From 04c4a468312af6afa926118eedb66f7d5afc928f Mon Sep 17 00:00:00 2001 From: Andreas Kull Date: Thu, 31 May 2018 12:36:51 +0200 Subject: [PATCH] Change unordered list marker --- README.md | 1238 ++++++++++++++++++++++++++--------------------------- 1 file changed, 619 insertions(+), 619 deletions(-) diff --git a/README.md b/README.md index 4f736c5..ffb1d99 100644 --- a/README.md +++ b/README.md @@ -81,604 +81,604 @@ 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](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. -* [Selma](https://github.com/xebia-france/selma) - Annotation processor-based bean mapper. +- [Dozer](https://github.com/DozerMapper/dozer) - Mapper that copies data from one object to another using 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. +- [Selma](https://github.com/xebia-france/selma) - Annotation processor-based bean mapper. ## Build *Tools that handle the build cycle and dependencies of an application.* -* [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. -* [Buck](https://github.com/facebook/buck) - Encourages the creation of small, reusable modules consisting of code and resources. -* [Gradle](https://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. +- [Buck](https://github.com/facebook/buck) - Encourages the creation of small, reusable modules consisting of code and resources. +- [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. -* [Byte Buddy](http://bytebuddy.net) - Further simplifies bytecode generation with a fluent API. -* [bytecode-viewer](https://github.com/Konloch/bytecode-viewer) - Java 8 Jar & Android APK reverse engineering suite. -* [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](https://jboss-javassist.github.io/javassist) - Tries to simplify bytecode editing. +- [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. +- [bytecode-viewer](https://github.com/Konloch/bytecode-viewer) - Java 8 Jar & Android APK reverse engineering suite. +- [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](https://jboss-javassist.github.io/javassist) - Tries to simplify bytecode editing. ## Caching *Libraries that provide caching facilities.* -* [Caffeine](https://github.com/ben-manes/caffeine) - High-performance, near-optimal caching library. -* [Ehcache](http://www.ehcache.org) - Distributed general-purpose cache. -* [Infinispan](http://infinispan.org) - Highly concurrent key/value datastore used for caching. +- [Caffeine](https://github.com/ben-manes/caffeine) - High-performance, near-optimal caching library. +- [Ehcache](http://www.ehcache.org) - Distributed general-purpose cache. +- [Infinispan](http://infinispan.org) - Highly concurrent key/value datastore used for caching. ## Cluster Management *Frameworks that can dynamically manage applications inside of a cluster.* -* [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. +- [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 *Tools that provide metrics and quality measurements.* -* [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. -* [Infer](https://github.com/facebook/infer) - Modern static analysis tool for verifying the correctness of code. -* [jQAssistant](https://jqassistant.org) - Static code analysis with Neo4J-based query language. -* [NullAway](https://github.com/uber/NullAway) - Eliminates NullPointerExceptions with low build-time overhead. -* [PMD](https://github.com/pmd/pmd) - Source code analysis for finding bad coding practices. -* [SonarJava](https://github.com/SonarSource/sonar-java) - Static analyzer for SonarQube & SonarLint. -* [Sourcetrail ![c]](https://www.sourcetrail.com) - Visual source code navigator. -* [Spoon](https://github.com/INRIA/spoon) - Library for analyzing and transforming Java source code. -* [Spotbugs](https://github.com/spotbugs/spotbugs) - Static analysis of bytecode to find potential bugs. +- [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. +- [Infer](https://github.com/facebook/infer) - Modern static analysis tool for verifying the correctness of code. +- [jQAssistant](https://jqassistant.org) - Static code analysis with Neo4J-based query language. +- [NullAway](https://github.com/uber/NullAway) - Eliminates NullPointerExceptions with low build-time overhead. +- [PMD](https://github.com/pmd/pmd) - Source code analysis for finding bad coding practices. +- [SonarJava](https://github.com/SonarSource/sonar-java) - Static analyzer for SonarQube & SonarLint. +- [Sourcetrail ![c]](https://www.sourcetrail.com) - Visual source code navigator. +- [Spoon](https://github.com/INRIA/spoon) - Library for analyzing and transforming Java source code. +- [Spotbugs](https://github.com/spotbugs/spotbugs) - Static analysis of bytecode to find potential bugs. ## Code Coverage *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](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. +- [Clover ![c]](https://www.atlassian.com/software/clover/overview) - Relies on source-code instrumentation instead of bytecode instrumentation. +- [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 *Tools that generate patterns for repetitive code in order to reduce verbosity and error-proneness.* -* [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](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. +- [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](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. ## Command-line Argument Parsers *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. -* [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](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. +- [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](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 *Frameworks that help to create parsers, interpreters or compilers.* -* [ANTLR](http://www.antlr.org) - Complex full-featured framework for top-down parsing. -* [JavaCC](https://javacc.org) - Parser generator that generates top-down parsers. Allows lexical state switching and permits extended BNF specifications. -* [JFlex](http://jflex.de) - A lexical analyzer generator. +- [ANTLR](http://www.antlr.org) - Complex full-featured framework for top-down parsing. +- [JavaCC](https://javacc.org) - Parser generator that generates top-down parsers. Allows lexical state switching and permits extended BNF specifications. +- [JFlex](http://jflex.de) - A lexical analyzer generator. ## Configuration *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. -* [dotenv](https://github.com/shyiko/dotenv) - A twelve-factor configuration library for Java. -* [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. +- [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. +- [dotenv](https://github.com/shyiko/dotenv) - A twelve-factor configuration library for Java. +- [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. ## Constraint Satisfaction Problem Solver *Libraries that help with implementing optimization and satisfiability problems.* -* [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](https://www.optaplanner.org) - Business planning and resource scheduling optimization solver. +- [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](https://www.optaplanner.org) - Business planning and resource scheduling optimization solver. ## CSV *Frameworks and libraries that simplify reading/writing CSV data.* -* [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](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. +- [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](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](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. -* [druid](http://druid.io) - High-performance, column-oriented, distributed data 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](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) - 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. -* [OrientDB](https://orientdb.com/orientdb) - Embeddable distributed database written on top of Hazelcast. -* [Presto](https://github.com/prestodb/presto) - Distributed SQL query engine for big data. -* [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. -* [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](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. +- [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. +- [druid](http://druid.io) - High-performance, column-oriented, distributed data 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](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) - 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. +- [OrientDB](https://orientdb.com/orientdb) - Embeddable distributed database written on top of Hazelcast. +- [Presto](https://github.com/prestodb/presto) - Distributed SQL query engine for big data. +- [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. +- [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](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 *Efficient and specific data structures.* -* [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](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](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. -* [Wire](https://github.com/square/wire) - Clean, lightweight protocol buffers. +- [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](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](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. +- [Wire](https://github.com/square/wire) - Clean, lightweight protocol buffers. ## Date and Time *Libraries related to handling date and time.* -* [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. -* [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. +- [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. +- [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 *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](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://javaee.github.io/hk2) - Lightweight and dynamic dependency injection framework. +- [Apache DeltaSpike](https://deltaspike.apache.org) - CDI extension framework. +- [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://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](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]](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. +- [AspectJ](https://eclipse.org/aspectj) - Seamless aspect-oriented programming extension. +- [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]](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](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]](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](https://www.paralleluniverse.co/quasar) - Lightweight threads and actors for the JVM. -* [resilience4j](https://github.com/resilience4j/resilience4j) - Functional fault tolerance library. -* [ScaleCube](https://github.com/scalecube/scalecube) - Embeddable Cluster-Membership library based on SWIM and gossip protocol. -* [Zuul](https://github.com/Netflix/zuul) - A gateway service that provides dynamic routing, monitoring, resiliency, security, and more. +- [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]](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](https://www.paralleluniverse.co/quasar) - Lightweight threads and actors for the JVM. +- [resilience4j](https://github.com/resilience4j/resilience4j) - Functional fault tolerance library. +- [ScaleCube](https://github.com/scalecube/scalecube) - Embeddable Cluster-Membership library based on SWIM and gossip protocol. +- [Zuul](https://github.com/Netflix/zuul) - A gateway service that provides dynamic routing, monitoring, resiliency, security, and more. ## Distributed Transactions *Distributed transactions provide a mechanism for ensuring consistency of data updates in the presence of concurrent access and partial failures.* -* [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. +- [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 *Tools that handle the distribution of applications in native formats.* -* [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](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]](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. +- [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](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]](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. ## Document Processing *Libraries that assist with processing office document formats.* -* [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](https://www.docx4java.org/trac/docx4j) - Create and manipulate Microsoft Open XML files. +- [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](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.* -* [CATG](https://github.com/ksen007/janala2) - Concolic unit testing engine. Automatically generates unit tests using formal methods. -* [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](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. +- [CATG](https://github.com/ksen007/janala2) - Concolic unit testing engine. Automatically generates unit tests using formal methods. +- [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](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 *Libraries that facilitate functional programming.* -* [cyclops-react](https://github.com/aol/cyclops-react) - Monad and stream utilities, comprehensions, pattern matching, functional extensions for all JDK collections, future streams, trampolines and much more. -* [derive4j](https://github.com/derive4j/derive4j) - Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching and morphisms. -* [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. -* [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. -* [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. +- [cyclops-react](https://github.com/aol/cyclops-react) - Monad and stream utilities, comprehensions, pattern matching, functional extensions for all JDK collections, future streams, trampolines and much more. +- [derive4j](https://github.com/derive4j/derive4j) - Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching and morphisms. +- [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. +- [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. +- [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. ## Game Development *Frameworks that support the development of games.* -* [FXGL](https://almasb.github.io/FXGL) - JavaFX Game Development Framework. -* [jMonkeyEngine](http://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. +- [jMonkeyEngine](http://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. ## Geospatial *Libraries for working with geospatial data and algorithms.* -* [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](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. +- [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](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. ## GUI *Libraries to create modern graphical user interfaces.* -* [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. +- [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](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](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. +- [Agrona](https://github.com/real-logic/Agrona) - Data structures and utility methods that are common in high-performance applications. +- [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](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. ## HTTP Clients *Libraries that assist with creating HTTP requests and/or binding responses.* -* [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](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](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. +- [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](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](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. ## Hypermedia Types *Libraries that handle serialization to hypermedia types.* -* [JSON-LD](https://github.com/jsonld-java/jsonld-java) - JSON-LD implementation. -* [Siren4J](https://github.com/eserating/siren4j) - Library for the Siren specification. +- [JSON-LD](https://github.com/jsonld-java/jsonld-java) - JSON-LD implementation. +- [Siren4J](https://github.com/eserating/siren4j) - Library for the Siren specification. ## IDE *Integrated development environments that try to simplify several aspects of development.* -* [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. -* [Visual Studio Code](https://code.visualstudio.com/docs/languages/java) - Provides Java support for lightweight projects with a simple, modern workflow by using extensions from the internal marketplace. +- [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. +- [Visual Studio Code](https://code.visualstudio.com/docs/languages/java) - Provides Java support for lightweight projects with a simple, modern workflow by using extensions from the internal marketplace. ## Imagery *Libraries that assist with the creation, evaluation or manipulation of graphical images.* -* [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. -* [Thumbnailator](https://github.com/coobird/thumbnailator) - High-quality thumbnail generation library. -* [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. +- [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. +- [Thumbnailator](https://github.com/coobird/thumbnailator) - High-quality thumbnail generation library. +- [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. ## JSON *Libraries for serializing and deserializing JSON to and from Java objects.* -* [DSL-JSON](https://github.com/ngs-doo/dsl-json) - JSON library with advanced compile time databinding. -* [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-modules-java8](https://github.com/FasterXML/jackson-modules-java8) - Set of Jackson modules for Java 8 datatypes and features. -* [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](https://github.com/FasterXML/jackson) - 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. -* [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. +- [DSL-JSON](https://github.com/ngs-doo/dsl-json) - JSON library with advanced compile time databinding. +- [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-modules-java8](https://github.com/FasterXML/jackson-modules-java8) - Set of Jackson modules for Java 8 datatypes and features. +- [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](https://github.com/FasterXML/jackson) - 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. +- [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 *Libraries for processing data in JSON format.* -* [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. -* [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. +- [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. +- [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. ## JVM and JDK *Current implementations of the JVM/JDK.* -* [Avian](https://github.com/ReadyTalk/avian) - JVM with both JIT and AOT modes. Includes an iOS port. -* [Graal](https://github.com/oracle/graal) - Polyglot virtual machine which can be embedded. -* [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](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. +- [Avian](https://github.com/ReadyTalk/avian) - JVM with both JIT and AOT modes. Includes an iOS port. +- [Graal](https://github.com/oracle/graal) - Polyglot virtual machine which can be embedded. +- [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](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](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](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](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. +- [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](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](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. ## Machine Learning *Tools that provide specific statistical algorithms for learning from data.* -* [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](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](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](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. +- [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](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](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](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](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. -* [Apache Pulsar](https://pulsar.apache.org) - Distributed pub/sub-messaging system. -* [EventBus](https://github.com/greenrobot/EventBus) - Simple publish/subscribe event bus. -* [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. -* [RocketMQ](https://github.com/alibaba/RocketMQ) - A fast, reliable, and scalable distributed messaging platform. -* [Smack](https://github.com/igniterealtime/Smack) - Cross-platform XMPP client library. +- [Aeron](https://github.com/real-logic/Aeron) - Efficient, reliable, unicast and multicast message transport. +- [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. +- [Apache Pulsar](https://pulsar.apache.org) - Distributed pub/sub-messaging system. +- [EventBus](https://github.com/greenrobot/EventBus) - Simple publish/subscribe event bus. +- [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. +- [RocketMQ](https://github.com/alibaba/RocketMQ) - A fast, reliable, and scalable distributed messaging platform. +- [Smack](https://github.com/igniterealtime/Smack) - Cross-platform XMPP client library. ## Miscellaneous *Everything else.* -* [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. -* [FizzBuzz Enterprise Edition](https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEdition) - No-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes. -* [J2ObjC](https://github.com/google/j2objc) - Java-to-Objective-C translator for porting Android libraries to iOS. -* [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. -* [Jimfs](https://github.com/google/jimfs) - In-memory file system. -* [Joda-Money](http://www.joda.org/joda-money) - Basic currency and money classes and algorithms not provided by the JDK. -* [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 building projects without installing maven. -* [Membrane Service Proxy](https://github.com/membrane/service-proxy) - An open-source, reverse-proxy framework written in Java. -* [MinimalFTP](https://github.com/Guichaguri/MinimalFTP) - Lightweight, small and customizable FTP server. -* [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. -* [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. -* [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. -* [OctoLinker](https://github.com/OctoLinker/browser-extension) - Browser extension which allows to navigate through code on GitHub more efficiently. +- [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. +- [FizzBuzz Enterprise Edition](https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEdition) - No-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes. +- [J2ObjC](https://github.com/google/j2objc) - Java-to-Objective-C translator for porting Android libraries to iOS. +- [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. +- [Jimfs](https://github.com/google/jimfs) - In-memory file system. +- [Joda-Money](http://www.joda.org/joda-money) - Basic currency and money classes and algorithms not provided by the JDK. +- [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 building projects without installing maven. +- [Membrane Service Proxy](https://github.com/membrane/service-proxy) - An open-source, reverse-proxy framework written in Java. +- [MinimalFTP](https://github.com/Guichaguri/MinimalFTP) - Lightweight, small and customizable FTP server. +- [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. +- [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. +- [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. +- [OctoLinker](https://github.com/OctoLinker/browser-extension) - Browser extension which allows to navigate through code on GitHub more efficiently. ## Microservice *Tools for creating and managing 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. -* [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. -* [Micronaut](http://micronaut.io) - Modern full-stack framework with focus on modularity, minimal memory footprint and startup time. +- [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. +- [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. +- [Micronaut](http://micronaut.io) - Modern full-stack framework with focus on modularity, minimal memory footprint and startup time. ## Monitoring *Tools that monitor applications in production.* -* [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. -* [BugSnag ![c]](https://www.bugsnag.com) - Exception and error monitoring with an integration of several third party tools for a better workflow and a free hobbyist tier. -* [LeakCanary](https://github.com/square/leakcanary) - Memory leak detection. -* [Failsafe Actuator](https://github.com/zalando-incubator/failsafe-actuator) - Out of the box monitoring of Failsafe Circuit Breaker in Spring-Boot environment. -* [Glowroot](https://glowroot.org) - Open-source Java APM. -* [inspectIT](http://www.inspectit.rocks) - Captures detailed run-time information via hooks that can be changed on the fly. It supports tracing over multiple systems via the OpenTracing API and can correlate the data with end user monitoring. -* [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. -* [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. -* [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]](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. -* [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. -* [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. -* [zipkin](https://zipkin.io) - Distributed tracing system which gathers timing data needed to troubleshoot latency problems in microservice architectures. +- [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. +- [BugSnag ![c]](https://www.bugsnag.com) - Exception and error monitoring with an integration of several third party tools for a better workflow and a free hobbyist tier. +- [LeakCanary](https://github.com/square/leakcanary) - Memory leak detection. +- [Failsafe Actuator](https://github.com/zalando-incubator/failsafe-actuator) - Out of the box monitoring of Failsafe Circuit Breaker in Spring-Boot environment. +- [Glowroot](https://glowroot.org) - Open-source Java APM. +- [inspectIT](http://www.inspectit.rocks) - Captures detailed run-time information via hooks that can be changed on the fly. It supports tracing over multiple systems via the OpenTracing API and can correlate the data with end user monitoring. +- [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. +- [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. +- [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]](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. +- [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. +- [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. +- [zipkin](https://zipkin.io) - Distributed tracing system which gathers timing data needed to troubleshoot latency problems in microservice architectures. ## Native *For working with platform-specific native libraries.* -* [JavaCPP](https://github.com/bytedeco/javacpp) - Provides efficient and easy access to native C++. -* [JNA](https://github.com/java-native-access/jna) - Work with native libraries without writing JNI. Also provides interfaces to common system libraries. -* [JNR](https://github.com/jnr/jnr-ffi) - Work with native libraries without writing JNI. Also provides interfaces to common system libraries. Same goals as JNA, but faster, and serves as the basis for the upcoming [Project Panama](http://openjdk.java.net/projects/panama). +- [JavaCPP](https://github.com/bytedeco/javacpp) - Provides efficient and easy access to native C++. +- [JNA](https://github.com/java-native-access/jna) - Work with native libraries without writing JNI. Also provides interfaces to common system libraries. +- [JNR](https://github.com/jnr/jnr-ffi) - Work with native libraries without writing JNI. Also provides interfaces to common system libraries. Same goals as JNA, but faster, and serves as the basis for the upcoming [Project Panama](http://openjdk.java.net/projects/panama). ## Natural Language Processing *Libraries that specialize in processing text.* -* [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. +- [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. ## Networking *Libraries for building network servers.* -* [Comsat](https://github.com/puniverse/comsat) - Integrates standard Java web-related APIs with Quasar fibers and actors. -* [Dubbo](https://github.com/alibaba/dubbo) - High-performance RPC framework. -* [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://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](https://netty.io) - Framework for building high-performance network applications. -* [Nifty](https://github.com/facebook/nifty) - Implementation of Thrift clients and servers on Netty. -* [sshj](https://github.com/hierynomus/sshj) - Programatically use SSH, SCP or SFTP. -* [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. +- [Comsat](https://github.com/puniverse/comsat) - Integrates standard Java web-related APIs with Quasar fibers and actors. +- [Dubbo](https://github.com/alibaba/dubbo) - High-performance RPC framework. +- [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://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](https://netty.io) - Framework for building high-performance network applications. +- [Nifty](https://github.com/facebook/nifty) - Implementation of Thrift clients and servers on Netty. +- [sshj](https://github.com/hierynomus/sshj) - Programatically use SSH, SCP or SFTP. +- [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. ## ORM *APIs that handle the persistence of objects.* -* [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. -* [SimpleFlatMapper](https://github.com/arnaudroger/SimpleFlatMapper) - Simple database and CSV mapper. +- [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. +- [SimpleFlatMapper](https://github.com/arnaudroger/SimpleFlatMapper) - Simple database and CSV mapper. ## PaaS *Java platform as a service.* -* [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. -* [Google App Engine ![c]](https://cloud.google.com) - PaaS on Google's infrastructure. -* [Heroku ![c]](https://www.heroku.com) - Abstract computing environments. -* [Jelastic ![c]](https://jelastic.com) - Supports Tomcat, Jetty, GlassFish, JBoss, TomEE and WildFly. -* [OpenShift Enterprise ![c]](https://www.openshift.com) - On-premise solution. +- [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. +- [Google App Engine ![c]](https://cloud.google.com) - PaaS on Google's infrastructure. +- [Heroku ![c]](https://www.heroku.com) - Abstract computing environments. +- [Jelastic ![c]](https://jelastic.com) - Supports Tomcat, Jetty, GlassFish, JBoss, TomEE and WildFly. +- [OpenShift Enterprise ![c]](https://www.openshift.com) - On-premise solution. ## PDF *Tools to help with PDF file creation.* -* [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]](https://itextpdf.com) - Creates PDF files programmatically. -* [JasperReports](https://community.jaspersoft.com/project/jasperreports-library) - Complex reporting engine. +- [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]](https://itextpdf.com) - Creates PDF files programmatically. +- [JasperReports](https://community.jaspersoft.com/project/jasperreports-library) - Complex reporting engine. ## Performance analysis *Tools for performance analysis, profiling and benchmarking.* -* [fastThread ![c]](http://fastthread.io) - Analyze and visualize thread dumps with a free cloud-based upload interface. -* [GCeasy ![c]](http://gceasy.io) - Tool to analyze and visualize GC logs. It provides a free cloud-based upload interface. -* [honest-profiler](https://github.com/RichardWarburton/honest-profiler) - A low-overhead, bias-free sampling profiler. -* [jHiccup](https://github.com/giltene/jHiccup) - Logs and records platform JVM stalls. -* [JITWatch](https://github.com/AdoptOpenJDK/jitwatch) - Analyze the JIT compiler optimisations made by the HotSpot JVM. -* [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]](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. +- [fastThread ![c]](http://fastthread.io) - Analyze and visualize thread dumps with a free cloud-based upload interface. +- [GCeasy ![c]](http://gceasy.io) - Tool to analyze and visualize GC logs. It provides a free cloud-based upload interface. +- [honest-profiler](https://github.com/RichardWarburton/honest-profiler) - A low-overhead, bias-free sampling profiler. +- [jHiccup](https://github.com/giltene/jHiccup) - Logs and records platform JVM stalls. +- [JITWatch](https://github.com/AdoptOpenJDK/jitwatch) - Analyze the JIT compiler optimisations made by the HotSpot JVM. +- [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]](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 @@ -686,163 +686,163 @@ A curated list of awesome Java frameworks, libraries and software. ### Apache Commons -* [Pool](http://commons.apache.org/proper/commons-pool) - Generic object pooling component. -* [BCEL](http://commons.apache.org/proper/commons-bcel) - Byte Code Engineering Library - analyze, create, and manipulate Java class files. -* [Codec](http://commons.apache.org/proper/commons-codec) - General encoding/decoding algorithms (for example phonetic, base64, URL). -* [Compress](http://commons.apache.org/proper/commons-compress) - Defines an API for working with tar, zip and bzip2 files. -* [IO](http://commons.apache.org/proper/commons-io) - Collection of I/O utilities. -* [Configuration](http://commons.apache.org/proper/commons-configuration) - Reading of configuration/preferences files in various formats. -* [VFS](http://commons.apache.org/proper/commons-vfs) - Virtual File System component for treating files, FTP, SMB, ZIP and such like as a single logical file system. -* [Jelly](http://commons.apache.org/proper/commons-jelly) - XML based scripting and processing engine. -* [CSV](http://commons.apache.org/proper/commons-csv) - Component for reading and writing comma separated value files. -* [JCS](http://commons.apache.org/proper/commons-jcs) - Java Caching System. -* [Email](http://commons.apache.org/proper/commons-email) - Library for sending e-mail from Java. -* [DbUtils](http://commons.apache.org/proper/commons-dbutils) - JDBC helper library. -* [FileUpload](http://commons.apache.org/proper/commons-fileupload) - File upload capability for your servlets and web applications. -* [Lang](http://commons.apache.org/proper/commons-lang) - Provides extra functionality for classes in java.lang. -* [Jexl](http://commons.apache.org/proper/commons-jexl) - Expression language which extends the Expression Language of the JSTL. -* [CLI](http://commons.apache.org/proper/commons-cli) - Command Line arguments parser. -* [Validator](http://commons.apache.org/proper/commons-validator) - Framework to define validators and validation rules in an xml file. -* [Net](http://commons.apache.org/proper/commons-net) - Collection of network utilities and protocol implementations. -* [RNG](https://commons.apache.org/proper/commons-rng) - Commons Rng provides implementations of pseudo-random numbers generators. -* [RDF](https://commons.apache.org/proper/commons-rdf) - Common implementation of RDF 1.1 that could be implemented by systems on the JVM. -* [Weaver](http://commons.apache.org/proper/commons-weaver) - Provides an easy way to enhance (weave) compiled bytecode. -* [BeanUtils](http://commons.apache.org/proper/commons-beanutils) - Easy-to-use wrappers around the Java reflection and introspection APIs. -* [Collections](http://commons.apache.org/proper/commons-collections) - Extends or augments the Java Collections Framework. -* [DBCP](http://commons.apache.org/proper/commons-dbcp) - Database connection pooling services. -* [Math](http://commons.apache.org/proper/commons-math) - Lightweight, self-contained mathematics and statistics components. -* [Exec](http://commons.apache.org/proper/commons-exec) - API for dealing with external process execution and environment management in Java. -* [Logging](https://en.wikipedia.org/wiki/Apache_Commons_Logging) Wrapper around a variety of logging API implementations. -* [OGNL](http://commons.apache.org/proper/commons-ognl) - An Object-Graph Navigation Language. -* [JCI](http://commons.apache.org/proper/commons-jci) - Java Compiler Interface. -* [Daemon](http://commons.apache.org/proper/commons-daemon) - Alternative invocation mechanism for unix-daemon-like java code. -* [Functor](http://commons.apache.org/proper/commons-functor) - A functor is a function that can be manipulated as an object, or an object representing a single, generic function. -* [Digester](http://commons.apache.org/proper/commons-digester) - XML-to-Java-object mapping utility. -* [BSF](http://commons.apache.org/proper/commons-bsf) - Bean Scripting Framework - interface to scripting languages, including JSR-223. -* [Imaging](http://commons.apache.org/proper/commons-imaging) - A pure-Java image library. -* [SCXML](http://commons.apache.org/proper/commons-scxml) - An implementation of the State Chart XML specification aimed at creating and maintaining a Java SCXML engine. -* [JXPath](http://commons.apache.org/proper/commons-jxpath) - Utilities for manipulating Java Beans using the XPath syntax. -* [Chain](http://commons.apache.org/proper/commons-chain) - Chain of Responsibility pattern implementation. -* [Proxy](http://commons.apache.org/proper/commons-proxy) - Library for creating dynamic proxies. -* [BeanUtils2](http://commons.apache.org/sandbox/commons-beanutils2) - Redesign of Commons BeanUtils. -* [ClassScan](http://commons.apache.org/sandbox/commons-classscan) - Find Class interfaces, methods, fields, and annotations without loading. -* [CLI2](http://commons.apache.org/sandbox/commons-cli2) Redesign of Commons CLI. -* [Convert](http://commons.apache.org/sandbox/commons-convert) - Commons-Convert aims to provide a single library dedicated to the task of converting an object of one type to another. -* [Finder](http://commons.apache.org/sandbox/commons-finder) - Java library inspired by the UNIX find command. -* [Flatfile](http://commons.apache.org/sandbox/commons-flatfile) - Java library for working with flat data structures. -* [Graph](http://commons.apache.org/sandbox/commons-graph) - A general purpose Graph APIs and algorithms. -* [I18n](http://commons.apache.org/sandbox/commons-i18n) - Adds the feature of localized message bundles that consist of one or many localized texts that belong together. -* [Id](http://commons.apache.org/sandbox/commons-id) - Id is a component used to generate identifiers. -* [Javaflow](http://commons.apache.org/sandbox/commons-javaflow) - Continuation implementation to capture the state of the application. -* [JNet](http://commons.apache.org/sandbox/commons-jnet) - JNet allows to use dynamically register url stream handlers through the java.net API. -* [Monitoring](http://commons.apache.org/sandbox/commons-monitoring) - Monitoring aims to provide a simple but extensible monitoring solution for Java applications. -* [Nabla](http://commons.apache.org/sandbox/commons-nabla) - Nabla provides automatic differentiation classes that can generate derivative of any function implemented in the Java language. -* [OpenPGP](http://commons.apache.org/sandbox/commons-openpgp) - Interface to signing and verifying data using OpenPGP. -* [Performance](http://commons.apache.org/sandbox/commons-performance) - A small framework for microbenchmark clients, with implementations for Commons DBCP and Pool. -* [Pipeline](http://commons.apache.org/sandbox/commons-pipeline) - Provides a set of pipeline utilities designed around work queues that run in parallel to sequentially process data objects. +- [Pool](http://commons.apache.org/proper/commons-pool) - Generic object pooling component. +- [BCEL](http://commons.apache.org/proper/commons-bcel) - Byte Code Engineering Library - analyze, create, and manipulate Java class files. +- [Codec](http://commons.apache.org/proper/commons-codec) - General encoding/decoding algorithms (for example phonetic, base64, URL). +- [Compress](http://commons.apache.org/proper/commons-compress) - Defines an API for working with tar, zip and bzip2 files. +- [IO](http://commons.apache.org/proper/commons-io) - Collection of I/O utilities. +- [Configuration](http://commons.apache.org/proper/commons-configuration) - Reading of configuration/preferences files in various formats. +- [VFS](http://commons.apache.org/proper/commons-vfs) - Virtual File System component for treating files, FTP, SMB, ZIP and such like as a single logical file system. +- [Jelly](http://commons.apache.org/proper/commons-jelly) - XML based scripting and processing engine. +- [CSV](http://commons.apache.org/proper/commons-csv) - Component for reading and writing comma separated value files. +- [JCS](http://commons.apache.org/proper/commons-jcs) - Java Caching System. +- [Email](http://commons.apache.org/proper/commons-email) - Library for sending e-mail from Java. +- [DbUtils](http://commons.apache.org/proper/commons-dbutils) - JDBC helper library. +- [FileUpload](http://commons.apache.org/proper/commons-fileupload) - File upload capability for your servlets and web applications. +- [Lang](http://commons.apache.org/proper/commons-lang) - Provides extra functionality for classes in java.lang. +- [Jexl](http://commons.apache.org/proper/commons-jexl) - Expression language which extends the Expression Language of the JSTL. +- [CLI](http://commons.apache.org/proper/commons-cli) - Command Line arguments parser. +- [Validator](http://commons.apache.org/proper/commons-validator) - Framework to define validators and validation rules in an xml file. +- [Net](http://commons.apache.org/proper/commons-net) - Collection of network utilities and protocol implementations. +- [RNG](https://commons.apache.org/proper/commons-rng) - Commons Rng provides implementations of pseudo-random numbers generators. +- [RDF](https://commons.apache.org/proper/commons-rdf) - Common implementation of RDF 1.1 that could be implemented by systems on the JVM. +- [Weaver](http://commons.apache.org/proper/commons-weaver) - Provides an easy way to enhance (weave) compiled bytecode. +- [BeanUtils](http://commons.apache.org/proper/commons-beanutils) - Easy-to-use wrappers around the Java reflection and introspection APIs. +- [Collections](http://commons.apache.org/proper/commons-collections) - Extends or augments the Java Collections Framework. +- [DBCP](http://commons.apache.org/proper/commons-dbcp) - Database connection pooling services. +- [Math](http://commons.apache.org/proper/commons-math) - Lightweight, self-contained mathematics and statistics components. +- [Exec](http://commons.apache.org/proper/commons-exec) - API for dealing with external process execution and environment management in Java. +- [Logging](https://en.wikipedia.org/wiki/Apache_Commons_Logging) Wrapper around a variety of logging API implementations. +- [OGNL](http://commons.apache.org/proper/commons-ognl) - An Object-Graph Navigation Language. +- [JCI](http://commons.apache.org/proper/commons-jci) - Java Compiler Interface. +- [Daemon](http://commons.apache.org/proper/commons-daemon) - Alternative invocation mechanism for unix-daemon-like java code. +- [Functor](http://commons.apache.org/proper/commons-functor) - A functor is a function that can be manipulated as an object, or an object representing a single, generic function. +- [Digester](http://commons.apache.org/proper/commons-digester) - XML-to-Java-object mapping utility. +- [BSF](http://commons.apache.org/proper/commons-bsf) - Bean Scripting Framework - interface to scripting languages, including JSR-223. +- [Imaging](http://commons.apache.org/proper/commons-imaging) - A pure-Java image library. +- [SCXML](http://commons.apache.org/proper/commons-scxml) - An implementation of the State Chart XML specification aimed at creating and maintaining a Java SCXML engine. +- [JXPath](http://commons.apache.org/proper/commons-jxpath) - Utilities for manipulating Java Beans using the XPath syntax. +- [Chain](http://commons.apache.org/proper/commons-chain) - Chain of Responsibility pattern implementation. +- [Proxy](http://commons.apache.org/proper/commons-proxy) - Library for creating dynamic proxies. +- [BeanUtils2](http://commons.apache.org/sandbox/commons-beanutils2) - Redesign of Commons BeanUtils. +- [ClassScan](http://commons.apache.org/sandbox/commons-classscan) - Find Class interfaces, methods, fields, and annotations without loading. +- [CLI2](http://commons.apache.org/sandbox/commons-cli2) Redesign of Commons CLI. +- [Convert](http://commons.apache.org/sandbox/commons-convert) - Commons-Convert aims to provide a single library dedicated to the task of converting an object of one type to another. +- [Finder](http://commons.apache.org/sandbox/commons-finder) - Java library inspired by the UNIX find command. +- [Flatfile](http://commons.apache.org/sandbox/commons-flatfile) - Java library for working with flat data structures. +- [Graph](http://commons.apache.org/sandbox/commons-graph) - A general purpose Graph APIs and algorithms. +- [I18n](http://commons.apache.org/sandbox/commons-i18n) - Adds the feature of localized message bundles that consist of one or many localized texts that belong together. +- [Id](http://commons.apache.org/sandbox/commons-id) - Id is a component used to generate identifiers. +- [Javaflow](http://commons.apache.org/sandbox/commons-javaflow) - Continuation implementation to capture the state of the application. +- [JNet](http://commons.apache.org/sandbox/commons-jnet) - JNet allows to use dynamically register url stream handlers through the java.net API. +- [Monitoring](http://commons.apache.org/sandbox/commons-monitoring) - Monitoring aims to provide a simple but extensible monitoring solution for Java applications. +- [Nabla](http://commons.apache.org/sandbox/commons-nabla) - Nabla provides automatic differentiation classes that can generate derivative of any function implemented in the Java language. +- [OpenPGP](http://commons.apache.org/sandbox/commons-openpgp) - Interface to signing and verifying data using OpenPGP. +- [Performance](http://commons.apache.org/sandbox/commons-performance) - A small framework for microbenchmark clients, with implementations for Commons DBCP and Pool. +- [Pipeline](http://commons.apache.org/sandbox/commons-pipeline) - Provides a set of pipeline utilities designed around work queues that run in parallel to sequentially process data objects. ### Other -* [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](https://spring.io/projects) - Provides many packages for dependency injection, aspect-oriented programming, security, etc. +- [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](https://spring.io/projects) - Provides many packages for dependency injection, aspect-oriented programming, security, etc. ## Reactive libraries *Libraries for developing reactive 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](https://projectreactor.io) - Library for building reactive fast-data applications. -* [RxJava](https://github.com/ReactiveX/RxJava) - Allows for composing asynchronous and event-based programs using observable sequences. -* [vert.x](http://vertx.io) - Polyglot event-driven application framework. +- [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](https://projectreactor.io) - Library for building reactive fast-data applications. +- [RxJava](https://github.com/ReactiveX/RxJava) - Allows for composing asynchronous and event-based programs using observable sequences. +- [vert.x](http://vertx.io) - Polyglot event-driven application framework. ## REST Frameworks *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.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](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](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. -* [Crnk](http://www.crnk.io) - Implementation of the JSON API specification to build resource-oriented REST endpoints with sorting, filtering, paging, linking, object graphs, type-safety, bulk updates, integrations and more. -* [Swagger](https://swagger.io) - Standard, language-agnostic interface to REST APIs. +- [Dropwizard](https://dropwizard.github.io/dropwizard) - Opinionated framework for setting up modern web applications with Jetty, Jackson, Jersey and Metrics. +- [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](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](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. +- [Crnk](http://www.crnk.io) - Implementation of the JSON API specification to build resource-oriented REST endpoints with sorting, filtering, paging, linking, object graphs, type-safety, bulk updates, integrations and more. +- [Swagger](https://swagger.io) - Standard, language-agnostic interface to REST APIs. ## Science *Libraries for scientific computing, analysis and visualization.* -* [DataMelt](http://jwork.org/dmelt) - Environment for scientific computation, data analysis and data visualization. -* [Erdos](https://github.com/Erdos-Graph-Framework/Erdos) - Modular, light and easy graph framework for theoretic algorithms. -* [GraphStream](http://graphstream-project.org) - Library for modeling and analyzing dynamic graphs. -* [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. +- [DataMelt](http://jwork.org/dmelt) - Environment for scientific computation, data analysis and data visualization. +- [Erdos](https://github.com/Erdos-Graph-Framework/Erdos) - Modular, light and easy graph framework for theoretic algorithms. +- [GraphStream](http://graphstream-project.org) - Library for modeling and analyzing dynamic graphs. +- [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 *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](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. +- [Apache Lucene](https://lucene.apache.org) - High-performance, full-featured, cross-platform, text search engine library. +- [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](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](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. +- [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](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 *Libraries that handle serialization with high efficiency.* -* [FlatBuffers](https://github.com/google/flatbuffers) - Memory-efficient serialization library that can access serialized data without unpacking and parsing it. -* [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. +- [FlatBuffers](https://github.com/google/flatbuffers) - Memory-efficient serialization library that can access serialized data without unpacking and parsing it. +- [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](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. +- [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. ## Template Engine *Tools that substitute expressions in a template.* -* [Handlebars.java](https://jknack.github.io/handlebars.java) - Logicless and semantic Mustache templates. -* [Jade4J](https://github.com/neuland/jade4j) - Implementation of Pug (formerly known as Jade). -* [Jtwig](http://jtwig.org) - Modular, configurable and fully tested template engine. -* [Pebble](http://www.mitchellbosecke.com/pebble/home) - Inspired by Twig and separates itself with its inheritance feature and its 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. +- [Handlebars.java](https://jknack.github.io/handlebars.java) - Logicless and semantic Mustache templates. +- [Jade4J](https://github.com/neuland/jade4j) - Implementation of Pug (formerly known as Jade). +- [Jtwig](http://jtwig.org) - Modular, configurable and fully tested template engine. +- [Pebble](http://www.mitchellbosecke.com/pebble/home) - Inspired by Twig and separates itself with its inheritance feature and its 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 @@ -852,135 +852,135 @@ A curated list of awesome Java frameworks, libraries and software. *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. +- [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 *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) - 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. +- [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) - 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. +- [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 *Provide environments to run tests for a specific use case.* -* [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](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. -* [Pact JVM](https://github.com/DiUS/pact-jvm) - Consumer-driven contract testing. -* [PIT](http://pitest.org) - Fast mutation-testing framework for evaluating fault-detection abilities of existing JUnit or TestNG test suites. +- [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](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. +- [Pact JVM](https://github.com/DiUS/pact-jvm) - Consumer-driven contract testing. +- [PIT](http://pitest.org) - Fast mutation-testing framework for evaluating fault-detection abilities of existing JUnit or TestNG test suites. ### 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. +- [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 *Other stuff related to testing.* -* [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. +- [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 *Tools which mock collaborators to help testing single, isolated units.* -* [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](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. +- [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](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. ### Parameterization *Simplifies the writing of parameterized tests.* -* [Burst](https://github.com/square/burst) - A unit testing library for varying test data. -* [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. +- [Burst](https://github.com/square/burst) - A unit testing library for varying test data. +- [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. ## Utility *Libraries which provide general utility 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. -* [fswatch](https://github.com/vorburger/ch.vorburger.fswatch) - Micro library to watch for directory file system changes, simplifying java.nio.file.WatchService -* [Gephi](https://github.com/gephi/gephi) - Cross-platform for visualizing and manipulating large graph networks. -* [Guava](https://github.com/google/guava) - Collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and more. -* [JADE](http://jade.tilab.com) - Framework and environment for building and debugging multi-agent systems. -* [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](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. +- [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. +- [fswatch](https://github.com/vorburger/ch.vorburger.fswatch) - Micro library to watch for directory file system changes, simplifying java.nio.file.WatchService +- [Gephi](https://github.com/gephi/gephi) - Cross-platform for visualizing and manipulating large graph networks. +- [Guava](https://github.com/google/guava) - Collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and more. +- [JADE](http://jade.tilab.com) - Framework and environment for building and debugging multi-agent systems. +- [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](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 *Utilities that help create the development shell environment and switch between different Java versions.* -* [jabba](https://github.com/shyiko/jabba) - Java Version Manager inspired by nvm. Supports Mac OS X, Linux and Windows. -* [jenv](https://github.com/gcuisinier/jenv) - Java Version Manager inspired by rbenv. Can configure globally or per project. Tested on Debian and Mac OS X. -* [SDKMan](https://github.com/sdkman/sdkman-cli) - Java Version Manager inspired by RVM and rbenv. Supports UNIX-based platforms and Windows. +- [jabba](https://github.com/shyiko/jabba) - Java Version Manager inspired by nvm. Supports Mac OS X, Linux and Windows. +- [jenv](https://github.com/gcuisinier/jenv) - Java Version Manager inspired by rbenv. Can configure globally or per project. Tested on Debian and Mac OS X. +- [SDKMan](https://github.com/sdkman/sdkman-cli) - Java Version Manager inspired by RVM and rbenv. Supports UNIX-based platforms and Windows. ## Web Crawling *Libraries that analyze the content of websites.* -* [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](https://jsoup.org) - Scrapes, parses, manipulates and cleans HTML. -* [StormCrawler](http://stormcrawler.net) - SDK for building low-latency and scalable web crawlers. -* [webmagic](https://github.com/code4craft/webmagic) - Scalable crawler with downloading, url management, content extraction and persistent. +- [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](https://jsoup.org) - Scrapes, parses, manipulates and cleans HTML. +- [StormCrawler](http://stormcrawler.net) - SDK for building low-latency and scalable web crawlers. +- [webmagic](https://github.com/code4craft/webmagic) - Scalable crawler with downloading, url management, content extraction and persistent. ## Web Frameworks *Frameworks that handle the communication between the layers of a web application.* -* [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](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. -* [Takes](https://github.com/yegor256/takes) - Opinionated web framework which is built around the concepts of True Object-Oriented Programming and immutability. -* [Vaadin](https://vaadin.com/home) - Event-driven framework built on top of GWT. Uses server-side architecture with Ajax on the client side. +- [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](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. +- [Takes](https://github.com/yegor256/takes) - Opinionated web framework which is built around the concepts of True Object-Oriented Programming and immutability. +- [Vaadin](https://vaadin.com/home) - Event-driven framework built on top of GWT. Uses server-side architecture with Ajax on the client side. # Resources @@ -988,103 +988,103 @@ A curated list of awesome Java frameworks, libraries and software. *Awesome lists related to the Java & JVM ecosystem.* -* [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) +- [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](https://stackoverflow.com/questions/tagged/java) - Question/answer platform. -* [VirtualJUG](https://virtualjug.com) - Virtual Java User Group. +- [r/java](https://www.reddit.com/r/java) - Subreddit for the Java community. +- [stackoverflow](https://stackoverflow.com/questions/tagged/java) - Question/answer platform. +- [VirtualJUG](https://virtualjug.com) - Virtual Java User Group. ## Frontends *Websites that provide a frontend for this list. Please note, there won't be an official website. We don't associate with a particular website and everybody is allowed to create one.* -* [java.libhunt.com](https://java.libhunt.com) +- [java.libhunt.com](https://java.libhunt.com) ## Influential Books *Books that made a big impact and are still worth reading.* -* [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 (3rd Edition)](https://www.amazon.com/Effective-Java-3rd-Joshua-Bloch/dp/0134685997) -* [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) +- [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 (3rd Edition)](https://www.amazon.com/Effective-Java-3rd-Joshua-Bloch/dp/0134685997) +- [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 *Something to look at or listen to while programming.* -* [Java Off Heap](http://www.javaoffheap.com) -* [Marco Behler's Screencasts](https://www.marcobehler.com/series) - Screencasts about modern Java development. -* [The Java Council](https://virtualjug.com/podcast) -* [The Java Posse](http://www.javaposse.com) - Discontinued as of 02/2015. +- [Java Off Heap](http://www.javaoffheap.com) +- [Marco Behler's Screencasts](https://www.marcobehler.com/series) - Screencasts about modern Java development. +- [The Java Council](https://virtualjug.com/podcast) +- [The Java Posse](http://www.javaposse.com) - Discontinued as of 02/2015. ## Twitter *Active accounts to follow. Descriptions from Twitter.* -* [Adam Bien](https://twitter.com/AdamBien) - Freelance author, JavaOne Rockstar speaker, consultant, Java Champion. -* [Aleksey Shipilëv](https://twitter.com/shipilev) - Performance geek, benchmarking czar, concurrency bug hunter. -* [Antonio Goncalves](https://twitter.com/agoncal) - Java Champion, JUG Leader, Devoxx France, Java EE 6/7, JCP, Author. -* [Arun Gupta](https://twitter.com/arungupta) - Java Champion, JavaOne Rockstar, JUG Leader, Devoxx4Kids-er, VP of Developer Advocacy at Couchbase. -* [Brian Goetz](https://twitter.com/BrianGoetz) - Java Language Architect at Oracle. -* [Bruno Borges](https://twitter.com/brunoborges) - Product Manager/Java Jock at Oracle. -* [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. -* [Java Magazine](https://twitter.com/Oraclejavamag) - Official Java Magazine account. -* [Java](https://twitter.com/java) - Official Java Twitter account. -* [Javin Paul](https://twitter.com/javinpaul) - Well-known Java blogger. -* [Josh Long](https://twitter.com/starbuxman) - Spring Advocate at Pivotal, author of O'Reilly's *Cloud Native Java* and *Building Microservices with Spring Boot*, JavaOne Rock Star. -* [Lukas Eder](https://twitter.com/lukaseder) - Java Champion, speaker, JUG.ch co-leader, Founder and CEO Data Geekery (jOOQ). -* [Mario Fusco](https://twitter.com/mariofusco) - RedHatter, JUG coordinator, frequent speaker and author. -* [Mark Heckler](https://twitter.com/MkHeck) - Pivotal Principal Technologist and Developer Advocate, conference speaker, published author, and Java Champion, focusing on Internet of Things and the cloud. -* [Mark Reinhold](https://twitter.com/mreinhold) - Chief Architect, Java Platform Group, Oracle. -* [Markus Eisele](https://twitter.com/myfear) - Java EE evangelist, Red Hat. -* [Martijn Verburg](https://twitter.com/karianna) - London JUG co-leader, speaker, author, Java Champion and much more. -* [Martin Thompson](https://twitter.com/mjpt777) - Pasty faced performance gangster. -* [Monica Beckwith](https://twitter.com/mon_beck) - Performance consultant, JavaOne Rock Star. -* [OpenJDK](https://twitter.com/OpenJDK) - Official OpenJDK account. -* [Peter Lawrey](https://twitter.com/PeterLawrey) - Peter Lawrey, Java performance expert. -* [Randy Shoup](https://twitter.com/randyshoup) - Stitch Fix VP Engineering, speaker, JavaOne Rock Star. -* [Reza Rahman](https://twitter.com/reza_rahman) - Java EE/GlassFish/WebLogic evangelist, author, speaker, open source hacker. -* [Simon Maple](https://twitter.com/sjmaple) - Java Champion, VirtualJUG founder, LJC leader, RebelLabs author. -* [Stephen Colebourne](https://twitter.com/jodastephen) - Java Champion, speaker. -* [Trisha Gee](https://twitter.com/trisha_gee) - Java Champion and speaker. -* [Venkat Subramaniam](https://twitter.com/venkat_s) - Author, University of Houston professor, MicroSoft MVP award recipient, JavaOne Rock Star, Java Champion. +- [Adam Bien](https://twitter.com/AdamBien) - Freelance author, JavaOne Rockstar speaker, consultant, Java Champion. +- [Aleksey Shipilëv](https://twitter.com/shipilev) - Performance geek, benchmarking czar, concurrency bug hunter. +- [Antonio Goncalves](https://twitter.com/agoncal) - Java Champion, JUG Leader, Devoxx France, Java EE 6/7, JCP, Author. +- [Arun Gupta](https://twitter.com/arungupta) - Java Champion, JavaOne Rockstar, JUG Leader, Devoxx4Kids-er, VP of Developer Advocacy at Couchbase. +- [Brian Goetz](https://twitter.com/BrianGoetz) - Java Language Architect at Oracle. +- [Bruno Borges](https://twitter.com/brunoborges) - Product Manager/Java Jock at Oracle. +- [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. +- [Java Magazine](https://twitter.com/Oraclejavamag) - Official Java Magazine account. +- [Java](https://twitter.com/java) - Official Java Twitter account. +- [Javin Paul](https://twitter.com/javinpaul) - Well-known Java blogger. +- [Josh Long](https://twitter.com/starbuxman) - Spring Advocate at Pivotal, author of O'Reilly's *Cloud Native Java- and *Building Microservices with Spring Boot*, JavaOne Rock Star. +- [Lukas Eder](https://twitter.com/lukaseder) - Java Champion, speaker, JUG.ch co-leader, Founder and CEO Data Geekery (jOOQ). +- [Mario Fusco](https://twitter.com/mariofusco) - RedHatter, JUG coordinator, frequent speaker and author. +- [Mark Heckler](https://twitter.com/MkHeck) - Pivotal Principal Technologist and Developer Advocate, conference speaker, published author, and Java Champion, focusing on Internet of Things and the cloud. +- [Mark Reinhold](https://twitter.com/mreinhold) - Chief Architect, Java Platform Group, Oracle. +- [Markus Eisele](https://twitter.com/myfear) - Java EE evangelist, Red Hat. +- [Martijn Verburg](https://twitter.com/karianna) - London JUG co-leader, speaker, author, Java Champion and much more. +- [Martin Thompson](https://twitter.com/mjpt777) - Pasty faced performance gangster. +- [Monica Beckwith](https://twitter.com/mon_beck) - Performance consultant, JavaOne Rock Star. +- [OpenJDK](https://twitter.com/OpenJDK) - Official OpenJDK account. +- [Peter Lawrey](https://twitter.com/PeterLawrey) - Peter Lawrey, Java performance expert. +- [Randy Shoup](https://twitter.com/randyshoup) - Stitch Fix VP Engineering, speaker, JavaOne Rock Star. +- [Reza Rahman](https://twitter.com/reza_rahman) - Java EE/GlassFish/WebLogic evangelist, author, speaker, open source hacker. +- [Simon Maple](https://twitter.com/sjmaple) - Java Champion, VirtualJUG founder, LJC leader, RebelLabs author. +- [Stephen Colebourne](https://twitter.com/jodastephen) - Java Champion, speaker. +- [Trisha Gee](https://twitter.com/trisha_gee) - Java Champion and speaker. +- [Venkat Subramaniam](https://twitter.com/venkat_s) - Author, University of Houston professor, MicroSoft MVP award recipient, JavaOne Rock Star, Java Champion. ## Websites *Sites to read.* -* [Google Java Style](https://google.github.io/styleguide/javaguide.html) -* [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](https://www.javaworld.com) -* [JAXenter](https://jaxenter.com) -* [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) -* [Voxxed](https://www.voxxed.com) +- [Google Java Style](https://google.github.io/styleguide/javaguide.html) +- [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](https://www.javaworld.com) +- [JAXenter](https://jaxenter.com) +- [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) +- [Voxxed](https://www.voxxed.com) # Contributing