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A curated list of awesome frameworks, libraries and software for the Java programming language.
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2014-07-11 23:46:05 +02:00
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Awesome Java

A curated list of awesome Java frameworks, libraries and software. Inspired by awesome-python.

Build Tool

Tools which handle the buildcycle of an application

  • Apache Ant - Procedural build configurations via XML files.
  • Apache Maven - Declarative lifecycle and dependency managment which favors conventions.
  • Gradle - Incremental builds which are programmed via Groovy.

Code Analysis

Tools that provide metrics and quality measurements of static code

Compiler-compiler

Tools that create parsers, interpreters or compilers

Continuous Integration

Tools which support continuously building, testing and releasing applications

  • Hudson
  • Jenkins - Provides server-based CI services, often seen as the successor to Hudson.

Database Access

Everything which simplifies the access to the database

  • DBeaver - Graphical database manager.
  • JDBI - Simplification of JDBC.
  • jOOQ - Generates typesafe code based on SQL schema.
  • Liquibase - Source control for your database.
  • Spring JDBCTemplate - Simplification of JDBC.
  • MapDB - Database engine with optimized datastructures.

Date and Time

Libraries related to date and time.

Dependency Injection

Libraries that help to realize the Inversion Of Control paradigm

  • Dagger - Compile-time injection framework without reflection, mainly for Android.
  • Google Guice
  • Spring - The Spring Context module provides DI.
  • Weld - CDI reference implementation.

Development Tools

  • DCEVM - Modification of the JVM that allows unlimited redefinition of loaded classes at runtime.
  • JRebel - Instantly reloads code and configuration changes without redeploys.

Distributed Applications

Libraries and frameworks used to ease writing distributed and fault-tolerant applications

  • Akka - Toolkit and runtime for building highly concurrent, distributed, and fault tolerant event-driven applications on the JVM.
  • JGroups - Toolkit for reliable messaging and creating clusters whose nodes can send messages to each other.
  • Apache ZooKeeper - Coordination service.

GUI

Libraries to create modern graphical user interfaces

Game Development

Frameworks that support the development of games

  • LWJGL - Robust framework that abstracts libraries like OpenGL/CL/AL.
  • libGDX - Allround cross-plattform, high-level framework.

High Performance

Everything about high performance computation, from collections to specific libraries

  • Trove - Primitive collections.
  • HPPC - Primitive collections.
  • Disruptor - Inter-thread messaging library.
  • Javalution - Library for real-time and embedded systems.

IDE

Integrated development environments that try to simplify several aspects of development

JVM And JDK

Various implementations of the JVM/JDK

  • HotSpot - Official JVM.
  • IBM J9
  • JDK 9 - Early access releases of JDK 9.
  • JRockit - Originally developed by BEA, has a different kind of GC and is often used with WebLogic.
  • OpenJDK - Open source implementation.

JSON

Libraries that simplify JSON processing

Logging

Libraries that log the behavior of an application

Machine Learning

Tools that allow to learn from data via a set of specific algorithms

  • Apache Mahout - Scalable algorithms focused on collaborative filtering, clustering and classification.
  • Apache Spark - Open-source data analytics cluster computing framework.
  • Weka - Collection of algorithms for data mining tasks ranging from pre-processing to visualization.

MapReduce

Libraries that provide access to the MapReduce model

  • Apache Crunch - Framework for simple MapReduce pipelines.
  • Apache Hadoop - Open-source software framework for storage and large-scale processing of data-sets on clusters of commodity hardware.

Messaging

Tools that help sending messages between clients to ensure protocol independency

Miscellaneous

Everything else

  • Jimfs - In-memory file system.
  • Lombok - Code-generator which aims to reduce the verbosity of Java.

Natural Language Processing

Libraries that are specialized on processing text

  • Apache OpenNLP Toolkit for common tasks like tokenization.
  • LingPipe - Toolkit for a variety of tasks ranging from POS tagging to sentiment analysis.
  • Mallet - Statistical natural language processing, document classification, clustering, topic modeling, etc.

ORM

APIs which handle the persistence of objects

PDF

Everything that helps with the creation of PDF files

Permissions

Libraries that handle role/rights with associated permissions

  • Apache Shiro
  • Keycloak - Integrated SSO and IDM for browser apps and RESTful web services.
  • PicketLink - PicketLink is an umbrella project for security and identity management for Java Applications.

Science and Data Analysis

Libraries for scientific computing and analysis

  • Colt - High performance scientific and technical computing.
  • JTransforms - Multithread FFT library.
  • Mines JTK - Tools for digital signal processing, linear algebra, inversion, 2-D and 3-D graphics, and more.
  • Parallel Colt - Multithread high performance scientific and technical computing.

Server

Servers which are specifically used to deploy applications

  • GlassFish - Open source reference implementation for Java EE sponsored by Oracle.
  • WildFly - Formerly known as JBoss and developed by Red Hat with extensive Java EE support.
  • Jetty - Lightweight, small server often embedded in projects. Part of the Eclipse Foundation.
  • Apache Tomcat - Robust allround server for Servlet and JSP.
  • Apache TomEE - Tomcat plus Java EE.

Template Engine

Tools which substitute expressions in a template

Testing

Tools that test from object to interface level including performance and other benchmarks

Utility

Libraries which provide unspecific functionality, e.g. optimized datastructures

Web Crawling

Libraries that analyze the content of websites

Web Frameworks

Frameworks that handle the communication between the layers of an web application

REST Frameworks

Frameworks specifically for creating RESTful services

  • Dropwizard - Opinionated framework for setting up modern web applications, includes Jetty, Jackson, Jersey and Metrics.
  • Jersey - JAX-RS reference implementation.
  • RESTEasy - Fully certified and portable implementation of the JAX-RS specification.

Resources

Twitter

People to follow

Websites

Important websites

Communities

  • r/java - Subreddit for the Java community.

Influental Books

Books about Java that had a high impact and are still worth reading

Contributing

Contributions are very welcome!

Please have a look at CONTRIBUTING for guidelines.

Topics which have no libraries as of yet are located in TOPICS.