurfer) - Streaming JsonPath processor dedicated to processing big and complicated JSON data. * [JsonSurfer](https://github.com/jsurfer/JsonSurfer) - Streaming JsonPath processor dedicated to processing big and complicated JSON data.
## JVM and JDK ## JVM and JDK
*Current implementations of the JVM/JDK.* *Current implementations of the JVM/JDK.*
* [Avian](https://github.com/ReadyTalk/avian) - JVM with both a JIT & AOT modes. Includes an iOS port. * [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. * [JDK 9](https://jdk9.java.net/) - Early access releases of JDK 9.
* [OpenJDK](http://openjdk.java.net/) - Open-source implementation for Linux. * [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. * [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 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](http://www.azul.com/downloads/zulu/) - OpenJDK builds for Windows, Linux, and Mac OS X through Java 8.
@ -488,31 +497,31 @@ A curated list of awesome Java frameworks, libraries and software.
* [Logback](http://logback.qos.ch/) - Robust logging library with interesting configuration options via Groovy. * [Logback](http://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. * [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. * [Logstash](https://www.elastic.co/products/logstash) - Tool for managing log files.
* [SLF4J](http://www.slf4j.org/) - Abstraction layer which is to be used with an implementation. * [SLF4J](http://www.slf4j.org/) - Abstraction layer/simple logging facade.
* [tinylog](http://www.tinylog.org/) - Lightweight logging framework with static logger class. * [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. * [Tracer](https://github.com/zalando/tracer) - Call tracing and log correlation in distributed systems.
## Machine Learning ## Machine Learning
*Tools that provide specific statistical algorithms which allow learning from data.* *Tools that provide specific statistical algorithms for learning from data.*
* [Apache Flink](https://flink.apache.org/) - Fast and reliable large-scale data processing engine. * [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 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](http://spark.apache.org/) - Data analytics cluster-computing framework.
* [DatumBox](http://www.datumbox.com) - Provides several algorithms and pre-trained models for natural language processing. * [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. * [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. * [Deeplearning4j](http://deeplearning4j.org/) - Distributed and multi-threaded deep learning library.
* [H2O](http://www.h2o.ai/) - Analytics engine for statistics over big data. * [H2O](http://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. * [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) - A framework for building real-time large scale machine learning applications, which also includes end-to-end applications for collaborative filtering, classification, regression, and clustering. * [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. * [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. * [Weka](http://www.cs.waikato.ac.nz/ml/weka/) - Collection of algorithms for data mining tasks ranging from pre-processing to visualization.
## Messaging ## Messaging
*Tools that help to send messages between clients in order to ensure protocol independency.* *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. * [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 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 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 Kafka](http://kafka.apache.org/) - High-throughput distributed messaging system.
@ -526,8 +535,8 @@ A curated list of awesome Java frameworks, libraries and software.
*Everything else.* *Everything else.*
* [Codename One](https://www.codenameone.com/) - Cross platform solution for writing native mobile (iOS, Android, etc.) * [Codename One](https://www.codenameone.com/) - Cross-platform solution for writing native mobile (iOS, Android, etc.) apps.
* [CQEngine](https://github.com/npgall/cqengine) - Ultra-fast SQL-like queries on Java collections. * [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. * [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. * [Failsafe](https://github.com/jhalterman/failsafe) - Simple failure handling with retries and circuit breakers.
* [J2ObjC](https://github.com/google/j2objc) - Java to Objective-C translator for porting Android libraries to iOS. * [J2ObjC](https://github.com/google/j2objc) - Java to Objective-C translator for porting Android libraries to iOS.
@ -539,11 +548,11 @@ A curated list of awesome Java frameworks, libraries and software.
* [JPad](http://jpad.io/) - Snippet runner. * [JPad](http://jpad.io/) - Snippet runner.
* [Lanterna](https://github.com/mabe02/lanterna) - Easy console text GUI library similar to curses. * [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. * [LightAdmin](http://lightadmin.org/) - Pluggable CRUD UI library for rapid application development.
* [Membrane Service Proxy](https://github.com/membrane/service-proxy) - An open source, reverse proxy framework written in Java. * [Membrane Service Proxy](https://github.com/membrane/service-proxy) - An open-source, reverse proxy framework written in Java.
* [Modern Java - A Guide to Java 8](https://github.com/winterbe/java8-tutorial) - Popular Java 8 guide. * [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. * [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. * [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 the POM model to be written in dialects other than XML. * [Polyglot for Maven](https://github.com/takari/polyglot-maven/) - Extensions for Maven 3.3.1+ that allow the POM model to be written in dialects other than XML.
* [TypeTools](https://github.com/jhalterman/typetools) - Tools for resolving generic types. * [TypeTools](https://github.com/jhalterman/typetools) - Tools for resolving generic types.
## Microservice ## Microservice
@ -551,31 +560,32 @@ A curated list of awesome Java frameworks, libraries and software.
*Tools for managing microservices, i.e. creation, coordination or discovery.* *Tools for managing microservices, i.e. creation, coordination or discovery.*
* [Apollo](https://spotify.github.io/apollo/) - Libraries for writing composable microservices. * [Apollo](https://spotify.github.io/apollo/) - Libraries for writing composable microservices.
* [consul-api](https://github.com/Ecwid/consul-api) - Client for the [Consul](https://www.consul.io/) API a distributed, highly available and datacenter-aware registry/discovery service. * [consul-api](https://github.com/Ecwid/consul-api) - Client for the [Consul](https://www.consul.io/) API: a distributed, highly available and datacenter-aware registry/discovery service.
* [Eureka](https://github.com/Netflix/eureka) - REST based service registry for resilient load balancing and failover. * [Eureka](https://github.com/Netflix/eureka) - REST-based service registry for resilient load balancing and failover.
* [Lagom](https://www.lightbend.com/lagom) - Framework for creating microservice-based systems. * [Lagom](https://www.lightbend.com/lagom) - Framework for creating microservice-based systems.
* [restQL-core](https://github.com/B2W-BIT/restQL-core) - Microservice query language that fetches information from multiple services. * [restQL-core](https://github.com/B2W-BIT/restQL-core) - Microservice query language that fetches information from multiple services.
* [SnopEE](https://github.com/ivargrimstad/snoop) - Discovery service for Java EE microservices.
## Monitoring ## Monitoring
*Tools that monitor applications in production.* *Tools that monitor applications in production.*
* [AppDynamics ![c]](https://www.appdynamics.com/) - Performance monitor. * [AppDynamics ![c]](https://www.appdynamics.com/) - Performance monitor.
* [Glowroot](https://glowroot.org/) - Open source Java APM. * [Glowroot](https://glowroot.org/) - Open-source Java APM.
* [Automon](https://github.com/stevensouza/automon) - Combines the power of AOP with monitoring and/or logging tools.
* [Instrumental ![c]](https://instrumentalapp.com) - Real-time Java application performance monitoring. A commercial service with free development accounts. * [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. * [JavaMelody](https://github.com/javamelody/javamelody) - Performance monitoring and profiling.
* [jmxtrans](https://github.com/jmxtrans/jmxtrans/) - Tool to connect to multiple JVMs and to query them for their attributes via JMX. Its query language is based on JSON, which allows non-Java programmers to access the JVMs attributes. Likewise, this tool supports different output writes, including Graphite, Ganglia, StatsD, among others. * [jmxtrans](https://github.com/jmxtrans/jmxtrans/) - Connect to multiple JVMs and query them for their attributes via JMX. Its query language is based on JSON, which allows non-Java programmers to access the JVM attributes. Supports different output writes, including Graphite, Ganglia, and StatsD.
* [Jolokia](https://jolokia.org/) - JMX over REST. * [Jolokia](https://jolokia.org/) - JMX over REST.
* [Kamon](http://www.kamon.io/) - Tool for monitoring applications running on the JVM. * [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 can send them to a database. * [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]](http://newrelic.com/) - Performance monitor.
* [nudge4j](https://github.com/lorenzoongithub/nudge4j) - Remote developer console from the browser for Java 8 via bytecode injection. * [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. * [OverOps ![c]](https://www.overops.com/) - In-production error monitoring and debugging.
* [Pinpoint](https://github.com/naver/pinpoint) - Open source APM tool. * [Pinpoint](https://github.com/naver/pinpoint) - Open-source APM tool.
* [Prometheus](https://prometheus.io/) - Provides a multi-dimensional data model, DSL, autonomous server nodes and much more. * [Prometheus](https://prometheus.io/) - Provides a multi-dimensional data model, DSL, autonomous server nodes and much more.
* [SPM ![c]](https://sematext.com/spm/) - Performance monitor with distributing transaction tracing for JVM apps. * [SPM ![c]](https://sematext.com/spm/) - Performance monitor with distributing transaction tracing for JVM apps.
* [Stagemonitor](https://github.com/stagemonitor/stagemonitor) - Open source performance monitoring and transaction tracing for JVM apps. * [Stagemonitor](https://github.com/stagemonitor/stagemonitor) - Open-source performance monitoring and transaction tracing for JVM apps.
* [Sysmon](https://github.com/palantir/Sysmon) - Lightweight platform monitoring tool for Java VMs.
## Native ## Native
*For working with platform-specific native libraries.* *For working with platform-specific native libraries.*
@ -586,11 +596,11 @@ A curated list of awesome Java frameworks, libraries and software.
## Natural Language Processing ## Natural Language Processing
*Libraries that specialize on processing text.* *Libraries that specialize in processing text.*
* [CoreNLP](http://nlp.stanford.edu/software/corenlp.shtml) - Stanford's CoreNLP provides a set of fundamental tools for tasks like tagging, named entity recognition, sentiment analysis and many more. * [CoreNLP](http://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/) - A collection of re-usable NLP tools for linguistic pre-processing, machine learning, lexical resources, etc. * [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 a variety of tasks ranging from POS tagging to sentiment analysis. * [LingPipe](http://alias-i.com/lingpipe/) - Toolkit for tasks ranging from POS tagging to sentiment analysis.
## Networking ## Networking
@ -598,20 +608,20 @@ 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. * [Async Http Client](https://github.com/AsyncHttpClient/async-http-client) - Asynchronous HTTP and WebSocket client library.
* [Comsat](https://github.com/puniverse/comsat) - Integrates standard Java web-related APIs with Quasar fibers and actors. * [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 used to construct high-concurrency servers. It implements uniform client and server APIs for several protocols, and is protocol agnostic, which simplifies the implementation of new protocols. * [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://grizzly.java.net/) - NIO framework. Used as a network layer in Glassfish.
* [gRPC](https://github.com/grpc/grpc-java) - RPC framework based on protobuf and HTTP/2. * [gRPC](https://github.com/grpc/grpc-java) - RPC framework based on protobuf and HTTP/2.
* [MINA](https://mina.apache.org/) - Abstract event-driven async I/O API for network operations over TCP/IP and UDP/IP via Java NIO. * [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](http://netty.io/) - Framework for building high-performance network applications.
* [Nifty](https://github.com/facebook/nifty) - Implementation of Thrift clients and servers on Netty. * [Nifty](https://github.com/facebook/nifty) - Implementation of Thrift clients and servers on Netty.
* [OkHttp](http://square.github.io/okhttp/) - HTTP+SPDY client. * [OkHttp](http://square.github.io/okhttp/) - HTTP+SPDY client.
* [Riptide](https://github.com/zalando/riptide) - Client-side response routing for Spring's RestTemplate. * [Riptide](https://github.com/zalando/riptide) - Client-side response routing for Spring's RestTemplate.
* [Undertow](http://undertow.io/) - Web server providing both blocking and non-blocking API’s based on NIO. Used as a network layer in WildFly. * [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) - Java library for representing, parsing and encoding URNs as in RFC 2141. * [urnlib](https://github.com/slub/urnlib) - Represent, parse and encode URNs as in RFC 2141.
## ORM ## ORM
*APIs which handle the persistence of objects.* *APIs that handle the persistence of objects.*
* [Apache Cayenne](http://cayenne.apache.org/) - Provides clean, static API for data access. Also includes GUI Modeler for working with database mappings, DB reverse engineering and generation. * [Apache Cayenne](http://cayenne.apache.org/) - Provides clean, static API for data access. Also includes GUI Modeler for working with database mappings, DB reverse engineering and generation.
* [Ebean](http://ebean-orm.github.io/) - Provides simple and fast data access. * [Ebean](http://ebean-orm.github.io/) - Provides simple and fast data access.
@ -623,23 +633,23 @@ A curated list of awesome Java frameworks, libraries and software.
*Java platform as a service.* *Java platform as a service.*
* [AWS Elastic Beanstalk ![c]](https://aws.amazon.com/elasticbeanstalk/) - AWS-based with support for Tomcat and Jetty. * [AWS Elastic Beanstalk ![c]](https://aws.amazon.com/elasticbeanstalk/) - AWS-based, with support for Tomcat and Jetty.
* [AWS Lambda ![c]](https://aws.amazon.com/lambda/) - Serverless computation. * [AWS Lambda ![c]](https://aws.amazon.com/lambda/) - Serverless computation.
* [Google App Engine ![c]](https://cloud.google.com/) - PaaS on Google's infrastructure. * [Google App Engine ![c]](https://cloud.google.com/) - PaaS on Google's infrastructure.
* [Heroku ![c]](https://www.heroku.com/) - Abstract computing environments. * [Heroku ![c]](https://www.heroku.com/) - Abstract computing environments.
* [Jelastic ![c]](https://jelastic.com/) - Supports Tomcat, Jetty, GlassFish, JBoss, TomEE and WildFly. * [Jelastic ![c]](https://jelastic.com/) - Supports Tomcat, Jetty, GlassFish, JBoss, TomEE and WildFly.
* [OpenShift Enterprise ![c]](https://www.openshift.com/) - On premise solution. * [OpenShift Enterprise ![c]](https://www.openshift.com/) - On-premise solution.
## PDF ## PDF
*Everything that helps with the creation of PDF files.* *Tools to help with PDF file creation.*
* [Apache FOP](http://xmlgraphics.apache.org/fop/) - Creates PDF from XSL-FO. * [Apache FOP](http://xmlgraphics.apache.org/fop/) - Creates PDFs from XSL-FO.
* [Apache PDFBox](http://pdfbox.apache.org/) - Toolbox for creating and manipulating PDF. * [Apache PDFBox](http://pdfbox.apache.org/) - Toolbox for creating and manipulating PDFs.
* [Dynamic Jasper](http://dynamicjasper.com/) - Abstraction layer to JasperReports. * [Dynamic Jasper](http://dynamicjasper.com/) - Abstraction layer to JasperReports.
* [DynamicReports](http://dynamicreports.org/) - Simplifies JasperReports. * [DynamicReports](http://dynamicreports.org/) - Simplifies JasperReports.
* [flyingsaucer](https://github.com/flyingsaucerproject/flyingsaucer) - XML/XHTML and CSS 2.1 renderer. * [flyingsaucer](https://github.com/flyingsaucerproject/flyingsaucer) - XML/XHTML and CSS 2.1 renderer.
* [iText](http://itextpdf.com/) - Creates PDF files programmatically but requires a license for commercial purposes. * [iText ![c]](http://itextpdf.com/) - Creates PDF files programmatically.
* [JasperReports](http://community.jaspersoft.com/project/jasperreports-library) - Complex reporting engine. * [JasperReports](http://community.jaspersoft.com/project/jasperreports-library) - Complex reporting engine.
## Performance analysis ## Performance analysis
@ -684,7 +694,6 @@ A curated list of awesome Java frameworks, libraries and software.
* [Feign](https://github.com/Netflix/feign) - HTTP client binder inspired by Retrofit, JAXRS-2.0, and WebSocket. * [Feign](https://github.com/Netflix/feign) - HTTP client binder inspired by Retrofit, JAXRS-2.0, and WebSocket.
* [Jersey](https://jersey.java.net/) - JAX-RS reference implementation. * [Jersey](https://jersey.java.net/) - JAX-RS reference implementation.
* [Microserver](https://github.com/aol/micro-server) — A convenient extensible Microservices plugin system for Spring & Spring Boot, with over 30 plugins and growing, that supports both micro-monolith and pure microservices styles. * [Microserver](https://github.com/aol/micro-server) — A convenient extensible Microservices plugin system for Spring & Spring Boot, with over 30 plugins and growing, that supports both micro-monolith and pure microservices styles.
* [RAML](http://raml.org/) - Modeling language to generate REST APIs with contract first.
* [Rapidoid](http://www.rapidoid.org/) - A simple, secure and extremely fast framework consisting of embedded HTTP server, GUI components and dependency injection. * [Rapidoid](http://www.rapidoid.org/) - A simple, secure and extremely fast framework consisting of embedded HTTP server, GUI components and dependency injection.
* [rest.li](https://github.com/linkedin/rest.li) - Framework for building robust, scalable RESTful architectures using type-safe bindings and asynchronous, non-blocking IO with an end-to-end developer workflow that promotes clean practices, uniform interface design and consistent data modeling. * [rest.li](https://github.com/linkedin/rest.li) - Framework for building robust, scalable RESTful architectures using type-safe 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](http://resteasy.jboss.org/) - Fully certified and portable implementation of the JAX-RS specification.
@ -692,7 +701,6 @@ A curated list of awesome Java frameworks, libraries and software.
* [Restlet Framework](https://github.com/restlet/restlet-framework-java/) - Pioneering framework with powerful routing and filtering capabilities, unified client and server API. * [Restlet Framework](https://github.com/restlet/restlet-framework-java/) - Pioneering framework with powerful routing and filtering capabilities, unified client and server API.
* [Retrofit](http://square.github.io/retrofit/) - Type-safe REST client. * [Retrofit](http://square.github.io/retrofit/) - Type-safe REST client.
* [Spark](http://sparkjava.com/) - Sinatra inspired framework. * [Spark](http://sparkjava.com/) - Sinatra inspired framework.
* [Swagger](http://swagger.io/) - Swagger is a specification and complete framework implementation for describing, producing, consuming, and visualizing RESTful web services.
## Science ## Science
@ -704,6 +712,7 @@ 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. * [JGraphT](https://github.com/jgrapht/jgrapht) - Graph library that provides mathematical graph-theory objects and algorithms.
* [JGraphX](https://github.com/jgraph/jgraphx) - Library for visualisation (mainly Swing) and interaction with node-edge graphs. * [JGraphX](https://github.com/jgraph/jgraphx) - Library for visualisation (mainly Swing) and interaction with node-edge graphs.
* [Mines Java Toolkit](https://github.com/MinesJTK/jtk) - Library for geophysical scientific computation, visualization and digital signal analysis. * [Mines Java Toolkit](https://github.com/MinesJTK/jtk) - Library for geophysical scientific computation, visualization and digital signal analysis.
* [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 ## Search
@ -762,13 +771,16 @@ A curated list of awesome Java frameworks, libraries and software.
*Tools that test from model to the view.* *Tools that test from model to the view.*
* [Apache JMeter](http://jmeter.apache.org/) - Functional testing and performance measurements. * [Apache JMeter](http://jmeter.apache.org/) - Functional testing and performance measurements.
* [ArchUnit](https://github.com/TNG/ArchUnit) - Architecture test library, to specify and assert architecture rules.
* [Arquillian](http://arquillian.org/) - Integration and functional testing platform for Java EE containers. * [Arquillian](http://arquillian.org/) - Integration and functional testing platform for Java EE containers.
* [AssertJ](http://joel-costigliola.github.io/assertj/) - Fluent assertions that improve readability. * [AssertJ](http://joel-costigliola.github.io/assertj/) - Fluent assertions that improve readability.
* [Awaitility](https://github.com/jayway/awaitility) - DSL for synchronizing asynchronous operations. * [Awaitility](https://github.com/jayway/awaitility) - DSL for synchronizing asynchronous operations.
* [Burst](https://github.com/square/burst) - A unit testing library for varying test data.
* [Citrus](http://citrusframework.org/) - Integration testing framework with focus on client- and serverside messaging. * [Citrus](http://citrusframework.org/) - Integration testing framework with focus on client- and serverside messaging.
* [ConcurrentUnit](https://github.com/jhalterman/concurrentunit) - Toolkit for testing multi-threaded and asynchronous applications. * [ConcurrentUnit](https://github.com/jhalterman/concurrentunit) - Toolkit for testing multi-threaded and asynchronous applications.
* [Cucumber](https://github.com/cucumber/cucumber-jvm) - BDD testing framework. * [Cucumber](https://github.com/cucumber/cucumber-jvm) - BDD testing framework.
* [Cukes-REST](https://github.com/ctco/cukes-rest) - A collection of Gherkin steps for REST-service testing using Cucumber. * [Cukes-REST](https://github.com/ctco/cukes-rest) - A collection of Gherkin steps for REST-service testing using Cucumber.
* [Galen](https://github.com/galenframework/galen) - Layout and functional testing framework for websites.
* [Gatling](http://gatling.io/) - Load testing tool designed for ease of use, maintainability and high performance. * [Gatling](http://gatling.io/) - Load testing tool designed for ease of use, maintainability and high performance.
* [GreenMail](http://www.icegreen.com/greenmail/) - In-memory email server for integration testing. Supports SMTP, POP3 and IMAP including SSL. * [GreenMail](http://www.icegreen.com/greenmail/) - In-memory email server for integration testing. Supports SMTP, POP3 and IMAP including SSL.
* [J8Spec](https://github.com/j8spec/j8spec/) - J8Spec is a library that allows tests written in Java to follow the BDD style introduced by RSpec and Jasmine. * [J8Spec](https://github.com/j8spec/j8spec/) - J8Spec is a library that allows tests written in Java to follow the BDD style introduced by RSpec and Jasmine.
@ -789,9 +801,11 @@ A curated list of awesome Java frameworks, libraries and software.
* [pojo-tester](http://www.pojo.pl/) - Automatically performs tests on basic POJO-methods. * [pojo-tester](http://www.pojo.pl/) - Automatically performs tests on basic POJO-methods.
* [PowerMock](https://github.com/jayway/powermock) - Enables mocking of static methods, constructors, final classes and methods, private methods and removal of static initializers. * [PowerMock](https://github.com/jayway/powermock) - Enables mocking of static methods, constructors, final classes and methods, private methods and removal of static initializers.
* [raml-tester](https://github.com/nidi3/raml-tester) - Tests if a request/response matches a given RAML definition. * [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 for REST/HTTP services. * [REST Assured](https://github.com/jayway/rest-assured) - Java DSL for easy testing for REST/HTTP services.
* [Selenide](http://selenide.org/) - Concise API around Selenium to write stable and readable UI tests. * [Selenide](http://selenide.org/) - Concise API around Selenium to write stable and readable UI tests.
* [Selenium](http://docs.seleniumhq.org/) - Portable software testing framework for web applications. * [Selenium](http://docs.seleniumhq.org/) - Portable software testing framework for web applications.
* [Spock](https://github.com/spockframework/spock) - Spock is a developer testing and specification framework for Java and Groovy applications.
* [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. * [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. * [Truth](https://github.com/google/truth) - Google's assertion and proposition framework.
* [WireMock](http://wiremock.org/) - Stubs and mocks web services. * [WireMock](http://wiremock.org/) - Stubs and mocks web services.
@ -835,7 +849,6 @@ A curated list of awesome Java frameworks, libraries and software.
* [Apache Tapestry](http://tapestry.apache.org/) - Component-oriented framework for creating dynamic, robust, highly scalable web applications. * [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 Wicket](http://wicket.apache.org/) - Component-based web application framework similar to Tapestry with a stateful GUI.
* [Baratine](http://baratine.io) - Toolkit for building distributed and reactive applications for multiple environments, either standalone or embedded.
* [Blade](https://github.com/biezhi/blade) - Lightweight, modular framework which aims to be elegant and simple. * [Blade](https://github.com/biezhi/blade) - Lightweight, modular framework which aims to be elegant and simple.
* [Bootique](http://bootique.io/) - Minimally opinionated framework for runnable apps. * [Bootique](http://bootique.io/) - Minimally opinionated framework for runnable apps.
* [Grails](https://grails.org/) - Groovy framework with the aim to provide a highly productive environment by favoring convention over configuration, no XML and support for mixins. * [Grails](https://grails.org/) - Groovy framework with the aim to provide a highly productive environment by favoring convention over configuration, no XML and support for mixins.