diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index 1c4ddd2..1dc2762 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -1,14 +1,24 @@ # Contribution Guidelines -Unfortunately, not every library/tool/framework can be considered. The aim of the list is to provide a concise list of noteworthy modern software. This means that suggested software is either +Unfortunately, not every library/tool/framework can be considered. This list aims to provide a concise list of noteworthy modern software. This means that suggested software is: -(a) widely recommended regardless of personal opinion +(a) widely recommended, regardless of personal opinion (b) highly discussed in the community due to its innovative nature (c) absolutely unique in its approach and function -(d) a niche product that fills a gap +(d) a niche product that fills a gap + +Suggested software must also be developer-friendly, which means it meets the following criteria: + +(i) If an open source *application*, it is licensed under one of the open source licenses listed on https://opensource.org/licenses. + +(ii) If an open source *library*, it is licensed under one of the open source licenses listed on https://opensource.org/licenses, with the exception of GPL and AGPL (due to their viral nature). + +(iii) If commercial, it has clear pricing. + +## Pull Requests There are two required criteria for a pull request: @@ -16,9 +26,13 @@ There are two required criteria for a pull request: 2. If an entry does not meet conditions *(a)* to *(d)* there has to be an explanation either in the description or the pull request why it should be added to the list. -Self-promotion is frowned upon and will be reviewed critically but the suggestion will of course be approved if they criteria match. +3. If an entry doesn't fit any of the pre-existing specialised sections, it should go under Miscellaneous. -If a certain entry does not get accepted, you should first look if there has been a discussion before. These discussions are in the issue section and normally marked with the question tag. If there hasn't been such a topic, you are free to create a new issue tagged as question. +4. If two or more entries in Miscellaneous are in the same domain, then they can be moved to a new specialised section. + +Self-promotion is frowned upon and viewed critically, but your suggestion will of course be approved if the criteria match. + +If your entry isn't accepted, please check the [Issues](https://github.com/akullpp/awesome-java/issues) for items marked with the "question" tag to see if it had been previously discussed. If nothing comes up, feel free to create a new issue, adding the "question" tag. Furthermore, please ensure your pull request follows the following guidelines: @@ -26,7 +40,7 @@ Furthermore, please ensure your pull request follows the following guidelines: * Please make an individual pull request for each suggestion. * Use the following format for libraries: \[LIBRARY\]\(LINK\) - DESCRIPTION. * Entries should be sorted in ascending alphabetical order, i.e. a to z. -* New categories, or improvements to the existing categorization are welcome. +* New categories or improvements to the existing categorization are welcome. * Keep descriptions short, simple and unbiased. * End all descriptions with a full stop/period. * Check your spelling and grammar. diff --git a/README.md b/README.md index 840ba60..5d33152 100644 --- a/README.md +++ b/README.md @@ -16,7 +16,6 @@ A curated list of awesome Java frameworks, libraries and software. - [Compiler-compiler](#compiler-compiler) - [Configuration](#configuration) - [Constraint Satisfaction Problem Solver](#constraint-satisfaction-problem-solver) - - [Continuous Integration](#continuous-integration) - [CSV](#csv) - [Data structures](#data-structures) - [Database](#database) @@ -24,7 +23,6 @@ A curated list of awesome Java frameworks, libraries and software. - [Dependency Injection](#dependency-injection) - [Development](#development) - [Distributed Applications](#distributed-applications) - - [Distributed Databases](#distributed-databases) - [Distributed Transactions](#distributed-transactions) - [Distribution](#distribution) - [Document Processing](#document-processing) @@ -34,6 +32,7 @@ A curated list of awesome Java frameworks, libraries and software. - [Geospatial](#geospatial) - [GUI](#gui) - [High Performance](#high-performance) + - [HTTP Clients](#http-clients) - [Hypermedia Types](#hypermedia-types) - [IDE](#ide) - [Imagery](#imagery) @@ -68,103 +67,104 @@ A curated list of awesome Java frameworks, libraries and software. - [Web Crawling](#web-crawling) - [Web Frameworks](#web-frameworks) - [Resources](#resources) + - [Awesome Lists](#awesome-lists) - [Communities](#communities) - [Frontends](#frontends) - [Influential Books](#influential-books) - - [Podcasts](#podcasts) + - [Podcasts and Screencasts](#podcasts-and-screencasts) - [Twitter](#twitter) - [Websites](#websites) - [Contributing](#contributing) ## Ancients -*In existence since the beginning of time and which will continue being used long after the hype has waned.* +*In existence since the beginning of time, and which people will continue using long after the hype has waned.* * [Apache Ant](http://ant.apache.org/) - Build process management with XML. -* [Apache Hadoop](http://hadoop.apache.org/) - Storage and large-scale processing of data-sets on clusters of commodity hardware. +* [Apache Hadoop](http://hadoop.apache.org/) - Storage and large-scale processing of data sets on clusters of commodity hardware. * [Apache OpenNLP](https://opennlp.apache.org/) - Toolkit for common tasks like tokenization. -* [Apache Velocity](http://velocity.apache.org/) - Templates for HTML pages, emails or source code generation in general. -* [FreeMarker](http://freemarker.org/) - General templating engine without any heavyweight or opinionated dependencies. -* [GlassFish](https://glassfish.java.net/) - Application server and reference implementation for Java EE sponsored by Oracle. -* [GWT](http://www.gwtproject.org/) - Toolbox which includes a Java-to-JavaScript compiler for client-side code, XML parser, API for RPC, JUnit integration, internationalization support and widgets for the GUI. -* [Hamcrest](http://hamcrest.org/JavaHamcrest/) - Matchers that can be combined to create flexible expressions of intent. -* [HornetQ](http://hornetq.jboss.org/) - Clear, concise, modular and made to be embedded. -* [Hudson](http://hudson-ci.org/) - Continuous integration server still in active development. -* [Java Modeling Language (JML)](http://www.eecs.ucf.edu/~leavens/JML/) - Behavioral interface specification language that can be used to specify the behavior of code modules. It combines the design by contract approach of Eiffel and the model-based specification approach of the Larch family of interface specification languages, with some elements of the refinement calculus. Used by several other verification tools. +* [Apache Velocity](http://velocity.apache.org/) - A template engine for HTML pages, emails or source code generation. +* [FreeMarker](http://freemarker.org/) - General templating engine with no heavyweight or opinionated dependencies. +* [GlassFish](http://javaee.github.io/glassfish/) - Application server and reference implementation for Java EE, sponsored by Oracle. +* [GWT](http://www.gwtproject.org/) - Toolbox that includes a Java-to-JavaScript compiler for client-side code, XML parser, API for RPC, JUnit integration, internationalization support and widgets for the GUI. +* [Hamcrest](http://hamcrest.org/JavaHamcrest/) - Matchers that, when combined, create flexible expressions of intent. +* [HornetQ](http://hornetq.jboss.org/) - Clear, concise, modular and made for embedding. +* [Java Modeling Language (JML)](http://www.eecs.ucf.edu/~leavens/JML/) - Behavioral interface specification language useful for specifying the behavior of code modules. It combines Eiffel's Design by Contract approach with the model-based specification approach of the Larch family of interface specification languages, with some elements of the refinement calculus. Used by several other verification tools. * [JavaCC](https://javacc.org/) - Parser generator with syntactic lookahead. -* [JavaServer Faces](https://javaserverfaces.java.net/) - Oracle's open-source implementation of the JSF standard, Mojarra. -* [JavaServer Pages](https://jsp.java.net/) - Common templating for websites with custom tag libraries. +* [JavaServer Faces](http://javaee.github.io/javaserverfaces-spec/) - Oracle's open-source implementation of the JSF standard, Mojarra. +* [JavaServer Pages](http://javaee.github.io/javaee-jsp-api/) - Common templating for websites with custom tag libraries. * [JUnit](http://junit.org/) - Common testing framework. * [Launch4j](http://launch4j.sourceforge.net/) - Wraps JARs in lightweight and native Windows executables. * [Quartz](https://github.com/quartz-scheduler/quartz) - Open-source job scheduler library with Apache 2.0 license. -* [TestNG](http://testng.org/) - Testing framework. -* [Trove](http://trove.starlight-systems.com/) - Primitive collections. +* [RxJava](https://github.com/ReactiveX/RxJava) - Library for composing asynchronous and event-based programs using observable sequences from the JVM. +* [TestNG](http://testng.org/) - Testing framework inspired by JUnit and NUnit, with different functionalities. +* [Trove](http://trove.starlight-systems.com/) - High-performance primitive collections. ## Bean Mapping *Frameworks that ease bean mapping.* -* [Dozer](https://github.com/DozerMapper/dozer/) - Mapper that copies data from one object to another, using annotations, API or XML configuration. -* [JMapper](http://jmapper-framework.github.io/jmapper-core/) - Using byte code manipulation for lightning fast mapping. Supporting annotations, API or XML configuration. -* [MapStruct](https://github.com/mapstruct/mapstruct) - Code generator which simplifies mappings between different bean types, based on a convention over configuration approach. -* [ModelMapper](https://github.com/jhalterman/modelmapper) - ModelMapper is an intelligent object mapping library that automatically maps objects to each other. -* [Orika](https://github.com/orika-mapper/orika) - Orika is a Java Bean mapping framework that recursively copies (among other capabilities) data from one object to another. -* [Selma](https://github.com/xebia-france/selma) - Stupid Simple Statically Linked Mapper. Selma is an 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](http://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 which handle the build cycle and dependencies of an application.* +*Tools that handle the build cycle and dependencies of an application.* -* [Apache Maven](http://maven.apache.org/) - Declarative build and dependency management which favors convention over configuration. It might be preferable to Apache Ant which uses a rather procedural approach and can be difficult to maintain. -* [Bazel](http://bazel.io) - Build tool from Google that builds code quickly and reliably. -* [Gradle](http://gradle.org/) - Incremental builds which are programmed via Groovy instead of declaring XML. Works well with Maven's dependency management. +* [Apache Maven](http://maven.apache.org/) - Declarative build and dependency management that favors convention over configuration. It might be preferable to Apache Ant, which uses a rather procedural approach and can be difficult to maintain. +* [Bazel](http://bazel.io) - Tool from Google that builds code quickly and reliably. +* [Gradle](http://gradle.org/) - Incremental builds programmed via Groovy instead of declaring XML. Works well with Maven's dependency management. ## Bytecode Manipulation *Libraries to manipulate bytecode programmatically.* -* [ASM](http://asm.ow2.org/) - All purpose, low level, bytecode manipulation and analysis. +* [ASM](http://asm.ow2.org/) - All-purpose, low-level bytecode manipulation and analysis. * [Byte Buddy](http://bytebuddy.net/) - Further simplifies bytecode generation with a fluent API. -* [Byteman](http://byteman.jboss.org/) - Manipulate bytecode at runtime via DSL (rules) mainly for testing/troubleshooting. +* [Byteman](http://byteman.jboss.org/) - Manipulate bytecode at runtime via DSL (rules); mainly for testing/troubleshooting. * [cglib](https://github.com/cglib/cglib) - Bytecode generation library. -* [Javassist](http://jboss-javassist.github.io/javassist/) - Tries to simplify the editing of bytecode. +* [Javassist](http://jboss-javassist.github.io/javassist/) - Tries to simplify bytecode editing. ## Caching -*Libraries which provide caching facilities.* +*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. +* [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 which can dynamically manage applications inside of a cluster.* +*Frameworks that can dynamically manage applications inside of a cluster.* -* [Apache Aurora](http://aurora.apache.org/) - Apache Aurora is a Mesos framework for long-running services and cron jobs. +* [Apache Aurora](http://aurora.apache.org/) - Mesos framework for long-running services and cron jobs. * [Apache Mesos](http://mesos.apache.org/) - Abstracts CPU, memory, storage, and other compute resources away from machines. -* [Singularity](http://getsingularity.com/) - Singularity is a Mesos framework that makes deployment and operations easy. It supports web services, background workers, scheduled jobs, and one-off tasks. +* [Singularity](http://getsingularity.com/) - Mesos framework that makes deployment and operations easy. It supports web services, background workers, scheduled jobs, and one-off tasks. ## Code Analysis *Tools that provide metrics and quality measurements.* * [Checkstyle](https://github.com/checkstyle/checkstyle) - Static analysis of coding conventions and standards. -* [Codacy](https://www.codacy.com) - Continuous static analysis, code coverage, and software metrics to automate code reviews. * [Error Prone](https://github.com/google/error-prone) - Catches common programming mistakes as compile-time errors. * [FindBugs](http://findbugs.sourceforge.net/) - Static analysis of bytecode to find potential bugs. -* [Infer](http://fbinfer.com/) - Tool to produce a list of potential bugs. +* [Infer](https://github.com/facebook/infer) - Modern static analysis tool for verifying the correctness of code. * [jQAssistant](http://jqassistant.org/) - Static code analysis with Neo4J-based query language. * [PMD](https://github.com/pmd/pmd) - Source code analysis for finding bad coding practices. -* [SonarQube](http://www.sonarqube.org/) - Integrates other analysis components via plugins and provides an overview of the metrics over time. +* [Sourcetrail ![c]](https://www.sourcetrail.com) - Visual source code navigator. * [Spoon](https://github.com/INRIA/spoon/) - Library for analyzing and transforming Java source code. ## Code Coverage -*Frameworks and tools that enable collection of code coverage metrics for test suites.* +*Frameworks and tools that enable code coverage metrics collection for test suites.* -* [Clover](https://www.atlassian.com/software/clover/overview) - Proprietary code coverage tool by Atlassian that relies on source-code instrumentation, instead of bytecode instrumentation. -* [Cobertura](http://cobertura.github.io/cobertura/) - Relies on offline (or static) bytecode instrumentation and class loading to collect code coverage metrics; GPLv2 licensed. -* [JaCoCo](http://eclemma.org/jacoco/) - Framework that enables collection of code coverage metrics, using both offline and runtime bytecode instrumentation; prominently used by EclEmma, the Eclipse code-coverage plugin. +* [Clover ![c]](https://www.atlassian.com/software/clover/overview) - Relies on source-code instrumentation instead of bytecode instrumentation. +* [Cobertura](http://cobertura.github.io/cobertura/) - Relies on offline (or static) bytecode instrumentation and class loading to collect code coverage metrics. +* [JaCoCo](http://eclemma.org/jacoco/) - Framework that enables collection of code coverage metrics, using both offline and runtime bytecode instrumentation. ## Code Generators @@ -172,20 +172,22 @@ A curated list of awesome Java frameworks, libraries and software. * [ADT4J](https://github.com/sviperll/adt4j) - JSR-269 code generator for algebraic data types. * [Auto](https://github.com/google/auto) - Generates factory, service, and value classes. -* [FreeBuilder](https://github.com/google/FreeBuilder) - Automatic generation of the Builder pattern. +* [FreeBuilder](https://github.com/google/FreeBuilder) - Automatically generates the Builder pattern. * [Immutables](http://immutables.github.io/) - Annotation processors to generate simple, safe and consistent value objects. +* [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 which aims to reduce verbosity. +* [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 like arguments similar to javac. -* [JCommander](http://jcommander.org/) - Command line arguments parsing framework with custom types and validation via implementing interfaces. -* [JOpt Simple](http://pholser.github.io/jopt-simple/) - Simple parser that uses the POSIX getopt() and GNU getopt_long() syntaxes. Does not use annotations, uses a fluent API instead. +* [Airline](https://github.com/airlift/airline) - Annotation-based framework for parsing Git-like command-line arguments. +* [args4j](http://args4j.kohsuke.org/) - Small library to parse command-line arguments. +* [JCommander](http://jcommander.org/) - Command-line argument-parsing framework with custom types and validation via implementing interfaces. +* [JOpt Simple](http://pholser.github.io/jopt-simple/) - Simple parser that uses the POSIX getopt() and GNU getopt_long() syntaxes. Uses a fluent API instead of annotations. +* [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 @@ -198,79 +200,75 @@ A curated list of awesome Java frameworks, libraries and software. *Libraries that provide external configuration.* +* [centraldogma](https://github.com/line/centraldogma) - Highly-available version-controlled service configuration repository based on Git, ZooKeeper and HTTP/2. +* [cfg4j](https://github.com/cfg4j/cfg4j) - Modern configuration library for distributed apps written in Java. * [config](https://github.com/typesafehub/config) - Configuration library for JVM languages. * [ini4j](http://ini4j.sourceforge.net/) - Provides an API for handling Windows' INI files. +* [KAConf](https://github.com/mariomac/kaconf) - Annotation-based configuration system for Java and Kotlin. * [owner](https://github.com/lviggiano/owner) - Reduces boilerplate of properties. -- [KAConf](https://github.com/mariomac/kaconf) - Annotation-based configuration system for Java and Kotlin. ## Constraint Satisfaction Problem Solver -*Libraries that help on implementing optimization and satisfiability problems.* +*Libraries that help with implementing optimization and satisfiability problems.* -* [Choco](http://choco-solver.org/) - Off-the-shelf constraint satisfaction problem solver, which uses constraint programming techniques. +* [Choco](http://choco-solver.org/) - Off-the-shelf constraint satisfaction problem solver that uses constraint programming techniques. * [JaCoP](https://github.com/radsz/jacop/) - Includes an interface for the FlatZinc language, enabling it to execute MiniZinc models. * [OptaPlanner](http://www.optaplanner.org/) - Business planning and resource scheduling optimization solver. -## Continuous Integration - -*Tools which support continuously building, testing and releasing applications.* - -* [Bamboo ![c]](https://www.atlassian.com/software/bamboo) - Atlassian's solution with good integration of their other products. You can either apply for an open-source license or buy it. -* [Concourse](https://concourse.ci/) - Provides dockerized pipeline with configuration that can be saved in version control. -* [fabric8](http://fabric8.io/) - Integration platform for containers. -* [Go](https://www.thoughtworks.com/go/) - ThoughtWork's open-source solution. -* [Jenkins](http://jenkins-ci.org/) - Provides server-based deployment services. -* [Semaphore](https://semaphoreci.com) - Hosted CI/CD service, free for open-source and 100 private builds with native Docker support. -* [TeamCity](http://www.jetbrains.com/teamcity/) - JetBrain's CI solution with a free version. -* [Travis](https://travis-ci.org) - Hosted service often used for open-source projects. - ## CSV *Frameworks and libraries that simplify reading/writing CSV data.* +* [Apache Commons CSV](https://github.com/apache/commons-csv) - Provides a simple interface for reading and writing CSV files of various types. * [jackson-dataformat-csv](https://github.com/FasterXML/jackson-dataformat-csv) - Jackson extension for reading and writing CSV. * [opencsv](http://opencsv.sourceforge.net) - Simple CSV parser. * [Super CSV](http://super-csv.github.io/super-csv/) - Powerful CSV parser with support for Dozer, Joda-Time and Java 8. -* [uniVocity-parsers](https://github.com/uniVocity/univocity-parsers) - One of the fastest and most feature-complete CSV. Also comes with parsers for TSV and fixed width records. +* [uniVocity-parsers](https://github.com/uniVocity/univocity-parsers) - One of the fastest and most feature-complete parsers. Also comes with parsers for TSV and fixed-width records. ## Database -*Everything which simplifies interactions with the database.* +*Everything that simplifies interactions with the database.* -* [Apache Hive](https://hive.apache.org/) - Data warehouse infrastructure built on top of Hadoop. -* [Apache Phoenix](http://phoenix.apache.org/) - High performance relational database layer over HBase for low latency applications. -* [Chronicle Map](https://github.com/OpenHFT/Chronicle-Map) - Efficient in-memory (opt. persisted to disk) off-heap key-value store. +* [Apache Phoenix](http://phoenix.apache.org/) - High-performance relational database layer over HBase for low-latency applications. +* [Chronicle Map](https://github.com/OpenHFT/Chronicle-Map) - Efficient, in-memory (opt. persisted to disk), off-heap key-value store. * [eXist](https://github.com/eXist-db/exist) - A NoSQL document database and application platform. * [FlexyPool](https://github.com/vladmihalcea/flexy-pool) - Brings metrics and failover strategies to the most common connection pooling solutions. * [Flyway](https://flywaydb.org/) - Simple database migration tool. -* [H2](http://h2database.com/) - Small SQL Database notable for its in-memory functionality. -* [HikariCP](https://github.com/brettwooldridge/HikariCP) - High performance JDBC connection pool. +* [H2](http://h2database.com/) - Small SQL database notable for its in-memory functionality. +* [HikariCP](https://github.com/brettwooldridge/HikariCP) - High-performance JDBC connection pool. * [JDBI](http://jdbi.org/) - Convenient abstraction of JDBC. -* [Jedis](https://github.com/xetorthio/jedis) - A small client for interaction with redis, with methods for commands. -* [jetcd](https://github.com/justinsb/jetcd) - A client library for etcd. +* [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](http://www.jooq.org/) - Generates typesafe code based on SQL schema. * [Liquibase](http://www.liquibase.org/) - Database-independent library for tracking, managing and applying database schema changes. * [MapDB](http://www.mapdb.org/) - Embedded database engine that provides concurrent collections backed on disk or in off-heap memory. -* [MariaDB4j](https://github.com/vorburger/MariaDB4j/) - Launcher for MariaDB which requires no installation or external dependencies. +* [MariaDB4j](https://github.com/vorburger/MariaDB4j/) - Launcher for MariaDB that requires no installation or external dependencies. +* [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. -* [Speedment](https://github.com/speedment/speedment) - Database access library that utilizes the Java 8 Stream API for querying. +* [requery](https://github.com/requery/requery) - A modern, lightweight but powerful object mapping and SQL generator. Easily map to or create databases, or perform queries and updates from any Java-using platform. +* [Speedment](https://github.com/speedment/speedment) - Database access library that utilizes Java 8's Stream API for querying. * [sql2o](http://sql2o.org/) - Thin JDBC wrapper that simplifies database access and provides simple mapping of ResultSets to POJOs. -* [Vibur DBCP](http://www.vibur.org/) - JDBC connection pool library which offers advanced performance monitoring capabilities. +* [Vibur DBCP](http://www.vibur.org/) - JDBC connection pool library with advanced performance monitoring capabilities. +* [Xodus](http://jetbrains.github.io/xodus/) - Highly concurrent transactional schema-less and ACID-compliant embedded database. -## Data structures +## Data Structures *Efficient and specific data structures.* -* [Apache Avro](https://avro.apache.org/) - Data interchange format featuring among others: dynamic typing, untagged data, absence of manually assigned IDs. -* [Apache Orc](https://orc.apache.org/) - Fast and efficient columnar storage format for hadoop based workloads. -* [Apache Parquet](http://parquet.apache.org/) - Columnar storage format based on assembly algorithms from the Dremel paper by Google. +* [Apache Avro](https://avro.apache.org/) - Data interchange format with dynamic typing, untagged data, and absence of manually assigned IDs. +* [Apache Orc](https://orc.apache.org/) - Fast and efficient columnar storage format for Hadoop-based workloads. +* [Apache Parquet](http://parquet.apache.org/) - Columnar storage format based on assembly algorithms from Google's paper on Dremel. * [Apache Thrift](https://thrift.apache.org/) - Data interchange format that originated at Facebook. +* [Big Queue](https://github.com/bulldog2011/bigqueue) - A big, fast and persistent queue based on memory-mapped files. * [Persistent Collection](http://pcollections.org/) - Persistent and immutable analogue of the Java Collections Framework. * [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 @@ -278,9 +276,8 @@ A curated list of awesome Java frameworks, libraries and software. *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) - Parsing and building iCalendar [RFC 5545](https://tools.ietf.org/html/rfc5545) data models. -* [Joda-Time](http://www.joda.org/joda-time/) - De facto standard date/time-library before Java 8. -* [ThreeTenBP](https://github.com/ThreeTen/threetenbp) - Port of JSR 310 (java.time package) by the author of Joda-Time. +* [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 @@ -289,49 +286,43 @@ A curated list of awesome Java frameworks, libraries and software. * [Apache DeltaSpike](https://deltaspike.apache.org/) - CDI extension framework. * [Dagger2](http://google.github.io/dagger/) - Compile-time injection framework without reflection. +* [Feather](https://github.com/zsoltherpai/feather) - Ultra-lightweight, JSR-330-compliant dependency injection library. * [Governator](https://github.com/Netflix/governator) - Extensions and utilities that enhance Google Guice. -* [Guice](https://github.com/google/guice) - Lightweight but powerful framework that completes Dagger. -* [HK2](https://hk2.java.net) - Light-weight and dynamic dependency injection framework. +* [Guice](https://github.com/google/guice) - Lightweight and opinionated framework that completes Dagger. +* [HK2](http://javaee.github.io/hk2) - Lightweight and dynamic dependency injection framework. ## Development *Augmentation of the development process at a fundamental level.* * [AspectJ](https://eclipse.org/aspectj/) - Seamless aspect-oriented programming extension. -* [DCEVM](http://dcevm.github.io/) - Modification of the JVM that allows unlimited redefinition of loaded classes at runtime. +* [DCEVM](http://dcevm.github.io/) - JVM modification that allows unlimited redefinition of loaded classes at runtime. * [Faux Pas](https://github.com/zalando/faux-pas) - Library that simplifies error handling by circumventing the issue that none of the functional interfaces in the Java Runtime is allowed by default to throw checked exceptions. * [HotswapAgent](https://github.com/HotswapProjects/HotswapAgent) - Unlimited runtime class and resource redefinition. * [JavaParser](https://github.com/javaparser/javaparser) - Parse, modify and generate Java code. * [JavaSymbolSolver](https://github.com/javaparser/javasymbolsolver) - A symbol solver for Java. * [JRebel ![c]](http://zeroturnaround.com/software/jrebel/) - Instantly reloads code and configuration changes without redeploys. -* [Spring Loaded](https://github.com/spring-projects/spring-loaded) - Class reloading agent. +* [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.* -* [Akka](http://akka.io) - Toolkit and runtime for building concurrent, distributed, and fault tolerant event-driven applications. +* [Apache Geode](http://geode.apache.org/) - In-memory data management system that provides reliable asynchronous event notifications and guaranteed message delivery. * [Apache Storm](http://storm.apache.org/) - Realtime computation system. * [Apache ZooKeeper](http://zookeeper.apache.org/) - Coordination service with distributed configuration, synchronization, and naming registry for large distributed systems. * [Atomix](http://atomix.io/atomix/) - Fault-tolerant distributed coordination framework. * [Axon Framework](http://www.axonframework.org/) - Framework for creating CQRS applications. * [Copycat](http://atomix.io/copycat/) - Fault-tolerant state machine replication framework. +* [Dropwizard Circuit Breaker](https://github.com/mtakaki/dropwizard-circuitbreaker) - Circuit breaker design pattern for Dropwizard. +* [Failsafe](https://github.com/jhalterman/failsafe) - Simple failure handling with retries and circuit breakers. * [Hazelcast ![c]](http://hazelcast.org/) - Highly scalable in-memory datagrid with a free open-source version. * [Hystrix](https://github.com/Netflix/Hystrix) - Provides latency and fault tolerance. -* [JGroups](http://www.jgroups.org/) - Toolkit for reliable messaging and creating clusters. -* [Orbit](http://www.orbit.cloud/) - Virtual Actors, adding another level of abstraction to traditional actors. +* [JGroups](http://www.jgroups.org/) - Toolkit for reliable messaging and cluster creation. +* [Orbit](http://www.orbit.cloud/) - Virtual actors; adds another level of abstraction to traditional actors. * [Quasar](http://www.paralleluniverse.co/quasar/) - Lightweight threads and actors for the JVM. - -## Distributed Databases - -*Databases in a distributed system that appear to applications as a single data source.* - -* [Apache Cassandra](http://cassandra.apache.org) - Column-oriented and providing high availability with no single point of failure. -* [Apache HBase](http://hbase.apache.org) - Hadoop database for big data. -* [Druid](http://druid.io) - Real-time and historical OLAP data store that excel at aggregation and approximation queries. -* [Infinispan](http://infinispan.org/) - Highly concurrent key/value datastore used for caching. -* [OpenTSDB](http://opentsdb.net) - Scalable and distributed time series database written on top of Apache HBase. -* [OrientDB](https://orientdb.com/orientdb/) - Embeddable distributed database written on top of Hazelcast. +* [resilience4j](https://github.com/resilience4j/resilience4j) - Functional fault tolerance library. +* [Zuul](https://github.com/Netflix/zuul) - A gateway service that provides dynamic routing, monitoring, resiliency, security, and more. ## Distributed Transactions @@ -343,14 +334,14 @@ A curated list of awesome Java frameworks, libraries and software. ## Distribution -*Tools which handle the distribution of applications in native formats.* +*Tools that handle the distribution of applications in native formats.* -* [Bintray ![c]](https://bintray.com/) - Version control for binaries which handles the publishing. Can also be used with Maven or Gradle and has a free plan for open-source software or several business plans. -* [Boxfuse](https://boxfuse.com) - Deployment of JVM application to AWS using the principles of Immutable Infrastructure. -* [Capsule](http://www.capsule.io/) - Simple and powerful packaging and deployment. A fat JAR on steroids or a "Docker for Java" that supports JVM-optimized containers. -* [Central Repository](http://search.maven.org/) - Largest binary component repository available as a free service to the open-source community. Default used by Apache Maven and available in all other build tools. +* [Bintray ![c]](https://bintray.com/) - Version control for binaries that handle publishing. Compatible with Maven or Gradle, with a free plan for open-source software as well as several business plans. +* [Boxfuse](https://boxfuse.com) - Deployment of JVM applications to AWS using the principles of immutable infrastructure. +* [Capsule](http://www.capsule.io/) - Simple and powerful packaging and deployment. A fat JAR on steroids, or a "Docker for Java" that supports JVM-optimized containers. +* [Central Repository](http://search.maven.org/) - Largest binary component repository available as a free service to the open-source community. Default used by Apache Maven, and available in all other build tools. * [IzPack](http://izpack.org/) - Setup authoring tool for cross-platform deployments. -* [JitPack](https://jitpack.io/) - Easy to use package repository for GitHub. Builds Maven/Gradle projects on demand and publishes ready-to-use packages. +* [JitPack](https://jitpack.io/) - Easy-to-use package repository for GitHub. Builds Maven/Gradle projects on demand and publishes ready-to-use packages. * [Nexus ![c]](http://www.sonatype.com/nexus/solution-overview) - Binary management with proxy and caching capabilities. * [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. @@ -361,7 +352,7 @@ A curated list of awesome Java frameworks, libraries and software. * [Apache POI](http://poi.apache.org/) - Supports OOXML (XLSX, DOCX, PPTX) as well as OLE2 (XLS, DOC or PPT). * [documents4j](http://documents4j.com) - API for document format conversion using third-party converters such as MS Word. -* [docx4j](http://www.docx4java.org/trac/docx4j) - Creating and manipulating Microsoft Open XML files. +* [docx4j](http://www.docx4java.org/trac/docx4j) - Create and manipulate Microsoft Open XML files. ## Formal Verification @@ -369,10 +360,10 @@ A curated list of awesome Java frameworks, libraries and software. * [CATG](https://github.com/ksen007/janala2) - Concolic unit testing engine. Automatically generates unit tests using formal methods. * [Checker Framework](http://types.cs.washington.edu/checker-framework/) - Pluggable type systems. Includes nullness types, physical units, immutability types and more. -* [Daikon](http://plse.cs.washington.edu/daikon/) - Daikon detects likely program invariants and can generate JML specs based on those invariants. +* [Daikon](http://plse.cs.washington.edu/daikon/) - Detects likely program invariants and generates JML specs based on those invariants. * [Java Path Finder (JPF)](http://babelfish.arc.nasa.gov/trac/jpf) - JVM formal verification tool containing a model checker and more. Created by NASA. -* [JMLOK 2.0](http://massoni.computacao.ufcg.edu.br/home/jmlok) - Detects nonconformances between code and JML specification through the feedback-directed random tests generation, and suggests a likely cause for each nonconformance detected. -* [KeY](http://key-project.org/) - The KeY System is a formal software development tool that aims to integrate design, implementation, formal specification, and formal verification of object-oriented software as seamlessly as possible. Uses JML for specification and symbolic execution for verification. +* [JMLOK 2.0](http://massoni.computacao.ufcg.edu.br/home/jmlok) - Detects inconsistencies between code and JML specification through feedback-directed random tests generation, and suggests a likely cause for each nonconformance detected. +* [KeY](http://key-project.org/) - Formal software development tool that aims to integrate design, implementation, formal specification, and formal verification of object-oriented software as seamlessly as possible. Uses JML for specification and symbolic execution for verification. * [OpenJML](http://openjml.github.io/) - Translates JML specifications into SMT-LIB format and passes the proof problems implied by the program to backend solvers. ## Functional Programming @@ -380,12 +371,12 @@ A curated list of awesome Java frameworks, libraries and software. *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, morphisms. +* [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 which aims to fix gaps in lambda, providing numerous missing types and a rich set of sequential Stream API additions. +* [jOOλ](https://github.com/jOOQ/jOOL) - Extension to Java 8 that aims to fix gaps in lambda by providing numerous missing types and a rich set of sequential Stream API additions. * [protonpack](https://github.com/poetix/protonpack) - Collection of stream utilities. -* [StreamEx](https://github.com/amaembo/streamex) - Enhancing Java 8 Streams. +* [StreamEx](https://github.com/amaembo/streamex) - Enhances Java 8 Streams. * [Vavr](http://www.vavr.io/) - Functional component library that provides persistent data types and functional control structures. ## Game Development @@ -404,11 +395,11 @@ A curated list of awesome Java frameworks, libraries and software. * [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 Java library or standalone web service. +* [GraphHopper](https://github.com/graphhopper/graphhopper) - Road-routing engine. Used as a Java library or standalone web service. * [H2GIS](http://www.h2gis.org/) - A spatial extension of the H2 database. -* [Jgeohash](http://astrapi69.github.io/jgeohash/) - Library that can assist Java developers in using the GeoHash algorithm. -* [Mapsforge](https://github.com/mapsforge/mapsforge/) - Software for the rendering of maps based on OpenStreetMap data. -* [Spatial4j](https://github.com/locationtech/spatial4j/) - General purpose spatial/geospatial ASL licensed open-source Java library. +* [Jgeohash](http://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 @@ -416,11 +407,11 @@ A curated list of awesome Java frameworks, libraries and software. * [JavaFX](http://www.oracle.com/technetwork/java/javase/overview/javafx-overview-2158620.html) - The successor of Swing. * [Scene Builder](http://gluonhq.com/open-source/scene-builder/) - Visual layout tool for JavaFX applications. -* [SWT](http://www.eclipse.org/swt/) - The Standard Widget Toolkit (SWT) is a graphical widget toolkit for use with the Java platform. +* [SWT](http://www.eclipse.org/swt/) - The Standard Widget Toolkit, a graphical widget toolkit. ## High Performance -*Everything about high performance computation, from collections to specific libraries.* +*Everything about high-performance computation, from collections to specific libraries.* * [Agrona](https://github.com/real-logic/Agrona) - Data structures and utility methods that are common in high-performance applications. * [Disruptor](http://lmax-exchange.github.io/disruptor/) - Inter-thread messaging library. @@ -430,6 +421,18 @@ A curated list of awesome Java frameworks, libraries and software. * [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](http://square.github.io/okhttp/) - HTTP+SPDY client. +* [restQL-core](https://github.com/B2W-BIT/restQL-core) - Microservice query language that fetches information from multiple services. +* [Retrofit](http://square.github.io/retrofit/) - Typesafe REST client. +* [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.* @@ -441,31 +444,34 @@ A curated list of awesome Java frameworks, libraries and software. *Integrated development environments that try to simplify several aspects of development.* -* [Eclipse](http://www.eclipse.org/) - Established, open-souce project with support for lots of plugins and languages. -* [IntelliJ IDEA ![c]](http://www.jetbrains.com/idea/) - Supports a lot of JVM languages and provides good options for Android development. The commercial edition targets the enterprise sector. -* [NetBeans](https://netbeans.org/) - Provides integration for several Java SE and EE features from database access to HTML5. +* [Eclipse](http://www.eclipse.org/) - Established open-source project with support for lots of plugins and languages. +* [IntelliJ IDEA ![c]](http://www.jetbrains.com/idea/) - Supports many JVM languages and provides good options for Android development. The commercial edition targets the enterprise sector. +* [NetBeans](https://netbeans.org/) - Provides integration for several Java SE and EE features, from database access to HTML5. ## Imagery *Libraries that assist with the creation, evaluation or manipulation of graphical images.* -* [Imgscalr](https://github.com/thebuzzmedia/imgscalr) - Simple and efficient hardware-accelerated image-scaling library implemented in pure Java 2D. +* [Imgscalr](https://github.com/thebuzzmedia/imgscalr) - Simple, efficient and hardware-accelerated image-scaling library implemented in pure Java 2D. * [Tess4J](https://github.com/nguyenq/tess4j) - A JNA wrapper for Tesseract OCR API. -* [Thumbnailator](https://github.com/coobird/thumbnailator) - Thumbnailator is a high-quality thumbnail generation library for Java. -* [TwelveMonkeys](https://github.com/haraldk/TwelveMonkeys) - Collection of plugins which extend the number of supported image file formats. +* [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.* -* [Genson](http://owlike.github.io/genson/) - Powerful and easy to use Java to JSON conversion library. +* [Genson](http://owlike.github.io/genson/) - Powerful and easy-to-use Java-to-JSON conversion library. * [Gson](https://github.com/google/gson) - Serializes objects to JSON and vice versa. Good performance with on-the-fly usage. +* [HikariJSON](https://github.com/brettwooldridge/HikariJSON) - High-performance JSON parser, 2x faster than Jackson. * [Jackson-datatype-money](https://github.com/zalando/jackson-datatype-money) - Open-source Jackson module to support JSON serialization and deserialization of JavaMoney data types. -* [Jackson](http://wiki.fasterxml.com/JacksonHome) - Similar to GSON but has performance gains if you need to instantiate the library more often. +* [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 @@ -473,18 +479,18 @@ A curated list of awesome Java frameworks, libraries and software. * [fastjson](https://github.com/alibaba/fastjson) - Very fast processor with no additional dependencies and full data binding. * [Jolt](https://github.com/bazaarvoice/jolt) - JSON to JSON transformation tool. -* [JsonPath](https://github.com/jayway/JsonPath) - Extract data from JSON using XPATH like syntax. +* [JsonPath](https://github.com/jayway/JsonPath) - Extract data from JSON using XPATH-like syntax. * [JsonSurfer](https://github.com/jsurfer/JsonSurfer) - Streaming JsonPath processor dedicated to processing big and complicated JSON data. ## JVM and JDK *Current implementations of the JVM/JDK.* -* [Avian](https://github.com/ReadyTalk/avian) - JVM with both a JIT & AOT modes. Includes an iOS port. -* [JDK 9](https://jdk9.java.net/) - Early access releases of JDK 9. +* [Avian](https://github.com/ReadyTalk/avian) - JVM with both JIT and AOT modes. Includes an iOS port. +* [OpenJ9](https://github.com/eclipse/openj9) - High performance, enterprise calibre, flexibly licensed, openly governed cross platform Java Virtual Machine extending and augmenting the runtime technology components from the Eclipse OMR and OpenJDK project. * [OpenJDK](http://openjdk.java.net/) - Open-source implementation for Linux. -* [ParparVM](https://github.com/codenameone/CodenameOne/tree/master/vm) - VM with non-blocking concurrent GC for iOS. -* [Zulu OpenJDK 9](http://zulu.org/zulu-9-pre-release-downloads/) - Early access OpenJDK 9 builds for Windows, Linux, and Mac OS X. +* [ParparVM](https://github.com/codenameone/CodenameOne/tree/master/vm) - VM with non-blocking, concurrent GC for iOS. +* [Zulu OpenJDK 9](http://zulu.org/zulu-9-pre-release-downloads/) - Early-access OpenJDK 9 builds for Windows, Linux, and Mac OS X. * [Zulu OpenJDK](http://www.azul.com/downloads/zulu/) - OpenJDK builds for Windows, Linux, and Mac OS X through Java 8. ## Logging @@ -497,31 +503,31 @@ A curated list of awesome Java frameworks, libraries and software. * [Logback](http://logback.qos.ch/) - Robust logging library with interesting configuration options via Groovy. * [Logbook](https://github.com/zalando/logbook) - Extensible, open-source library for HTTP request and response logging. * [Logstash](https://www.elastic.co/products/logstash) - Tool for managing log files. -* [SLF4J](http://www.slf4j.org/) - Abstraction layer which is to be used with an implementation. +* [SLF4J](http://www.slf4j.org/) - Abstraction layer/simple logging facade. * [tinylog](http://www.tinylog.org/) - Lightweight logging framework with static logger class. * [Tracer](https://github.com/zalando/tracer) - Call tracing and log correlation in distributed systems. ## Machine Learning -*Tools that provide specific statistical algorithms which allow learning from data.* +*Tools that provide specific statistical algorithms for learning from data.* -* [Apache Flink](https://flink.apache.org/) - Fast and reliable large-scale data processing engine. +* [Apache Flink](https://flink.apache.org/) - Fast, reliable, large-scale data processing engine. * [Apache Mahout](https://mahout.apache.org/) - Scalable algorithms focused on collaborative filtering, clustering and classification. -* [Apache Spark](http://spark.apache.org/) - Data analytics cluster computing framework. +* [Apache Spark](http://spark.apache.org/) - Data analytics cluster-computing framework. * [DatumBox](http://www.datumbox.com) - Provides several algorithms and pre-trained models for natural language processing. * [DeepDive](http://deepdive.stanford.edu) - Creates structured information from unstructured data and integrates it into an existing database. * [Deeplearning4j](http://deeplearning4j.org/) - Distributed and multi-threaded deep learning library. * [H2O](http://www.h2o.ai/) - Analytics engine for statistics over big data. * [JSAT](https://github.com/EdwardRaff/JSAT) - Algorithms for pre-processing, classification, regression, and clustering with support for multi-threaded execution. -* [Oryx 2](https://github.com/OryxProject/oryx) - A framework for building real-time large scale machine learning applications, which also includes end-to-end applications for collaborative filtering, classification, regression, and clustering. +* [Oryx 2](https://github.com/OryxProject/oryx) - Framework for building real-time, large-scale machine learning applications. Includes end-to-end applications for collaborative filtering, classification, regression, and clustering. * [Smile](http://haifengl.github.io/smile/) - The Statistical Machine Intelligence and Learning Engine provides a set of machine learning algorithms and a visualization library. * [Weka](http://www.cs.waikato.ac.nz/ml/weka/) - Collection of algorithms for data mining tasks ranging from pre-processing to visualization. ## Messaging -*Tools that help to send messages between clients in order to ensure protocol independency.* +*Tools that help send messages between clients to ensure protocol independency.* -* [Aeron](https://github.com/real-logic/Aeron) - Efficient reliable unicast and multicast message transport. +* [Aeron](https://github.com/real-logic/Aeron) - Efficient, reliable, unicast and multicast message transport. * [Apache ActiveMQ](http://activemq.apache.org/) - Message broker that implements JMS and converts synchronous to asynchronous communication. * [Apache Camel](http://camel.apache.org/) - Glues together different transport APIs via Enterprise Integration Patterns. * [Apache Kafka](http://kafka.apache.org/) - High-throughput distributed messaging system. @@ -535,56 +541,61 @@ A curated list of awesome Java frameworks, libraries and software. *Everything else.* -* [Codename One](https://www.codenameone.com/) - Cross platform solution for writing native mobile (iOS, Android, etc.) -* [CQEngine](https://github.com/npgall/cqengine) - Ultra-fast SQL-like queries on Java collections. +* [Codename One](https://www.codenameone.com/) - Cross-platform solution for writing native mobile (iOS, Android, etc.) apps. +* [CQEngine](https://github.com/npgall/cqengine) - Ultra-fast, SQL-like queries on Java collections. * [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. -* [J2ObjC](https://github.com/google/j2objc) - Java to Objective-C translator for porting Android libraries to iOS. -* [javaslang-circuitbreaker](https://github.com/javaslang/javaslang-circuitbreaker) - Functional fault tolerance library. +* [FF4J](http://www.ff4j.org/) - Feature Flags for Java. +* [J2ObjC](https://github.com/google/j2objc) - Java-to-Objective-C translator for porting Android libraries to iOS. * [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. +* [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. -* [Membrane Service Proxy](https://github.com/membrane/service-proxy) - An open source, reverse proxy framework written in Java. +* [Maven Wrapper](https://github.com/takari/maven-wrapper) - Analogue of Gradle Wrapper for Maven, allows build projects without installing maven. +* [Membrane Service Proxy](https://github.com/membrane/service-proxy) - An open-source, reverse-proxy framework written in Java. * [Modern Java - A Guide to Java 8](https://github.com/winterbe/java8-tutorial) - Popular Java 8 guide. * [Modernizer](https://github.com/andrewgaul/modernizer-maven-plugin) - Detect uses of legacy Java APIs. * [OpenRefine](http://openrefine.org/) - Tool for working with messy data: cleaning, transforming, extending it with web services and linking it to databases. -* [Polyglot for Maven](https://github.com/takari/polyglot-maven/) - Extensions for Maven 3.3.1+ that allows the POM model to be written in dialects other than XML. +* [Polyglot for Maven](https://github.com/takari/polyglot-maven/) - Extensions for Maven 3.3.1+ that allows writing the POM model in dialects other than XML. +* [Togglz](https://www.togglz.org/) - Implementation of the Feature Toggles pattern. * [TypeTools](https://github.com/jhalterman/typetools) - Tools for resolving generic types. +* [XMLBeam](https://github.com/SvenEwald/xmlbeam) - Processes XML by using annotations or XPath within code. ## Microservice -*Tools for managing microservices, i.e. creation, coordination or discovery.* +*Tools for managing microservices: i.e., creation, coordination or discovery.* * [Apollo](https://spotify.github.io/apollo/) - Libraries for writing composable microservices. -* [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. +* [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. -* [restQL-core](https://github.com/B2W-BIT/restQL-core) - Microservice query language that fetches information from multiple services. -* [SnopEE](https://github.com/ivargrimstad/snoop) - Discovery service for Java EE microservices. ## Monitoring *Tools that monitor applications in production.* * [AppDynamics ![c]](https://www.appdynamics.com/) - Performance monitor. -* [Glowroot](https://glowroot.org/) - Open source Java APM. +* [Automon](https://github.com/stevensouza/automon) - Combines the power of AOP with monitoring and/or logging tools. +* [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. * [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/) - Tool to connect to multiple JVMs and to query them for their attributes via JMX. Its query language is based on JSON, which allows non-Java programmers to access the JVMs attributes. Likewise, this tool supports different output writes, including Graphite, Ganglia, StatsD, among others. +* [jmxtrans](https://github.com/jmxtrans/jmxtrans/) - Connect to multiple JVMs and query them for their attributes via JMX. Its query language is based on JSON, which allows non-Java programmers to access the JVM attributes. Supports different output writes, including Graphite, Ganglia, and StatsD. * [Jolokia](https://jolokia.org/) - JMX over REST. * [Kamon](http://www.kamon.io/) - Tool for monitoring applications running on the JVM. -* [Metrics](http://metrics.dropwizard.io/) - Expose metrics via JMX or HTTP and can send them to a database. +* [Metrics](http://metrics.dropwizard.io/) - Expose metrics via JMX or HTTP and send them to a database. * [New Relic ![c]](http://newrelic.com/) - Performance monitor. * [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. +* [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. +* [Stagemonitor](https://github.com/stagemonitor/stagemonitor) - Open-source performance monitoring and transaction tracing for JVM apps. +* [Sysmon](https://github.com/palantir/Sysmon) - Lightweight platform monitoring tool for Java VMs. ## Native *For working with platform-specific native libraries.* @@ -595,60 +606,60 @@ A curated list of awesome Java frameworks, libraries and software. ## Natural Language Processing -*Libraries that specialize on processing text.* +*Libraries that specialize in processing text.* -* [CoreNLP](http://nlp.stanford.edu/software/corenlp.shtml) - Stanford's CoreNLP provides a set of fundamental tools for tasks like tagging, named entity recognition, sentiment analysis and many more. -* [DKPro](https://dkpro.github.io/) - A collection of re-usable NLP tools for linguistic pre-processing, machine learning, lexical resources, etc. -* [LingPipe](http://alias-i.com/lingpipe/) - Toolkit for a variety of tasks ranging from POS tagging to sentiment analysis. +* [CogCompNLP](https://github.com/CogComp/cogcomp-nlp) - Provides common annotators for plain text input. +* [CoreNLP](http://nlp.stanford.edu/software/corenlp.shtml) - Provides a set of fundamental tools for tasks like tagging, named entity recognition, and sentiment analysis. +* [DKPro](https://dkpro.github.io/) - 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 network programming.* +*Libraries for building network servers.* -* [Async Http Client](https://github.com/AsyncHttpClient/async-http-client) - Asynchronous HTTP and WebSocket client library. * [Comsat](https://github.com/puniverse/comsat) - Integrates standard Java web-related APIs with Quasar fibers and actors. -* [Finagle](https://github.com/twitter/finagle) - Extensible RPC system used to construct high-concurrency servers. It implements uniform client and server APIs for several protocols, and is protocol agnostic, which simplifies the implementation of new protocols. -* [Grizzly](https://grizzly.java.net/) - NIO framework. Used as a network layer in Glassfish. +* [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](http://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. -* [MINA](https://mina.apache.org/) - Abstract event-driven async I/O API for network operations over TCP/IP and UDP/IP via Java NIO. -* [Netty](http://netty.io/) - Framework for building high performance network applications. +* [KryoNet](https://github.com/EsotericSoftware/kryonet) - Provides a clean and simple API for efficient TCP and UDP client/server network communication using NIO and Kryo. +* [MINA](https://mina.apache.org/) - Abstract, event-driven async I/O API for network operations over TCP/IP and UDP/IP via Java NIO. +* [Netty](http://netty.io/) - Framework for building high-performance network applications. * [Nifty](https://github.com/facebook/nifty) - Implementation of Thrift clients and servers on Netty. -* [OkHttp](http://square.github.io/okhttp/) - HTTP+SPDY client. -* [Riptide](https://github.com/zalando/riptide) - Client-side response routing for Spring's RestTemplate. -* [Undertow](http://undertow.io/) - Web server providing both blocking and non-blocking API’s based on NIO. Used as a network layer in WildFly. -* [urnlib](https://github.com/slub/urnlib) - Java library for representing, parsing and encoding URNs as in RFC 2141. +* [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 which handle the persistence of objects.* +*APIs that handle the persistence of objects.* -* [Apache Cayenne](http://cayenne.apache.org/) - Provides clean, static API for data access. Also includes GUI Modeler for working with database mappings, DB reverse engineering and generation. +* [Apache Cayenne](http://cayenne.apache.org/) - Provides a clean, static API for data access. Also includes a GUI Modeler for working with database mappings, and DB reverse engineering and generation. * [Ebean](http://ebean-orm.github.io/) - Provides simple and fast data access. * [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. +* [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 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. +* [OpenShift Enterprise ![c]](https://www.openshift.com/) - On-premise solution. ## PDF -*Everything that helps with the creation of PDF files.* +*Tools to help with PDF file creation.* -* [Apache FOP](http://xmlgraphics.apache.org/fop/) - Creates PDF from XSL-FO. -* [Apache PDFBox](http://pdfbox.apache.org/) - Toolbox for creating and manipulating PDF. +* [Apache FOP](http://xmlgraphics.apache.org/fop/) - Creates PDFs from XSL-FO. +* [Apache PDFBox](http://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](http://itextpdf.com/) - Creates PDF files programmatically but requires a license for commercial purposes. +* [iText ![c]](http://itextpdf.com/) - Creates PDF files programmatically. * [JasperReports](http://community.jaspersoft.com/project/jasperreports-library) - Complex reporting engine. ## Performance analysis @@ -657,32 +668,31 @@ A curated list of awesome Java frameworks, libraries and software. * [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) - An low-overhead, bias-free sampling profiler. +* [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/) - JMH is 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) - Profiler. +* [JMH](http://openjdk.java.net/projects/code-tools/jmh/) - a Java harness for building, running, and analysing nano/micro/milli/macro benchmarks written in Java and other languages targeting the JVM. +* [JProfiler ![c]](https://www.ej-technologies.com/products/jprofiler/overview.html) - Database profiling for JDBC, JPA and NoSQL, with JEE support. * [LatencyUtils](https://github.com/LatencyUtils/LatencyUtils) - Utilities for latency measurement and reporting. -* [XRebel ![c]](http://zeroturnaround.com/software/xrebel/) - Profiler for web applications. -* [YourKit Java Profiler ![c]](https://www.yourkit.com/features/) - Profiler. +* [XRebel ![c]](http://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 *Frameworks that are suites of multiple libraries encompassing several categories.* -* [CUBA Platform](https://cuba-platform.com) - High level framework for development of enterprise applications with 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 [security](https://github.com/networknt/light-oauth2) built in. -* [Orienteer](https://github.com/OrienteerBAP/Orienteer) - Open source business application platform for rapid configuration/development of CRM, ERP, LMS and other applications. -* [Spring](http://projects.spring.io/spring-framework/) - Provides many packages ranging from dependency injection to aspect-oriented programming to security. - +* [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.* -* [Reactive Streams](https://github.com/reactive-streams/reactive-streams-jvm/) - Provide a standard for asynchronous stream processing with non-blocking backpressure. +* [Akka](http://akka.io) - Toolkit and runtime for building concurrent, distributed, fault-tolerant and event-driven applications. +* [Reactive Streams](https://github.com/reactive-streams/reactive-streams-jvm/) - Provides a standard for asynchronous stream processing with non-blocking backpressure. * [Reactor](http://projectreactor.io/) - Library for building reactive fast-data applications. -* [RxJava](https://github.com/ReactiveX/RxJava) - Library for composing asynchronous and event-based programs using observable sequences from the JVM. * [vert.x](http://vertx.io/) - Polyglot event-driven application framework. ## REST Frameworks @@ -690,116 +700,122 @@ A curated list of awesome Java frameworks, libraries and software. *Frameworks specifically for creating RESTful services.* * [Dropwizard](https://dropwizard.github.io/dropwizard/) - Opinionated framework for setting up modern web applications with Jetty, Jackson, Jersey and Metrics. -* [Feign](https://github.com/Netflix/feign) - HTTP client binder inspired by Retrofit, JAXRS-2.0, and WebSocket. -* [Jersey](https://jersey.java.net/) - JAX-RS reference implementation. -* [Microserver](https://github.com/aol/micro-server) — A convenient extensible Microservices plugin system for Spring & Spring Boot, with over 30 plugins and growing, that supports both micro-monolith and pure microservices styles. -* [RAML](http://raml.org/) - Modeling language to generate REST APIs with contract first. -* [Rapidoid](http://www.rapidoid.org/) - A simple, secure and extremely fast framework consisting of embedded HTTP server, GUI components and dependency injection. -* [rest.li](https://github.com/linkedin/rest.li) - Framework for building robust, scalable RESTful architectures using type-safe bindings and asynchronous, non-blocking IO with an end-to-end developer workflow that promotes clean practices, uniform interface design and consistent data modeling. +* [Jersey](https://jersey.github.io/) - JAX-RS reference implementation. +* [Microserver](https://github.com/aol/micro-server) — A convenient, extensible microservices plugin system for Spring & Spring Boot. With more than 30 plugins and growing, it supports both micro-monolith and pure microservices styles. +* [Rapidoid](http://www.rapidoid.org/) - A simple, secure and extremely fast framework consisting of an embedded HTTP server, GUI components and dependency injection. +* [rest.li](https://github.com/linkedin/rest.li) - Framework for building robust, scalable RESTful architectures using typesafe bindings and asynchronous, non-blocking IO with an end-to-end developer workflow that promotes clean practices, uniform interface design and consistent data modeling. * [RESTEasy](http://resteasy.jboss.org/) - Fully certified and portable implementation of the JAX-RS specification. -* [RestExpress](https://github.com/RestExpress/RestExpress) - Thin wrapper on the JBoss Netty HTTP stack to provide scaling and performance. -* [Restlet Framework](https://github.com/restlet/restlet-framework-java/) - Pioneering framework with powerful routing and filtering capabilities, unified client and server API. -* [Retrofit](http://square.github.io/retrofit/) - Type-safe REST client. +* [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. -* [Swagger](http://swagger.io/) - Swagger is a specification and complete framework implementation for describing, producing, consuming, and visualizing RESTful web services. ## 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 theoretic framework. -* [GraphStream](http://graphstream-project.org/) - Library for modeling and analysis of dynamic graphs. +* [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 visualisation (mainly Swing) and interaction with node-edge graphs. +* [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 which index documents for search and analysis.* +*Engines that index documents for search and analysis.* -* [Apache Lucene](https://lucene.apache.org/) - High-performance, full-featured cross-platform text search engine library. -* [Apache Solr](http://lucene.apache.org/solr/) - Enterprise search engine optimized for high volume traffic. -* [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](http://lucene.apache.org/solr/) - Enterprise search engine optimized for high-volume traffic. +* [Elasticsearch](https://www.elastic.co/) - Distributed, multitenant-capable, full-text search engine with a RESTful web interface and schema-free JSON documents. ## Security *Libraries that handle security, authentication, authorization or session management.* * [Apache Shiro](http://shiro.apache.org/) - Performs authentication, authorization, cryptography and session management. -* [Bouncy Castle](https://www.bouncycastle.org/java.html) - All-purpose cryptographic library. JCA provider, 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 self-protection against OWASP Top 10 security risks such us Insecure Direct Object References, SQL injection, Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF) and much more. -* [jjwt](https://github.com/jwtk/jjwt) - Java JWT: JSON Web Token for Java and Android. +* [Bouncy Castle](https://www.bouncycastle.org/java.html) - All-purpose cryptographic library and JCA provider offering a wide range of functions, from basic helpers to PGP/SMIME operations. +* [Cryptomator](https://cryptomator.org/) - Multiplatform, transparent, client-side encryption of files in the cloud. +* [Hdiv](https://github.com/hdiv/hdiv) - Runtime application that repels application security risks included in the OWASP Top 10, including SQL injection, cross-site scripting, cross-site request forgery, data tampering, and brute force attacks. +* [jjwt](https://github.com/jwtk/jjwt) - JSON web token for Java and Android. * [Keycloak](http://keycloak.jboss.org/) - Integrated SSO and IDM for browser apps and RESTful web services. -* [Keyczar](https://github.com/google/keyczar) - Easy to use, yet safe encryption framework with key versioning. +* [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. +* [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 which are specifically used to deploy applications.* +*Servers specifically used to deploy applications.* -* [Apache Tomcat](http://tomcat.apache.org/) - Robust all-round server for Servlet and JSP. +* [Apache Tomcat](http://tomcat.apache.org/) - Robust, all-round server for Servlet and JSP. * [Apache TomEE](http://tomee.apache.org/) - Tomcat plus Java EE. -* [Jetty](http://www.eclipse.org/jetty/) - Lightweight, small server, often embedded in projects. +* [Jetty](http://www.eclipse.org/jetty/) - Provides a Web server and javax.servlet container, plus support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations. * [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 which substitute expressions in a template.* +*Tools that substitute expressions in a template.* -* [Handlebars.java](http://jknack.github.io/handlebars.java/) - Logic-less and semantic Mustache templates. +* [Handlebars.java](http://jknack.github.io/handlebars.java/) - Logicless and semantic Mustache templates. * [Jtwig](http://jtwig.org/) - Modular, configurable and fully tested template engine. -* [Thymeleaf](http://www.thymeleaf.org/) - Aims to be a substitute for JSP and works for XML files in general. +* [Jade4J](https://github.com/neuland/jade4j) - Implementation of jade. +* [Pebble](http://www.mitchellbosecke.com/pebble/home) - Inspired by Twig and separates itself with it's inheritance feature and it's easy-to-read syntax. It ships with built-in autoescaping for security and it includes integrated support for internationalization. +* [Thymeleaf](http://www.thymeleaf.org/) - Aims to be a substitute for JSP and works for XML files. ## Testing *Tools that test from model to the view.* * [Apache JMeter](http://jmeter.apache.org/) - Functional testing and performance measurements. +* [ArchUnit](https://github.com/TNG/ArchUnit) - Test library for specifying and asserting architecture rules. * [Arquillian](http://arquillian.org/) - Integration and functional testing platform for Java EE containers. * [AssertJ](http://joel-costigliola.github.io/assertj/) - Fluent assertions that improve readability. * [Awaitility](https://github.com/jayway/awaitility) - DSL for synchronizing asynchronous operations. -* [Citrus](http://citrusframework.org/) - Integration testing framework with focus on client- and serverside messaging. +* [Beanmother](https://github.com/keepcosmos/beanmother) - Sets up beans from YAML fixtures. +* [Burst](https://github.com/square/burst) - A unit testing library for varying test data. +* [Citrus](http://citrusframework.org/) - Integration testing framework that focuses on both client- and server-side messaging. * [ConcurrentUnit](https://github.com/jhalterman/concurrentunit) - Toolkit for testing multi-threaded and asynchronous applications. -* [Cucumber](https://github.com/cucumber/cucumber-jvm) - BDD testing framework. +* [Cucumber](https://github.com/cucumber/cucumber-jvm) - Behavioural Driven Development (BDD) testing framework. * [Cukes-REST](https://github.com/ctco/cukes-rest) - A collection of Gherkin steps for REST-service testing using Cucumber. +* [Fixture Factory](https://github.com/six2six/fixture-factory) - Generates fake objects from a template. * [Gatling](http://gatling.io/) - Load testing tool designed for ease of use, maintainability and high performance. * [GreenMail](http://www.icegreen.com/greenmail/) - In-memory email server for integration testing. Supports SMTP, POP3 and IMAP including SSL. -* [J8Spec](https://github.com/j8spec/j8spec/) - J8Spec is a library that allows tests written in Java to follow the BDD style introduced by RSpec and Jasmine. -* [JBehave](http://jbehave.org/) - Framework for Behavioural Driven Development. +* [J8Spec](https://github.com/j8spec/j8spec/) - Library that allows tests written in Java to follow the BDD style introduced by RSpec and Jasmine. +* [JBehave](http://jbehave.org/) - Framework for BDD. * [JFairy](https://github.com/Codearte/jfairy) - Fake data generator. -* [Fixture Factory](https://github.com/six2six/fixture-factory) - Generates fake objects from a template. * [JGiven](http://jgiven.org) - Developer-friendly BDD testing framework compatible with JUnit and TestNG. -* [JMockit](http://jmockit.org/) - Mocks static, final methods and more. -* [JSONAssert](http://jsonassert.skyscreamer.org/) - Simplifies testing of JSON strings. -* [junit-dataprovider](https://github.com/TNG/junit-dataprovider) - A TestNG like dataprovider runner for JUnit. -* [JUnitParams](https://pragmatists.github.io/JUnitParams/) - Creation of readable and maintainable parametrised tests. +* [JMockit](http://jmockit.org/) - Integration testing, API mocking and faking, and code coverage. +* [JSONAssert](http://jsonassert.skyscreamer.org/) - Simplifies testing JSON strings. +* [junit-dataprovider](https://github.com/TNG/junit-dataprovider) - A TestNG-like data provider/runner for JUnit. +* [JUnitParams](https://pragmatists.github.io/JUnitParams/) - Creates readable and maintainable parametrised tests. * [Lamdba Behave](https://github.com/RichardWarburton/lambda-behave) - Descriptive behavioural specification framework. -* [Mockito](https://github.com/mockito/mockito) - Creation of test double objects in automated unit tests for the purpose of TDD or BDD. -* [MockServer](http://www.mock-server.com/) - Allows mocking of systems that are integrated with HTTP/S. -* [Moco](https://github.com/dreamhead/moco) - Concise web services for stubs and mocks, Duke's Choice Award 2013. -* [Mutability Detector](https://github.com/MutabilityDetector/MutabilityDetector) - Reports on whether instances of a given class are immutable. -* [PIT](http://pitest.org) - Fast mutation-testing framework for evaluating fault-detection abilities of existing JUnit or TestNG test-suites. -* [pojo-tester](http://www.pojo.pl/) - Automatically performs tests on basic POJO-methods. -* [PowerMock](https://github.com/jayway/powermock) - Enables mocking of static methods, constructors, final classes and methods, private methods and removal of static initializers. +* [Mockito](https://github.com/mockito/mockito) - Mocking framework that lets you write tests with a clean and simple API. +* [MockServer](http://www.mock-server.com/) - Allows mocking of systems integrated with HTTPS. +* [Moco](https://github.com/dreamhead/moco) - Concise web services for stubs and mocks; Duke's Choice Award winner (2013). +* [Mutability Detector](https://github.com/MutabilityDetector/MutabilityDetector) - Reports whether instances of a given class are immutable. +* [PIT](http://pitest.org) - Fast mutation-testing framework for evaluating fault-detection abilities of existing JUnit or TestNG test suites. +* [pojo-tester](http://www.pojo.pl/) - Automatically performs tests on basic POJO methods. +* [PowerMock](https://github.com/jayway/powermock) - Mocks static methods, constructors, final classes and methods, private methods, and removal of static initializers. * [raml-tester](https://github.com/nidi3/raml-tester) - Tests if a request/response matches a given RAML definition. -* [REST Assured](https://github.com/jayway/rest-assured) - Java DSL for easy testing for REST/HTTP services. -* [Selenide](http://selenide.org/) - Concise API around Selenium to write stable and readable UI tests. -* [Selenium](http://docs.seleniumhq.org/) - Portable software testing framework for web applications. +* [Randomized Testing](https://github.com/randomizedtesting/randomizedtesting) - JUnit test runner and plugins for running JUnit tests with pseudo-randomness. +* [REST Assured](https://github.com/jayway/rest-assured) - Java DSL for easy testing of REST/HTTP services. * [TestContainers](https://github.com/testcontainers/testcontainers-java) - Provides throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container. * [Truth](https://github.com/google/truth) - Google's assertion and proposition framework. * [WireMock](http://wiremock.org/) - Stubs and mocks web services. @@ -808,24 +824,25 @@ A curated list of awesome Java frameworks, libraries and software. *Libraries which provide general utility functions.* -* [Apache Commons](http://commons.apache.org/) - Provides different general purpose functions like configuration, validation, collections, file upload or XML processing. +* [Apache Commons](http://commons.apache.org/) - Provides configuration, validation, collections, file uploading, XML processing and other general-purpose functions. +* [cactoos](http://www.cactoos.org) - Collection of object-oriented primitives. * [CRaSH](http://www.crashub.org) - Provides a shell into a JVM that's running CRaSH. Used by Spring Boot and others. * [Dex](https://github.com/PatMartin/Dex) - Java/JavaFX tool capable of powerful ETL and data visualization. * [Embulk](http://www.embulk.org/) - Bulk data loader that helps data transfer between various databases, storages, file formats, and cloud services. * [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 so forth. -* [JADE](http://jade.tilab.com/) - Framework and environment for building and to debugging multi-agent systems. -* [JavaVerbalExpressions](https://github.com/VerbalExpressions/JavaVerbalExpressions) - A library that helps to construct 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. +* [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](http://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 setup the development shell environment and switch between different Java versions.* +*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, 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. @@ -833,38 +850,51 @@ A curated list of awesome Java frameworks, libraries and software. *Libraries that analyze the content of websites.* -* [Apache Nutch](http://nutch.apache.org/) - Highly extensible, highly scalable web crawler for production environment. +* [Apache Nutch](http://nutch.apache.org/) - Highly extensible, highly scalable web crawler for production environments. * [Crawler4j](https://github.com/yasserg/crawler4j) - Simple and lightweight web crawler. * [JSoup](http://jsoup.org/) - Scrapes, parses, manipulates and cleans HTML. +* [StormCrawler](http://stormcrawler.net/) - SDK for building low-latency and scalable web crawlers. ## Web Frameworks -*Frameworks that handle the communication between the layers of an web application.* +*Frameworks that handle the communication between the layers of a web application.* * [Apache Tapestry](http://tapestry.apache.org/) - Component-oriented framework for creating dynamic, robust, highly scalable web applications. -* [Apache Wicket](http://wicket.apache.org/) - Component-based web application framework similar to Tapestry with a stateful GUI. -* [Baratine](http://baratine.io) - Toolkit for building distributed and reactive applications for multiple environments, either standalone or embedded. -* [Blade](https://github.com/biezhi/blade) - Lightweight, modular framework which aims to be elegant and simple. +* [Apache Wicket](http://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. -* [Grails](https://grails.org/) - Groovy framework with the aim to provide a highly productive environment by favoring convention over configuration, no XML and support for mixins. -* [Jooby](http://jooby.org) - Scalable, fast and modular micro framework which 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/) - Uses convention over configuration, hot code reloading and display of errors in the browser. -* [PrimeFaces](http://primefaces.org/) - JSF framework which has a free and a commercial version with support. Provides several frontend components. -* [Ratpack](https://ratpack.io/) - Set of libraries that facilitate fast, efficient, evolvable and well tested HTTP applications. -* [Spring Boot](http://projects.spring.io/spring-boot/) - Microframework which simplifies the development of new Spring applications. -* [Vaadin](https://vaadin.com/home) - Event-driven framework build on top of GWT. Uses server-side architecture with Ajax on the client-side. +* [Firefly](http://www.fireflysource.com/) - Asynchronous framework for rapid development of high-performance web application. +* [Grails](https://grails.org/) - Groovy framework that provides a highly productive environment by favoring convention over configuration, no XML and support for mixins. +* [Jooby](http://jooby.org) - Scalable, fast and modular micro-framework that offers multiple programming models. +* [Ninja](http://www.ninjaframework.org/) - Full-stack web framework. +* [Pippo](http://www.pippo.ro/) - Small, highly modularized, Sinatra-like framework. +* [Play](https://www.playframework.com/) - Built on Akka, it provides predictable and minimal resource consumption (CPU, memory, threads) for highly-scalable applications in Java and Scala. +* [PrimeFaces](http://primefaces.org/) - JSF framework with both free and commercial/support versions and frontend components. +* [Ratpack](https://ratpack.io/) - Set of libraries that facilitate fast, efficient, evolvable and well-tested HTTP applications. +* [Spring Boot](http://projects.spring.io/spring-boot/) - Microframework that simplifies the development of new Spring applications. +* [Vaadin](https://vaadin.com/home) - Event-driven framework build on top of GWT. Uses server-side architecture with Ajax on the client side. # Resources +## Awesome Lists + +*Awesome lists related to the Java/JVM ecosystem* + +- [Awesome Gradle Plugins](https://github.com/ksoichiro/awesome-gradle) +- [Awesome JVM](https://github.com/deephacks/awesome-jvm) +- [Awesome Microservices](https://github.com/mfornos/awesome-microservices) +- [Awesome REST](https://github.com/marmelab/awesome-rest) +- [Awesome Selenium](https://github.com/christian-bromann/awesome-selenium) +- [ciandcd](https://github.com/ciandcd/awesome-ciandcd) +- [Useful Java Links](https://github.com/Vedenin/useful-java-links) + ## Communities *Active discussions.* * [r/java](https://www.reddit.com/r/java) - Subreddit for the Java community. * [stackoverflow](http://stackoverflow.com/questions/tagged/java) - Question/answer platform. -* [vJUG](http://virtualjug.com/) - Virtual Java User Group. +* [VirtualJUG](http://virtualjug.com/) - Virtual Java User Group. ## Frontends @@ -874,7 +904,7 @@ A curated list of awesome Java frameworks, libraries and software. ## Influential Books -*Books that had a high impact and are still worth reading.* +*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) @@ -882,11 +912,12 @@ A curated list of awesome Java frameworks, libraries and software. * [Java Concurrency in Practice](http://www.amazon.com/Java-Concurrency-Practice-Brian-Goetz/dp/0321349601) * [Thinking in Java](http://www.amazon.com/Thinking-Java-Edition-Bruce-Eckel/dp/0131872486) -## Podcasts +## Podcasts and Screencasts -*Something to listen to while programming.* +*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](http://virtualjug.com/podcast/) * [The Java Posse](http://www.javaposse.com/) - Discontinued as of 02/2015. @@ -894,31 +925,39 @@ A curated list of awesome Java frameworks, libraries and software. *Active accounts to follow. Descriptions from Twitter.* -* [Adam Bien](https://twitter.com/AdamBien/) - Freelancer: Author, JavaONE Rockstar Speaker, Consultant, Java Champion. -* [Aleksey Shipilëv](https://twitter.com/shipilev) - Performance Geek, Benchmarking Tzar, Concurrency Bug Hunter. +* [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. +* [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 @@ -942,6 +981,6 @@ A curated list of awesome Java frameworks, libraries and software. Contributions are very welcome! -Please have a look at [CONTRIBUTING](https://github.com/akullpp/awesome-java/blob/master/CONTRIBUTING.md) for guidelines. +Please have a look at the [CONTRIBUTING](https://github.com/akullpp/awesome-java/blob/master/CONTRIBUTING.md) guidelines. [c]: https://cdn.rawgit.com/akullpp/23246ca832bda82bb505230bf3538e2a/raw/d9bcdb769bf025292f9c6bc1290f01f1fcd1f864/commercial.svg