{"id":88190,"url":"https://github.com/correia-jpv/fucking-awesome-java","name":"fucking-awesome-java","description":"A curated list of awesome frameworks, libraries and software for the Java programming language. With repository stars⭐ and forks🍴","projects_count":774,"last_synced_at":"2026-07-28T17:00:24.765Z","repository":{"id":37630705,"uuid":"454364081","full_name":"Correia-jpv/fucking-awesome-java","owner":"Correia-jpv","description":"A curated list of awesome frameworks, libraries and software for the Java programming language. 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Do not edit README.md directly. --\u003e\n\n# Awesome Java [![Awesome](https://awesome.re/badge.svg)](https://awesome.re)\n\nA curated list of noteworthy Java frameworks, libraries, tools and resources.\n\n\u003csub\u003e812 projects · 75 categories · 80 resources\u003c/sub\u003e\n\n\u003csub\u003eActivity: 🟢 pushed within 3 months · 🟠 pushed 3–12 months ago · 🔴 no push for over 12 months\u003c/sub\u003e\n\n\u003csub\u003eLicense chips use GitHub SPDX metadata when available.\u003c/sub\u003e\n\n\u003csub\u003eEntries spanning several repositories combine their stars, use the most recent push for activity and show a license only when all repositories agree.\u003c/sub\u003e\n\n## Projects\n\n\u003cdetails id=\"architecture\"\u003e\n\u003csummary\u003e\u003cstrong\u003eArchitecture\u003c/strong\u003e \u003ckbd\u003e2 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks and libraries that help implementing and verifying design and architecture concepts._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3786⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;342🍴\u003c/code\u003e\u003c/b\u003e [ArchUnit](https://github.com/TNG/ArchUnit))** \u003ckbd\u003e★ 3.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eTest library for specifying and asserting architecture rules.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1548⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;117🍴\u003c/code\u003e\u003c/b\u003e [jMolecules](https://github.com/xmolecules/jmolecules))** \u003ckbd\u003e★ 1.5k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eAnnotations and interfaces to express design and architecture concepts in code.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"artificial-intelligence\"\u003e\n\u003csummary\u003e\u003cstrong\u003eArtificial Intelligence\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks that help you to leverage LLMs and AI._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;22⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;6🍴\u003c/code\u003e\u003c/b\u003e [Anahata ASI](https://github.com/anahata-os/anahata-asi))** \u003ckbd\u003e★ 21\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eJava agent container with local LLM adapters, stateful tool execution, context management and IDE integration.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;47⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;4🍴\u003c/code\u003e\u003c/b\u003e [Dokimos](https://github.com/dokimos-dev/dokimos))** \u003ckbd\u003e★ 47\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eEvaluation framework for LLM and AI-agent applications that scores responses, validates tool calls and execution traces, and catches quality regressions in CI.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;20⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;5🍴\u003c/code\u003e\u003c/b\u003e [JamJet](https://github.com/jamjet-labs/jamjet))** \u003ckbd\u003e★ 20\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAgent runtime with a Java SDK for building AI agents, supporting graph-based workflow orchestration, multi-agent coordination, and MCP/A2A protocols.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;12707⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2400🍴\u003c/code\u003e\u003c/b\u003e [LangChain4j](https://github.com/langchain4j/langchain4j))** \u003ckbd\u003e★ 12.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eSimplifies integration of LLMs with unified APIs and a comprehensive toolbox.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;239⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;17🍴\u003c/code\u003e\u003c/b\u003e [liter-llm](https://github.com/xberg-io/liter-llm))** \u003ckbd\u003e★ 238\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eProvides a Java binding for a unified LLM API client across multiple providers.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3601⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1016🍴\u003c/code\u003e\u003c/b\u003e [MCP Java SDK](https://github.com/modelcontextprotocol/java-sdk))** \u003ckbd\u003e★ 3.6k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eEnables applications to interact with AI models and tools through a standardized interface (i.e. Model Context Protocol), supporting both synchronous and asynchronous communication patterns.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;7⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [Regulus](https://github.com/neul-labs/regulus))** \u003ckbd\u003e★ 7\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eGoogle ADK plugin suite that adds runtime compliance profiles, audit envelopes and GRC adapters for regulated Java AI agents.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;380⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;56🍴\u003c/code\u003e\u003c/b\u003e [simple-openai](https://github.com/sashirestela/simple-openai))** \u003ckbd\u003e★ 380\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟠\u003cbr\u003eLibrary to use the OpenAI API (and compatible ones) in the simplest possible way.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;9208⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2760🍴\u003c/code\u003e\u003c/b\u003e [Spring AI](https://github.com/spring-projects/spring-ai))** \u003ckbd\u003e★ 9.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eApplication framework for AI engineering for Spring.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"bean-mapping\"\u003e\n\u003csummary\u003e\u003cstrong\u003eBean Mapping\u003c/strong\u003e \u003ckbd\u003e8 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks that ease bean mapping._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;103⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;17🍴\u003c/code\u003e\u003c/b\u003e [dOOv](https://github.com/doov-io/doov))** \u003ckbd\u003e★ 103\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eProvides fluent API for typesafe domain model validation and mapping. It uses annotations, code generation and a type safe DSL to make bean validation and mapping fast and easy.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;6⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [Immuto](https://github.com/karunarathnad/immuto))** \u003ckbd\u003e★ 6\u003c/kbd\u003e 🟢\u003cbr\u003eAnnotation processor that generates type-safe mapper implementations for Java Records using canonical constructors, with zero runtime reflection.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;245⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;41🍴\u003c/code\u003e\u003c/b\u003e [JMapper](https://github.com/jmapper-framework/jmapper-core))** \u003ckbd\u003e★ 245\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eUses byte code manipulation for lightning-fast mapping. Supports annotations and API or XML configuration.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;7671⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1043🍴\u003c/code\u003e\u003c/b\u003e [MapStruct](https://github.com/mapstruct/mapstruct))** \u003ckbd\u003e★ 7.7k\u003c/kbd\u003e 🟢\u003cbr\u003eCode generator that simplifies mappings between different bean types, based on a convention-over-configuration approach.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2351⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;345🍴\u003c/code\u003e\u003c/b\u003e [ModelMapper](https://github.com/modelmapper/modelmapper))** \u003ckbd\u003e★ 2.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eIntelligent object mapping library that automatically maps objects to each other.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1314⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;272🍴\u003c/code\u003e\u003c/b\u003e [Orika](https://github.com/orika-mapper/orika))** \u003ckbd\u003e★ 1.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eJavaBean-mapping framework that recursively copies (among other capabilities) data from one object to another.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;128⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;24🍴\u003c/code\u003e\u003c/b\u003e [reMap](https://github.com/remondis-it/remap))** \u003ckbd\u003e★ 128\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLambda and method handle-based mapping which requires code and not annotations if objects have different names.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;213⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;38🍴\u003c/code\u003e\u003c/b\u003e [Selma](https://github.com/xebia-france/selma))** \u003ckbd\u003e★ 213\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eAnnotation processor-based bean mapper.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"build\"\u003e\n\u003csummary\u003e\u003cstrong\u003eBuild\u003c/strong\u003e \u003ckbd\u003e6 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Tools that handle the build cycle and dependencies of an application._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5277⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2996🍴\u003c/code\u003e\u003c/b\u003e [Apache Maven](https://github.com/apache/maven))** \u003ckbd\u003e★ 5.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDeclarative 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.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;25658⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4542🍴\u003c/code\u003e\u003c/b\u003e [Bazel](https://github.com/bazelbuild/bazel))** \u003ckbd\u003e★ 25.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eTool from Google that builds code quickly and reliably.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4375⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;376🍴\u003c/code\u003e\u003c/b\u003e [Buck2](https://github.com/facebook/buck2))** \u003ckbd\u003e★ 4.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eEncourages the creation of small, reusable modules consisting of code and resources.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;18735⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5266🍴\u003c/code\u003e\u003c/b\u003e [Gradle](https://github.com/gradle/gradle))** \u003ckbd\u003e★ 18.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eIncremental builds programmed via Groovy instead of declaring XML. Works well with Maven's dependency management.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;4⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [jar-cart](https://github.com/Sudhanshu-Ambastha/jar-cart))** \u003ckbd\u003e★ 4\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eA modern, zero-configuration package manager and runner for the Java ecosystem written in Go, focusing on developer productivity and build speed.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;1⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [ReleaseRun](https://github.com/Releaserun/releaserun-cli))** \u003ckbd\u003e★ 1\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟠\u003cbr\u003eDependency health checker for pom.xml and Gradle projects that scans for CVEs and outdated packages.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"bytecode-manipulation\"\u003e\n\u003csummary\u003e\u003cstrong\u003eBytecode Manipulation\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries to manipulate bytecode programmatically._\n\n\u003e * 🌎 [ASM](asm.ow2.io)**\u003cbr\u003eAll-purpose, low-level bytecode manipulation and analysis.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6873⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;852🍴\u003c/code\u003e\u003c/b\u003e [Byte Buddy](https://github.com/raphw/byte-buddy))** \u003ckbd\u003e★ 6.9k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFurther simplifies bytecode generation with a fluent API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;15576⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1268🍴\u003c/code\u003e\u003c/b\u003e [bytecode-viewer](https://github.com/Konloch/bytecode-viewer))** \u003ckbd\u003e★ 15.6k\u003c/kbd\u003e \u003ckbd\u003eGPL-3.0\u003c/kbd\u003e 🟢\u003cbr\u003eJava 8 Jar \u0026 Android APK reverse engineering suite.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;513⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;151🍴\u003c/code\u003e\u003c/b\u003e [Byteman](https://github.com/bytemanproject/byteman))** \u003ckbd\u003e★ 513\u003c/kbd\u003e 🟢\u003cbr\u003eManipulate bytecode at runtime via DSL (rules); mainly for testing/troubleshooting. (LGPL-2.1-or-later)\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4893⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;875🍴\u003c/code\u003e\u003c/b\u003e [cglib](https://github.com/cglib/cglib))** \u003ckbd\u003e★ 4.9k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eBytecode generation library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4233⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;718🍴\u003c/code\u003e\u003c/b\u003e [Javassist](https://github.com/jboss-javassist/javassist))** \u003ckbd\u003e★ 4.2k\u003c/kbd\u003e 🟢\u003cbr\u003eTries to simplify bytecode editing.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;70⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;4🍴\u003c/code\u003e\u003c/b\u003e [Maker](https://github.com/cojen/maker))** \u003ckbd\u003e★ 70\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eProvides low level bytecode generation.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1706⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;224🍴\u003c/code\u003e\u003c/b\u003e [Mixin](https://github.com/SpongePowered/Mixin))** \u003ckbd\u003e★ 1.7k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🔴\u003cbr\u003eManipulate bytecode at runtime using real Java code.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;7300⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;533🍴\u003c/code\u003e\u003c/b\u003e [Recaf](https://github.com/Col-E/Recaf))** \u003ckbd\u003e★ 7.3k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eJVM reverse engineering toolkit, essentially an IDE for Java bytecode.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"caching\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCaching\u003c/strong\u003e \u003ckbd\u003e4 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that provide caching facilities._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;743⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;77🍴\u003c/code\u003e\u003c/b\u003e [cache2k](https://github.com/cache2k/cache2k))** \u003ckbd\u003e★ 743\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eIn-memory high performance caching library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;17775⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1702🍴\u003c/code\u003e\u003c/b\u003e [Caffeine](https://github.com/ben-manes/caffeine))** \u003ckbd\u003e★ 17.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-performance, near-optimal caching library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2087⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;585🍴\u003c/code\u003e\u003c/b\u003e [Ehcache](https://github.com/ehcache/ehcache3))** \u003ckbd\u003e★ 2.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDistributed general-purpose cache.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1340⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;652🍴\u003c/code\u003e\u003c/b\u003e [Infinispan](https://github.com/infinispan/infinispan))** \u003ckbd\u003e★ 1.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHighly concurrent key/value datastore used for caching.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"cli\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCLI\u003c/strong\u003e \u003ckbd\u003e10 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries for everything related to the CLI._\n\n#### Argument Parsing \u003ckbd\u003e5 projects\u003c/kbd\u003e\n\n_Libraries to assist with parsing command line arguments._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;145⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;22🍴\u003c/code\u003e\u003c/b\u003e [Airline](https://github.com/rvesse/airline))** \u003ckbd\u003e★ 145\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAnnotation-based framework for parsing Git-like command-line arguments.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;92⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;9🍴\u003c/code\u003e\u003c/b\u003e [jbock](https://github.com/jbock-java/jbock))** \u003ckbd\u003e★ 92\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟠\u003cbr\u003eReflectionless command line parser.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2023⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;340🍴\u003c/code\u003e\u003c/b\u003e [JCommander](https://github.com/cbeust/jcommander))** \u003ckbd\u003e★ 2.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eCommand-line argument-parsing framework with custom types and validation via implementing interfaces.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1794⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;251🍴\u003c/code\u003e\u003c/b\u003e [JLine](https://github.com/jline/jline3))** \u003ckbd\u003e★ 1.8k\u003c/kbd\u003e 🟢\u003cbr\u003eIncludes features from modern shells like completion or history.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5404⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;476🍴\u003c/code\u003e\u003c/b\u003e [picocli](https://github.com/remkop/picocli))** \u003ckbd\u003e★ 5.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eANSI colors and styles in usage help with annotation-based POSIX/GNU/any syntax, subcommands, strong typing for both options and positional args.\n\n#### Text-Based User Interfaces \u003ckbd\u003e5 projects\u003c/kbd\u003e\n\n_Libraries that provide TUI frameworks, or building blocks related functions._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;9⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [AliveJTUI](https://github.com/yehorsyrin/alivejTUI))** \u003ckbd\u003e★ 9\u003c/kbd\u003e 🟠\u003cbr\u003eDeclarative, React-style TUI library for building terminal UIs as component trees with diff-based rendering, focus management, and themes.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1200⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;152🍴\u003c/code\u003e\u003c/b\u003e [Jansi](https://github.com/fusesource/jansi))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eANSI escape codes to format console output.\n\n\u003e * 🌎 [Jexer](gitlab.com/AutumnMeowMeow/jexer)**\u003cbr\u003eAdvanced console (and Swing) text user interface (TUI) library, with mouse-draggable windows, built-in terminal window manager, and sixel image support. Looks like 🌎 [Turbo Vision](en.wikipedia.org/wiki/Turbo_Vision).\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2603⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;275🍴\u003c/code\u003e\u003c/b\u003e [Lanterna](https://github.com/mabe02/lanterna))** \u003ckbd\u003e★ 2.6k\u003c/kbd\u003e \u003ckbd\u003eLGPL-3.0\u003c/kbd\u003e 🟢\u003cbr\u003eEasy console text-GUI library, similar to curses.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;353⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;46🍴\u003c/code\u003e\u003c/b\u003e [Text-IO](https://github.com/beryx/text-io))** \u003ckbd\u003e★ 353\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eAids the creation of full console-based applications.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"cloud\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCloud\u003c/strong\u003e \u003ckbd\u003e2 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries to integrate or use cloud-specific features._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4202⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2791🍴\u003c/code\u003e\u003c/b\u003e [AWS SDK for Java](https://github.com/aws/aws-sdk-java))** \u003ckbd\u003e★ 4.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eProvides Java APIs for interacting with Amazon Web Services.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2076⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1156🍴\u003c/code\u003e\u003c/b\u003e [Google Cloud Client Libraries](https://github.com/googleapis/google-cloud-java))** \u003ckbd\u003e★ 2.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eClient libraries for accessing Google Cloud services from Java applications.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"code-analysis\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCode Analysis\u003c/strong\u003e \u003ckbd\u003e14 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Tools that provide metrics and quality measurements._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;8981⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4143🍴\u003c/code\u003e\u003c/b\u003e [Checkstyle](https://github.com/checkstyle/checkstyle))** \u003ckbd\u003e★ 9.0k\u003c/kbd\u003e \u003ckbd\u003eLGPL-2.1\u003c/kbd\u003e 🟢\u003cbr\u003eStatic analysis of coding conventions and standards.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;7213⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;807🍴\u003c/code\u003e\u003c/b\u003e [Error Prone](https://github.com/google/error-prone))** \u003ckbd\u003e★ 7.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eCatches common programming mistakes as compile-time errors.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;37⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;2🍴\u003c/code\u003e\u003c/b\u003e [Error Prone Support](https://github.com/PicnicSupermarket/error-prone-support))** \u003ckbd\u003e★ 37\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eError Prone extensions: extra bug checkers and a large battery of Refaster templates.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;15666⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2097🍴\u003c/code\u003e\u003c/b\u003e [Infer](https://github.com/facebook/infer))** \u003ckbd\u003e★ 15.7k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eModern static analysis tool for verifying the correctness of code.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;284⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;45🍴\u003c/code\u003e\u003c/b\u003e [jQAssistant](https://github.com/jQAssistant/jqassistant))** \u003ckbd\u003e★ 284\u003c/kbd\u003e \u003ckbd\u003eGPL-3.0\u003c/kbd\u003e 🟢\u003cbr\u003eStatic code analysis with Neo4J-based query language.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1117⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;44🍴\u003c/code\u003e\u003c/b\u003e [JSpecify](https://github.com/jspecify/jspecify))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eStandardized nullness annotations designed to work uniformly across various Java IDEs, compilers, and static analysis tools.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4083⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;351🍴\u003c/code\u003e\u003c/b\u003e [NullAway](https://github.com/uber/NullAway))** \u003ckbd\u003e★ 4.1k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eEliminates NullPointerExceptions with low build-time overhead.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;30829⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;7976🍴\u003c/code\u003e\u003c/b\u003e [p3c](https://github.com/alibaba/p3c))** \u003ckbd\u003e★ 30.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eProvides Alibaba's coding guidelines for PMD, IDEA and Eclipse.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5462⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1580🍴\u003c/code\u003e\u003c/b\u003e [PMD](https://github.com/pmd/pmd))** \u003ckbd\u003e★ 5.5k\u003c/kbd\u003e 🟢\u003cbr\u003eSource code analysis for finding bad coding practices.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;538⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;46🍴\u003c/code\u003e\u003c/b\u003e [RefactorFirst](https://github.com/jimbethancourt/RefactorFirst))** \u003ckbd\u003e★ 538\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eIdentifies and prioritizes God Classes and Highly Coupled classes.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1211⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;725🍴\u003c/code\u003e\u003c/b\u003e [SonarJava](https://github.com/SonarSource/sonar-java))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e 🟢\u003cbr\u003eStatic analyzer for SonarQube \u0026 SonarLint. (LGPL-3.0-only)\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1949⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;386🍴\u003c/code\u003e\u003c/b\u003e [Spoon](https://github.com/INRIA/spoon))** \u003ckbd\u003e★ 1.9k\u003c/kbd\u003e 🟢\u003cbr\u003eLibrary for analyzing and transforming Java source code.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3911⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;668🍴\u003c/code\u003e\u003c/b\u003e [Spotbugs](https://github.com/spotbugs/spotbugs))** \u003ckbd\u003e★ 3.9k\u003c/kbd\u003e \u003ckbd\u003eLGPL-2.1\u003c/kbd\u003e 🟢\u003cbr\u003eStatic analysis of bytecode to find potential bugs.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [ToolsHref](https://github.com/toolshref-tools/toolshref-tools))** \u003ckbd\u003e★ 0\u003c/kbd\u003e 🟠\u003cbr\u003eOnline Java code analyzer and JSON-to-Mermaid visualization tool.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"code-coverage\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCode Coverage\u003c/strong\u003e \u003ckbd\u003e4 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks and tools that enable code coverage metrics collection for test suites._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1051⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;276🍴\u003c/code\u003e\u003c/b\u003e [Cobertura](https://github.com/cobertura/cobertura))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e \u003ckbd\u003eGPL-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eRelies on offline (or static) bytecode instrumentation and class loading to collect code coverage metrics.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;40⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;7🍴\u003c/code\u003e\u003c/b\u003e [Delta Coverage](https://github.com/gw-kit/delta-coverage-plugin))** \u003ckbd\u003e★ 40\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eComputes code coverage of new and modified code based on a provided diff, supporting JaCoCo and IntelliJ coverage engines.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4594⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1195🍴\u003c/code\u003e\u003c/b\u003e [JaCoCo](https://github.com/jacoco/jacoco))** \u003ckbd\u003e★ 4.6k\u003c/kbd\u003e 🟢\u003cbr\u003eFramework that enables collection of code coverage metrics, using both offline and runtime bytecode instrumentation.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;70⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;19🍴\u003c/code\u003e\u003c/b\u003e [OpenClover](https://github.com/openclover/clover))** \u003ckbd\u003e★ 70\u003c/kbd\u003e 🟢\u003cbr\u003eMeasures Java code coverage through source-code instrumentation, with build-tool and IDE integrations.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"code-formatting\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCode Formatting\u003c/strong\u003e \u003ckbd\u003e4 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Tools that format or restructure Java source code._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6165⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;929🍴\u003c/code\u003e\u003c/b\u003e [google-java-format](https://github.com/google/google-java-format))** \u003ckbd\u003e★ 6.2k\u003c/kbd\u003e 🟢\u003cbr\u003eReformats Java source code to follow Google Java Style.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;26⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [JHarmonizer](https://github.com/lemon-ant/JHarmonizer))** \u003ckbd\u003e★ 26\u003c/kbd\u003e 🟢\u003cbr\u003eSafely reorders Java source code with configurable rules and Palantir Java Format.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;848⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;93🍴\u003c/code\u003e\u003c/b\u003e [Palantir Java Format](https://github.com/palantir/palantir-java-format))** \u003ckbd\u003e★ 847\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFormatter based on google-java-format with wider lines and lambda-friendly output.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5571⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;542🍴\u003c/code\u003e\u003c/b\u003e [Spotless](https://github.com/diffplug/spotless))** \u003ckbd\u003e★ 5.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eA versatile code formatter for Gradle and Maven that enforces multiple styles (including Google and Palantir) across Java and other languages.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"code-generators\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCode Generators\u003c/strong\u003e \u003ckbd\u003e16 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Tools that generate patterns for repetitive code in order to reduce verbosity and error-proneness._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;150⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;9🍴\u003c/code\u003e\u003c/b\u003e [ADT4J](https://github.com/sviperll/adt4j))** \u003ckbd\u003e★ 150\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🔴\u003cbr\u003eJSR-269 code generator for algebraic data types.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;10562⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1220🍴\u003c/code\u003e\u003c/b\u003e [Auto](https://github.com/google/auto))** \u003ckbd\u003e★ 10.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGenerates factory, service, and value classes.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;96⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;19🍴\u003c/code\u003e\u003c/b\u003e [Avaje Http Server](https://github.com/avaje/avaje-http))** \u003ckbd\u003e★ 96\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGenerates Lightweight JAX-RS style http servers using Javalin or Helidon (Nima) SE.\n\n\u003e * 🌎 [Bootify](bootify.io)**\u003cbr\u003eBrowser-based Spring Boot app generation with JPA model and REST API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;10⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [CRUDGen](https://github.com/bariskokulu/CRUDGen))** \u003ckbd\u003e★ 10\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eCompile-time annotation processor generating CRUD layers, DTOs, JSON Patch, and custom HTTP endpoints for Spring Boot.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;10⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;1🍴\u003c/code\u003e\u003c/b\u003e [EasyEntityToDTO](https://github.com/Marcel091004/EasyEntityToDTO))** \u003ckbd\u003e★ 10\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟠\u003cbr\u003eAnnotation processor for automatic DTO and Mapper generation with zero boilerplate.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;138⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;17🍴\u003c/code\u003e\u003c/b\u003e [Geci](https://github.com/verhas/javageci))** \u003ckbd\u003e★ 138\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eDiscovers files that need generated code, updates automatically and writes to the source with a convenient API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3567⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;296🍴\u003c/code\u003e\u003c/b\u003e [Immutables](https://github.com/immutables/immutables))** \u003ckbd\u003e★ 3.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAnnotation processors to generate simple, safe and consistent value objects.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;22433⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4192🍴\u003c/code\u003e\u003c/b\u003e [JHipster](https://github.com/jhipster/generator-jhipster))** \u003ckbd\u003e★ 22.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eYeoman source code generator for Spring Boot and AngularJS.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;150⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;40🍴\u003c/code\u003e\u003c/b\u003e [Joda-Beans](https://github.com/JodaOrg/joda-beans))** \u003ckbd\u003e★ 150\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eSmall framework that adds queryable properties to Java, enhancing JavaBeans.\n\n\u003e * 🌎 [JPA Buddy](www.jpa-buddy.com)**\u003cbr\u003ePlugin for IntelliJ IDEA. Provides visual tools for generating JPA entities, Spring Data JPA repositories, Liquibase changelogs and SQL scripts. Offers automatic Liquibase/Flyway script generation by comparing model to DB, and reverse engineering JPA entities from DB tables.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;4⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;1🍴\u003c/code\u003e\u003c/b\u003e [JSpecify Package-Info Generator](https://github.com/bcaillard/jspecify-packageinfo-generator))** \u003ckbd\u003e★ 4\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eMaven plugin that automatically generates package-info.java files with JSpecify annotations (@NullMarked and @NullUnmarked), helping you manage nullness boundaries in your Java projects without manual boilerplate.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;13467⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2476🍴\u003c/code\u003e\u003c/b\u003e [Lombok](https://github.com/projectlombok/lombok))** \u003ckbd\u003e★ 13.5k\u003c/kbd\u003e 🟢\u003cbr\u003eCode generator that aims to reduce verbosity.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;924⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;70🍴\u003c/code\u003e\u003c/b\u003e [Record-Builder](https://github.com/Randgalt/record-builder))** \u003ckbd\u003e★ 924\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eCompanion builder class, withers and templates for Java records.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;37⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;2🍴\u003c/code\u003e\u003c/b\u003e [Spring CRUD Generator](https://github.com/mzivkovicdev/spring-crud-generator))** \u003ckbd\u003e★ 37\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eMaven plugin for generating Spring Boot CRUD applications from YAML/JSON specifications.\n\n\u003e * 🌎 [Telosys](www.telosys.org/)** \u003ckbd\u003e★ 212\u003c/kbd\u003e \u003ckbd\u003eLGPL-3.0\u003c/kbd\u003e 🟠\u003cbr\u003eJava code-generation toolkit with a CLI and model-driven template engine.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"compiler-compiler\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCompiler-compiler\u003c/strong\u003e \u003ckbd\u003e3 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks that help to create parsers, interpreters or compilers._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;18961⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3461🍴\u003c/code\u003e\u003c/b\u003e [ANTLR](https://github.com/antlr/antlr4))** \u003ckbd\u003e★ 19.0k\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟠\u003cbr\u003eComplex full-featured framework for top-down parsing.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1278⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;253🍴\u003c/code\u003e\u003c/b\u003e [JavaCC](https://github.com/javacc/javacc))** \u003ckbd\u003e★ 1.3k\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🔴\u003cbr\u003eParser generator that generates top-down parsers. Allows lexical state switching and permits extended BNF specifications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;630⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;120🍴\u003c/code\u003e\u003c/b\u003e [JFlex](https://github.com/jflex-de/jflex))** \u003ckbd\u003e★ 630\u003c/kbd\u003e 🔴\u003cbr\u003eLexical analyzer generator.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"computer-vision\"\u003e\n\u003csummary\u003e\u003cstrong\u003eComputer Vision\u003c/strong\u003e \u003ckbd\u003e3 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries which seek to gain high level information from images and videos._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1187⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;270🍴\u003c/code\u003e\u003c/b\u003e [BoofCV](https://github.com/lessthanoptimal/BoofCV))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e 🟢\u003cbr\u003eLibrary for image processing, camera calibration, tracking, SFM, MVS, 3D vision, QR Code and much more.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;775⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;261🍴\u003c/code\u003e\u003c/b\u003e [ImageJ](https://github.com/imagej/ImageJ))** \u003ckbd\u003e★ 775\u003c/kbd\u003e 🟢\u003cbr\u003eMedical image processing application with an API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;8327⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1620🍴\u003c/code\u003e\u003c/b\u003e [JavaCV](https://github.com/bytedeco/javacv))** \u003ckbd\u003e★ 8.3k\u003c/kbd\u003e 🟢\u003cbr\u003eJava interface to OpenCV, FFmpeg, and much more.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"configuration\"\u003e\n\u003csummary\u003e\u003cstrong\u003eConfiguration\u003c/strong\u003e \u003ckbd\u003e14 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that provide external configuration._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;107⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;11🍴\u003c/code\u003e\u003c/b\u003e [avaje config](https://github.com/avaje/avaje-config))** \u003ckbd\u003e★ 107\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLoads yaml and properties files, supports dynamic configuration, plugins, file-watching and config event listeners.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;664⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;135🍴\u003c/code\u003e\u003c/b\u003e [centraldogma](https://github.com/line/centraldogma))** \u003ckbd\u003e★ 663\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHighly-available version-controlled service configuration repository based on Git, ZooKeeper and HTTP/2.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;9⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [ClearConfig](https://github.com/japgolly/clear-config-java))** \u003ckbd\u003e★ 9\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eType-safe, composable configuration library with a focus on runtime clarity.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6309⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;981🍴\u003c/code\u003e\u003c/b\u003e [config](https://github.com/lightbend/config))** \u003ckbd\u003e★ 6.3k\u003c/kbd\u003e 🟢\u003cbr\u003eConfiguration library supporting Java properties, JSON or its human optimized superset HOCON.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;466⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;84🍴\u003c/code\u003e\u003c/b\u003e [Configurate](https://github.com/SpongePowered/Configurate))** \u003ckbd\u003e★ 466\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eConfiguration library with support for various configuration formats and transformations.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3172⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1244🍴\u003c/code\u003e\u003c/b\u003e [Curator Framework](https://github.com/apache/curator))** \u003ckbd\u003e★ 3.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-level API for Apache ZooKeeper.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;51⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;3🍴\u003c/code\u003e\u003c/b\u003e [dotenv](https://github.com/shyiko/dotenv))** \u003ckbd\u003e★ 51\u003c/kbd\u003e 🔴\u003cbr\u003eTwelve-factor configuration library which uses environment-specific files.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;47⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;4🍴\u003c/code\u003e\u003c/b\u003e [Externalized Properties](https://github.com/joel-jeremy/externalized-properties))** \u003ckbd\u003e★ 47\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eSimple, lightweight, yet powerful configuration library which supports resolution of properties from external sources such as files, databases, git repositories, and any custom sources, plus an extensible post-processing/conversion mechanism.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;102⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;7🍴\u003c/code\u003e\u003c/b\u003e [Gestalt](https://github.com/gestalt-config/gestalt))** \u003ckbd\u003e★ 102\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGestalt offers a comprehensive solution to the challenges of configuration management. It allows you to source configuration data from multiple inputs, merge them intelligently, and present them in a structured, type-safe manner.\n\n\u003e * 🌎 [ini4j](ini4j.sourceforge.net)**\u003cbr\u003eProvides an API for handling Windows' INI files.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;63⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;5🍴\u003c/code\u003e\u003c/b\u003e [KAConf](https://github.com/mariomac/kaconf))** \u003ckbd\u003e★ 63\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eAnnotation-based configuration system for Java and Kotlin.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;320⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;18🍴\u003c/code\u003e\u003c/b\u003e [microconfig](https://github.com/microconfig/microconfig))** \u003ckbd\u003e★ 320\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eConfiguration system designed for microservices which helps to separate configuration from code. The configuration for different services can have common and specific parts and can be dynamically distributed.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;939⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;213🍴\u003c/code\u003e\u003c/b\u003e [owner](https://github.com/lviggiano/owner))** \u003ckbd\u003e★ 939\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟢\u003cbr\u003eReduces boilerplate of properties.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;9⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [sealed-env](https://github.com/davidalmeidac/sealed-env))** \u003ckbd\u003e★ 9\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eEncrypts environment files with a shared Node.js and Java/Spring Boot format plus optional TOTP unsealing.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"constraint-satisfaction-problem-solver\"\u003e\n\u003csummary\u003e\u003cstrong\u003eConstraint Satisfaction Problem Solver\u003c/strong\u003e \u003ckbd\u003e3 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that help with implementing optimization and satisfiability problems._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;771⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;158🍴\u003c/code\u003e\u003c/b\u003e [Choco](https://github.com/chocoteam/choco-solver))** \u003ckbd\u003e★ 771\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟢\u003cbr\u003eOff-the-shelf constraint satisfaction problem solver that uses constraint programming techniques.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;235⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;59🍴\u003c/code\u003e\u003c/b\u003e [JaCoP](https://github.com/radsz/jacop))** \u003ckbd\u003e★ 235\u003c/kbd\u003e 🟠\u003cbr\u003eIncludes an interface for the FlatZinc language, enabling it to execute MiniZinc models. (AGPL-3.0)\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1727⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;217🍴\u003c/code\u003e\u003c/b\u003e [Timefold](https://github.com/TimefoldAI/timefold-solver))** \u003ckbd\u003e★ 1.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFlexible solver with Spring/Quarkus support and quickstarts for the Vehicle Routing Problem, Maintenance Scheduling, Employee Shift Scheduling and much more.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"csv\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCSV\u003c/strong\u003e \u003ckbd\u003e5 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks and libraries that simplify reading/writing CSV data._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;689⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;105🍴\u003c/code\u003e\u003c/b\u003e [FastCSV](https://github.com/osiegmar/FastCSV))** \u003ckbd\u003e★ 689\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003ePerformance-optimized, dependency-free and RFC 4180 compliant.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;453⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;160🍴\u003c/code\u003e\u003c/b\u003e [jackson-dataformat-csv](https://github.com/FasterXML/jackson-dataformats-text))** \u003ckbd\u003e★ 453\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eJackson extension for reading and writing CSV.\n\n\u003e * 🌎 [opencsv](opencsv.sourceforge.net)**\u003cbr\u003eSimple CSV parser.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;528⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;140🍴\u003c/code\u003e\u003c/b\u003e [Super CSV](https://github.com/super-csv/super-csv))** \u003ckbd\u003e★ 528\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003ePowerful CSV parser with support for Dozer, Joda-Time and Java 8.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;935⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;250🍴\u003c/code\u003e\u003c/b\u003e [uniVocity-parsers](https://github.com/uniVocity/univocity-parsers))** \u003ckbd\u003e★ 935\u003c/kbd\u003e 🔴\u003cbr\u003eOne of the fastest and most feature-complete parsers. Also comes with parsers for TSV and fixed-width records.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"data-structures\"\u003e\n\u003csummary\u003e\u003cstrong\u003eData Structures\u003c/strong\u003e \u003ckbd\u003e12 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Efficient and specific data structures._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3289⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1768🍴\u003c/code\u003e\u003c/b\u003e [Apache Avro](https://github.com/apache/avro))** \u003ckbd\u003e★ 3.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eData interchange format with dynamic typing, untagged data, and absence of manually assigned IDs.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;769⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;516🍴\u003c/code\u003e\u003c/b\u003e [Apache Orc](https://github.com/apache/orc))** \u003ckbd\u003e★ 769\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFast and efficient columnar storage format for Hadoop-based workloads.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3070⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1553🍴\u003c/code\u003e\u003c/b\u003e [Apache Parquet](https://github.com/apache/parquet-java))** \u003ckbd\u003e★ 3.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eColumnar storage format based on assembly algorithms from Google's paper on Dremel.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;10942⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4113🍴\u003c/code\u003e\u003c/b\u003e [Apache Thrift](https://github.com/apache/thrift))** \u003ckbd\u003e★ 10.9k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eData interchange format that originated at Facebook.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;567⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;217🍴\u003c/code\u003e\u003c/b\u003e [Big Queue](https://github.com/bulldog2011/bigqueue))** \u003ckbd\u003e★ 567\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eFast and persistent queue based on memory-mapped files.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;106⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;9🍴\u003c/code\u003e\u003c/b\u003e [HashSmith](https://github.com/bluuewhale/hash-smith))** \u003ckbd\u003e★ 106\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟠\u003cbr\u003eHash map and set implementations using SwissTable-style SWAR/SIMD control-byte probing, optimized for memory efficiency.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;786⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;83🍴\u003c/code\u003e\u003c/b\u003e [Persistent Collection](https://github.com/hrldcpr/pcollections))** \u003ckbd\u003e★ 785\u003c/kbd\u003e 🔴\u003cbr\u003ePersistent and immutable analogue of the Java Collections Framework.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;71650⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;16204🍴\u003c/code\u003e\u003c/b\u003e [Protobuf](https://github.com/protocolbuffers/protobuf))** \u003ckbd\u003e★ 71.6k\u003c/kbd\u003e 🟢\u003cbr\u003eGoogle's data interchange format.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3899⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;594🍴\u003c/code\u003e\u003c/b\u003e [RoaringBitmap](https://github.com/RoaringBitmap/RoaringBitmap))** \u003ckbd\u003e★ 3.9k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFast and efficient compressed bitmap.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3477⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;587🍴\u003c/code\u003e\u003c/b\u003e [SBE](https://github.com/real-logic/simple-binary-encoding))** \u003ckbd\u003e★ 3.5k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eSimple Binary Encoding, one of the fastest message formats around.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4424⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;624🍴\u003c/code\u003e\u003c/b\u003e [Wire](https://github.com/square/wire))** \u003ckbd\u003e★ 4.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eClean, lightweight protocol buffers.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;8⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [Wormhole4j](https://github.com/komamitsu/wormhole4j))** \u003ckbd\u003e★ 8\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-performance sorted map with fast range scans and thread-safe concurrent access, based on the Wormhole index structure.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"database\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDatabase\u003c/strong\u003e \u003ckbd\u003e43 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Everything that simplifies interactions with the database._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;18⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;0🍴\u003c/code\u003e\u003c/b\u003e [Actual Schema Gradle Plugin](https://github.com/YRashid/actual-schema-gradle-plugin))** \u003ckbd\u003e★ 18\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGenerates PostgreSQL schema DDL from Liquibase migrations using Testcontainers.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5159⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2507🍴\u003c/code\u003e\u003c/b\u003e [Apache Calcite](https://github.com/apache/calcite))** \u003ckbd\u003e★ 5.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDynamic data management framework. It contains many of the pieces that comprise a typical database management system.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2022⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;990🍴\u003c/code\u003e\u003c/b\u003e [Apache Drill](https://github.com/apache/drill))** \u003ckbd\u003e★ 2.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDistributed, schema on-the-fly, ANSI SQL query engine for Big Data exploration.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1059⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1012🍴\u003c/code\u003e\u003c/b\u003e [Apache Phoenix](https://github.com/apache/phoenix))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-performance relational database layer over HBase for low-latency applications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;20767⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6899🍴\u003c/code\u003e\u003c/b\u003e [Apache ShardingSphere](https://github.com/apache/shardingsphere))** \u003ckbd\u003e★ 20.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDistributed SQL transaction \u0026 query engine that allows for data sharding, scaling, encryption, and more on any database.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;209⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;96🍴\u003c/code\u003e\u003c/b\u003e [ArangoDB](https://github.com/arangodb/arangodb-java-driver))** \u003ckbd\u003e★ 209\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eArangoDB Java driver.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1045⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;124🍴\u003c/code\u003e\u003c/b\u003e [ArcadeDB](https://github.com/ArcadeData/arcadedb))** \u003ckbd\u003e★ 1.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eMulti-model database supporting graphs, documents, key-value, time series, and vector embeddings with SQL, Cypher, Gremlin, MongoDB, and Redis API compatibility.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2980⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;478🍴\u003c/code\u003e\u003c/b\u003e [Chronicle Map](https://github.com/OpenHFT/Chronicle-Map))** \u003ckbd\u003e★ 3.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eEfficient, in-memory (opt. persisted to disk), off-heap key-value store.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;640⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;87🍴\u003c/code\u003e\u003c/b\u003e [CosId](https://github.com/Ahoo-Wang/CosId))** \u003ckbd\u003e★ 640\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eUniversal, flexible, high-performance distributed ID generator.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;12953⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2985🍴\u003c/code\u003e\u003c/b\u003e [Debezium](https://github.com/debezium/debezium))** \u003ckbd\u003e★ 13.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLow latency data streaming platform for change data capture.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;14034⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3791🍴\u003c/code\u003e\u003c/b\u003e [druid](https://github.com/apache/druid))** \u003ckbd\u003e★ 14.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-performance, column-oriented, distributed data store.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;466⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;191🍴\u003c/code\u003e\u003c/b\u003e [eXist](https://github.com/eXist-db/exist))** \u003ckbd\u003e★ 466\u003c/kbd\u003e \u003ckbd\u003eLGPL-2.1\u003c/kbd\u003e 🟢\u003cbr\u003eNoSQL document database and application platform.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1176⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;126🍴\u003c/code\u003e\u003c/b\u003e [FlexyPool](https://github.com/vladmihalcea/flexy-pool))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eBrings metrics and failover strategies to the most common connection pooling solutions.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;9953⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1628🍴\u003c/code\u003e\u003c/b\u003e [Flyway](https://github.com/flyway/flyway))** \u003ckbd\u003e★ 10.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eSimple database migration tool.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4612⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1302🍴\u003c/code\u003e\u003c/b\u003e [H2](https://github.com/h2database/h2database))** \u003ckbd\u003e★ 4.6k\u003c/kbd\u003e 🟢\u003cbr\u003eSmall SQL database notable for its in-memory functionality.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;21163⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3004🍴\u003c/code\u003e\u003c/b\u003e [HikariCP](https://github.com/brettwooldridge/HikariCP))** \u003ckbd\u003e★ 21.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-performance JDBC connection pool.\n\n\u003e * 🌎 [HSQLDB](hsqldb.org/)**\u003cbr\u003eHyperSQL 100% Java database.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2132⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;364🍴\u003c/code\u003e\u003c/b\u003e [JDBI](https://github.com/jdbi/jdbi))** \u003ckbd\u003e★ 2.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eConvenient abstraction of JDBC.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;12345⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3913🍴\u003c/code\u003e\u003c/b\u003e [Jedis](https://github.com/xetorthio/jedis))** \u003ckbd\u003e★ 12.3k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eSmall client for interaction with Redis, with methods for commands.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;143⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;55🍴\u003c/code\u003e\u003c/b\u003e [jetcd](https://github.com/justinsb/jetcd))** \u003ckbd\u003e★ 143\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eClient library for etcd.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;662⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;73🍴\u003c/code\u003e\u003c/b\u003e [Jinq](https://github.com/my2iu/Jinq))** \u003ckbd\u003e★ 662\u003c/kbd\u003e 🔴\u003cbr\u003eTypesafe database queries via symbolic execution of Java 8 Lambdas (on top of JPA or jOOQ).\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6760⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1218🍴\u003c/code\u003e\u003c/b\u003e [jOOQ](https://github.com/jOOQ/jOOQ))** \u003ckbd\u003e★ 6.8k\u003c/kbd\u003e 🟢\u003cbr\u003eGenerates typesafe code based on SQL schema.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6756⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1868🍴\u003c/code\u003e\u003c/b\u003e [Leaf](https://github.com/Meituan-Dianping/Leaf))** \u003ckbd\u003e★ 6.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eDistributed ID generate service.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5771⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1096🍴\u003c/code\u003e\u003c/b\u003e [Lettuce](https://github.com/redis/lettuce))** \u003ckbd\u003e★ 5.8k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eLettuce is a scalable Redis client for building non-blocking Reactive applications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5568⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1959🍴\u003c/code\u003e\u003c/b\u003e [Liquibase](https://github.com/liquibase/liquibase))** \u003ckbd\u003e★ 5.6k\u003c/kbd\u003e 🟢\u003cbr\u003eDatabase-independent library for tracking, managing and applying database schema changes.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5050⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;879🍴\u003c/code\u003e\u003c/b\u003e [MapDB](https://github.com/jankotek/mapdb))** \u003ckbd\u003e★ 5.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eEmbedded database engine that provides concurrent collections backed on disk or in off-heap memory.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;16⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;2🍴\u003c/code\u003e\u003c/b\u003e [MariaDB4j](https://github.com/vorburger/MariaDB4j))** \u003ckbd\u003e★ 16\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eLauncher for MariaDB that requires no installation or external dependencies.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;16⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;5🍴\u003c/code\u003e\u003c/b\u003e [Modality](https://github.com/arkanovicz/modality))** \u003ckbd\u003e★ 16\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLightweight ORM with database reverse engineering features.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;218⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;44🍴\u003c/code\u003e\u003c/b\u003e [Open J Proxy](https://github.com/Open-J-Proxy/ojp))** \u003ckbd\u003e★ 218\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eType 3 JDBC driver and Layer 7 proxy server for decoupling applications from relational database connection management.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;435⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;110🍴\u003c/code\u003e\u003c/b\u003e [OpenDJ](https://github.com/OpenIdentityPlatform/OpenDJ))** \u003ckbd\u003e★ 435\u003c/kbd\u003e 🟢\u003cbr\u003eLDAPv3 compliant directory service, developed for the Java platform, providing a high performance, highly available, and secure store for the identities.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4970⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;881🍴\u003c/code\u003e\u003c/b\u003e [Querydsl](https://github.com/querydsl/querydsl))** \u003ckbd\u003e★ 5.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eTypesafe unified queries.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;21⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;5🍴\u003c/code\u003e\u003c/b\u003e [QueryStream](https://github.com/querystream/querystream))** \u003ckbd\u003e★ 21\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eBuild JPA Criteria queries using a Stream-like API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;17211⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1634🍴\u003c/code\u003e\u003c/b\u003e [QuestDB](https://github.com/questdb/questdb))** \u003ckbd\u003e★ 17.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-performance SQL database for time series. Supports InfluxDB line protocol, PostgreSQL wire protocol, and REST.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;11466⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1748🍴\u003c/code\u003e\u003c/b\u003e [Realm](https://github.com/realm/realm-java))** \u003ckbd\u003e★ 11.5k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eMobile database to run directly inside phones, tablets or wearables.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;24378⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5492🍴\u003c/code\u003e\u003c/b\u003e [Redisson](https://github.com/redisson/redisson))** \u003ckbd\u003e★ 24.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAllows for distributed and scalable data structures on top of a Redis server.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3126⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;240🍴\u003c/code\u003e\u003c/b\u003e [requery](https://github.com/requery/requery))** \u003ckbd\u003e★ 3.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eModern, lightweight but powerful object mapping and SQL generator. Easily map to or create databases, or perform queries and updates from any Java-using platform.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1819⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;209🍴\u003c/code\u003e\u003c/b\u003e [SchemaCrawler](https://github.com/schemacrawler/SchemaCrawler))** \u003ckbd\u003e★ 1.8k\u003c/kbd\u003e 🟢\u003cbr\u003eDiscovers, documents and diagrams relational database schemas from Java, build tools and the command line.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2092⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;231🍴\u003c/code\u003e\u003c/b\u003e [Speedment](https://github.com/speedment/speedment))** \u003ckbd\u003e★ 2.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eDatabase access library that utilizes Java 8's Stream API for querying.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;40⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;3🍴\u003c/code\u003e\u003c/b\u003e [Spring Data Dynamic Query](https://github.com/tdilber/spring-data-dynamic-query))** \u003ckbd\u003e★ 40\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eUnified dynamic query interface for Spring Data JPA, MongoDB, and Elasticsearch, enabling advanced JOIN(s), OR logic, scoped conditions, powerful projections and advanced features with zero boilerplate.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;104⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;20🍴\u003c/code\u003e\u003c/b\u003e [Spring Data JPA MongoDB Expressions](https://github.com/mhewedy/spring-data-jpa-mongodb-expressions))** \u003ckbd\u003e★ 104\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eAllows you to use MongoDB query language to query your relational database.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;13077⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3709🍴\u003c/code\u003e\u003c/b\u003e [Trino](https://github.com/trinodb/trino))** \u003ckbd\u003e★ 13.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDistributed SQL query engine for big data.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;124⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;12🍴\u003c/code\u003e\u003c/b\u003e [Vibur DBCP](https://github.com/vibur/vibur-dbcp))** \u003ckbd\u003e★ 124\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eJDBC connection pool library with advanced performance monitoring capabilities.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1260⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;114🍴\u003c/code\u003e\u003c/b\u003e [Xodus](https://github.com/JetBrains/xodus))** \u003ckbd\u003e★ 1.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHighly concurrent transactional schema-less and ACID-compliant embedded database.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"date-and-time\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDate and Time\u003c/strong\u003e \u003ckbd\u003e4 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries related to handling date and time._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;836⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;216🍴\u003c/code\u003e\u003c/b\u003e [iCal4j](https://github.com/ical4j/ical4j))** \u003ckbd\u003e★ 836\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟢\u003cbr\u003eParse and build iCalendar 🌎 [RFC 5545](tools.ietf.org/html/rfc5545) data models.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;134⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;35🍴\u003c/code\u003e\u003c/b\u003e [Jollyday](https://github.com/focus-shift/jollyday))** \u003ckbd\u003e★ 134\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDetermines the holidays for a given year, country/name and eventually state/region.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;423⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;81🍴\u003c/code\u003e\u003c/b\u003e [ThreeTen-Extra](https://github.com/ThreeTen/threeten-extra))** \u003ckbd\u003e★ 423\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟢\u003cbr\u003eAdditional date-time classes that complement those in JDK 8.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;471⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;67🍴\u003c/code\u003e\u003c/b\u003e [Time4J](https://github.com/MenoData/Time4J))** \u003ckbd\u003e★ 470\u003c/kbd\u003e \u003ckbd\u003eLGPL-2.1\u003c/kbd\u003e 🔴\u003cbr\u003eAdvanced date and time library.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"decentralization\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDecentralization\u003c/strong\u003e \u003ckbd\u003e1 project\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that handle decentralization tasks._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4131⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1708🍴\u003c/code\u003e\u003c/b\u003e [java-tron](https://github.com/tronprotocol/java-tron))** \u003ckbd\u003e★ 4.1k\u003c/kbd\u003e \u003ckbd\u003eLGPL-3.0\u003c/kbd\u003e 🟢\u003cbr\u003eImplementation of the Tron Protocol, whic utilizes blockchains to develop decentralized applications.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"decompilation\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDecompilation\u003c/strong\u003e \u003ckbd\u003e6 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries for decompiling JVM bytecode._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2639⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;324🍴\u003c/code\u003e\u003c/b\u003e [CFR](https://github.com/leibnitz27/cfr))** \u003ckbd\u003e★ 2.6k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eJava decompiler focused on modern language features.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4341⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;725🍴\u003c/code\u003e\u003c/b\u003e [Fernflower](https://github.com/JetBrains/fernflower))** \u003ckbd\u003e★ 4.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eJava decompiler with broad JVM bytecode support.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;587⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;154🍴\u003c/code\u003e\u003c/b\u003e [JD-Core](https://github.com/java-decompiler/jd-core))** \u003ckbd\u003e★ 587\u003c/kbd\u003e \u003ckbd\u003eGPL-3.0\u003c/kbd\u003e 🔴\u003cbr\u003eCore Java decompiler library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1207⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;136🍴\u003c/code\u003e\u003c/b\u003e [Procyon](https://github.com/mstrobel/procyon))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e 🔴\u003cbr\u003eJava decompiler and metadata toolkit.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;3⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;2🍴\u003c/code\u003e\u003c/b\u003e [transformer-api](https://github.com/nbauma109/transformer-api))** \u003ckbd\u003e★ 3\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eUnified API that exposes multiple decompilers through one in-memory transformation interface.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2270⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;143🍴\u003c/code\u003e\u003c/b\u003e [Vineflower](https://github.com/Vineflower/vineflower))** \u003ckbd\u003e★ 2.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eModern maintained fork of Fernflower.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"dependency-injection\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDependency Injection\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that help to realize the 🌎 [Inversion of Control](en.wikipedia.org/wiki/Inversion_of_control) paradigm._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;154⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;131🍴\u003c/code\u003e\u003c/b\u003e [Apache DeltaSpike](https://github.com/apache/deltaspike))** \u003ckbd\u003e★ 154\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eCDI extension framework.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;314⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;28🍴\u003c/code\u003e\u003c/b\u003e [Avaje Inject](https://github.com/avaje/avaje-inject))** \u003ckbd\u003e★ 314\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eMicroservice-focused compile-time injection framework without reflection.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;17709⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2041🍴\u003c/code\u003e\u003c/b\u003e [Dagger](https://github.com/google/dagger))** \u003ckbd\u003e★ 17.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eCompile-time injection framework without reflection.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;19⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;2🍴\u003c/code\u003e\u003c/b\u003e [Dimension-DI](https://github.com/akardapolov/dimension-di))** \u003ckbd\u003e★ 19\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eJSR-330 runtime dependency injection using the JDK Class-File API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;365⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;59🍴\u003c/code\u003e\u003c/b\u003e [Feather](https://github.com/zsoltherpai/feather))** \u003ckbd\u003e★ 365\u003c/kbd\u003e 🔴\u003cbr\u003eUltra-lightweight, JSR-330-compliant dependency injection library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;829⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;172🍴\u003c/code\u003e\u003c/b\u003e [Governator](https://github.com/Netflix/governator))** \u003ckbd\u003e★ 829\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eExtensions and utilities that enhance Google Guice.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;12733⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1683🍴\u003c/code\u003e\u003c/b\u003e [Guice](https://github.com/google/guice))** \u003ckbd\u003e★ 12.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLightweight and opinionated framework that completes Dagger.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;95⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;57🍴\u003c/code\u003e\u003c/b\u003e [HK2](https://github.com/eclipse-ee4j/glassfish-hk2))** \u003ckbd\u003e★ 95\u003c/kbd\u003e 🟢\u003cbr\u003eLightweight and dynamic dependency injection framework.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;64⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;5🍴\u003c/code\u003e\u003c/b\u003e [JayWire](https://github.com/vanillasource/jaywire))** \u003ckbd\u003e★ 64\u003c/kbd\u003e 🔴\u003cbr\u003eLightweight dependency injection framework. (LGPL-3.0-only)\n\n\u003c/details\u003e\n\n\u003cdetails id=\"development\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDevelopment\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Augmentation of the development process at a fundamental level._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;392⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;102🍴\u003c/code\u003e\u003c/b\u003e [AspectJ](https://github.com/eclipse-aspectj/aspectj))** \u003ckbd\u003e★ 392\u003c/kbd\u003e 🟠\u003cbr\u003eSeamless aspect-oriented programming extension.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1857⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;176🍴\u003c/code\u003e\u003c/b\u003e [DCEVM](https://github.com/dcevm/dcevm))** \u003ckbd\u003e★ 1.9k\u003c/kbd\u003e 🔴\u003cbr\u003eJVM modification that allows unlimited redefinition of loaded classes at runtime. (GPL-2.0-only)\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;143⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;16🍴\u003c/code\u003e\u003c/b\u003e [Faux Pas](https://github.com/zalando/faux-pas))** \u003ckbd\u003e★ 143\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🔴\u003cbr\u003eLibrary 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.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2602⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;521🍴\u003c/code\u003e\u003c/b\u003e [HotswapAgent](https://github.com/HotswapProjects/HotswapAgent))** \u003ckbd\u003e★ 2.6k\u003c/kbd\u003e \u003ckbd\u003eGPL-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eUnlimited runtime class and resource redefinition.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6130⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1248🍴\u003c/code\u003e\u003c/b\u003e [JavaParser](https://github.com/javaparser/javaparser))** \u003ckbd\u003e★ 6.1k\u003c/kbd\u003e 🟢\u003cbr\u003eParse, modify and generate Java code.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2755⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;134🍴\u003c/code\u003e\u003c/b\u003e [Manifold](https://github.com/manifold-systems/manifold))** \u003ckbd\u003e★ 2.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eRe-energizes Java with powerful features like type-safe metaprogramming, structural typing and extension methods.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;130⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;13🍴\u003c/code\u003e\u003c/b\u003e [NoException](https://github.com/robertvazan/noexception))** \u003ckbd\u003e★ 130\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eAllows checked exceptions in functional interfaces and converts exceptions to Optional return.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;81⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;3🍴\u003c/code\u003e\u003c/b\u003e [SneakyThrow](https://github.com/rainerhahnekamp/sneakythrow))** \u003ckbd\u003e★ 81\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🔴\u003cbr\u003eIgnores checked exceptions without bytecode manipulation. Can also be used inside Java 8 stream operations.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;30⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;3🍴\u003c/code\u003e\u003c/b\u003e [Tail](https://github.com/nrktkt/tail))** \u003ckbd\u003e★ 30\u003c/kbd\u003e \u003ckbd\u003eUnlicense\u003c/kbd\u003e 🔴\u003cbr\u003eEnable infinite recursion using tail call optimization.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"distributed-applications\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDistributed Applications\u003c/strong\u003e \u003ckbd\u003e14 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries and frameworks for writing distributed and fault-tolerant applications._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2375⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;695🍴\u003c/code\u003e\u003c/b\u003e [Apache Geode](https://github.com/apache/geode))** \u003ckbd\u003e★ 2.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eIn-memory data management system that provides reliable asynchronous event notifications and guaranteed message delivery.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6696⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4038🍴\u003c/code\u003e\u003c/b\u003e [Apache Storm](https://github.com/apache/storm))** \u003ckbd\u003e★ 6.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eRealtime computation system.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;12783⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;7329🍴\u003c/code\u003e\u003c/b\u003e [Apache ZooKeeper](https://github.com/apache/zookeeper))** \u003ckbd\u003e★ 12.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eCoordination service with distributed configuration, synchronization, and naming registry for large distributed systems.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2363⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;386🍴\u003c/code\u003e\u003c/b\u003e [Atomix](https://github.com/atomix/atomix))** \u003ckbd\u003e★ 2.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eFault-tolerant distributed coordination framework.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3597⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;852🍴\u003c/code\u003e\u003c/b\u003e [Axon](https://github.com/AxonIQ/AxonFramework))** \u003ckbd\u003e★ 3.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFramework for creating CQRS applications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;46⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;6🍴\u003c/code\u003e\u003c/b\u003e [Dropwizard Circuit Breaker](https://github.com/mtakaki/dropwizard-circuitbreaker))** \u003ckbd\u003e★ 46\u003c/kbd\u003e \u003ckbd\u003eGPL-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eCircuit breaker design pattern for Dropwizard.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4310⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;311🍴\u003c/code\u003e\u003c/b\u003e [Failsafe](https://github.com/jhalterman/failsafe))** \u003ckbd\u003e★ 4.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eSimple failure handling with retries and circuit breakers.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6596⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1888🍴\u003c/code\u003e\u003c/b\u003e [Hazelcast](https://github.com/hazelcast/hazelcast))** \u003ckbd\u003e★ 6.6k\u003c/kbd\u003e 🟢\u003cbr\u003eHighly scalable in-memory datagrid with a free open-source version.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1074⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;482🍴\u003c/code\u003e\u003c/b\u003e [JGroups](https://github.com/belaban/JGroups))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eToolkit for reliable messaging and cluster creation.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;90⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;15🍴\u003c/code\u003e\u003c/b\u003e [OpenIG](https://github.com/OpenIdentityPlatform/OpenIG))** \u003ckbd\u003e★ 90\u003c/kbd\u003e 🟢\u003cbr\u003eHigh-performance reverse proxy server with specialized session management and credential replay functionality.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4553⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;562🍴\u003c/code\u003e\u003c/b\u003e [Quasar](https://github.com/puniverse/quasar))** \u003ckbd\u003e★ 4.6k\u003c/kbd\u003e 🔴\u003cbr\u003eLightweight threads and actors for the JVM.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;10721⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1479🍴\u003c/code\u003e\u003c/b\u003e [resilience4j](https://github.com/resilience4j/resilience4j))** \u003ckbd\u003e★ 10.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFunctional fault tolerance library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;638⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;111🍴\u003c/code\u003e\u003c/b\u003e [ScaleCube Services](https://github.com/scalecube/scalecube-services))** \u003ckbd\u003e★ 638\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eEmbeddable Cluster-Membership library based on SWIM and gossip protocol.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;14051⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2441🍴\u003c/code\u003e\u003c/b\u003e [Zuul](https://github.com/Netflix/zuul))** \u003ckbd\u003e★ 14.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGateway service that provides dynamic routing, monitoring, resiliency, security, and more.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"distributed-transactions\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDistributed Transactions\u003c/strong\u003e \u003ckbd\u003e4 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Distributed transactions provide a mechanism for ensuring consistency of data updates in the presence of concurrent access and partial failures._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;484⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;151🍴\u003c/code\u003e\u003c/b\u003e [Atomikos](https://github.com/atomikos/transactions-essentials))** \u003ckbd\u003e★ 484\u003c/kbd\u003e 🟢\u003cbr\u003eProvides transactions for REST, SOA and microservices with support for JTA and XA.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;431⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;155🍴\u003c/code\u003e\u003c/b\u003e [Bitronix](https://github.com/bitronix/btm))** \u003ckbd\u003e★ 431\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eSimple but complete implementation of the JTA 1.1 API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;265⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;187🍴\u003c/code\u003e\u003c/b\u003e [Narayana](https://github.com/jbosstm/narayana))** \u003ckbd\u003e★ 265\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eProvides support for traditional ACID and compensation transactions, also complies with JTA, JTS and other standards.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;25977⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;8866🍴\u003c/code\u003e\u003c/b\u003e [Seata](https://github.com/seata/seata))** \u003ckbd\u003e★ 26.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDelivers high performance and easy to use distributed transaction services under a microservices architecture.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"distribution\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDistribution\u003c/strong\u003e \u003ckbd\u003e14 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Tools that handle the distribution of applications in native formats._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;689⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;74🍴\u003c/code\u003e\u003c/b\u003e [Artipie](https://github.com/artipie/artipie))** \u003ckbd\u003e★ 689\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eBinary artifact management toolkit which hosts them on the file system or S3.\n\n\u003e * 🌎 [Boxfuse](boxfuse.com)**\u003cbr\u003eDeployment of JVM applications to AWS using the principles of immutable infrastructure.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1144⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;97🍴\u003c/code\u003e\u003c/b\u003e [Capsule](https://github.com/puniverse/capsule))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e \u003ckbd\u003eEPL-1.0\u003c/kbd\u003e 🔴\u003cbr\u003eSimple and powerful packaging and deployment. A fat JAR on steroids, or a \"Docker for Java\" that supports JVM-optimized containers.\n\n\u003e * 🌎 [Central Repository](search.maven.org)**\u003cbr\u003eLargest 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.\n\n\u003e * 🌎 [Cloudsmith](cloudsmith.io)**\u003cbr\u003eFully managed package management SaaS with support for Maven/Gradle/SBT with a free tier.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;529⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;127🍴\u003c/code\u003e\u003c/b\u003e [Getdown](https://github.com/threerings/getdown))** \u003ckbd\u003e★ 530\u003c/kbd\u003e 🟢\u003cbr\u003eSystem for deploying Java applications to end-user computers and keeping them up to date. Developed as an alternative to Java Web Start.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;352⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;237🍴\u003c/code\u003e\u003c/b\u003e [IzPack](https://github.com/izpack/izpack))** \u003ckbd\u003e★ 352\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eSetup authoring tool for cross-platform deployments.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1199⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;147🍴\u003c/code\u003e\u003c/b\u003e [JavaPackager](https://github.com/fvarrui/JavaPackager))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e \u003ckbd\u003eGPL-3.0\u003c/kbd\u003e 🟠\u003cbr\u003eMaven and Gradle plugin which provides an easy way to package Java applications in native Windows, macOS or GNU/Linux executables, and generate installers for them.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;414⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;26🍴\u003c/code\u003e\u003c/b\u003e [jDeploy](https://github.com/shannah/jdeploy))** \u003ckbd\u003e★ 414\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eDeploy desktop apps as native Mac, Windows or Linux bundles.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;51⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;7🍴\u003c/code\u003e\u003c/b\u003e [jlink.online](https://github.com/AdoptOpenJDK/jlink.online))** \u003ckbd\u003e★ 51\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eBuilds optimized runtimes over HTTP.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2606⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;737🍴\u003c/code\u003e\u003c/b\u003e [Nexus](https://github.com/sonatype/nexus-public))** \u003ckbd\u003e★ 2.6k\u003c/kbd\u003e \u003ckbd\u003eEPL-1.0\u003c/kbd\u003e 🟢\u003cbr\u003eBinary management with proxy and caching capabilities.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;157⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;6🍴\u003c/code\u003e\u003c/b\u003e [Nuts](https://github.com/thevpc/nuts))** \u003ckbd\u003e★ 157\u003c/kbd\u003e 🟢\u003cbr\u003eInstalls and runs Java applications from Maven repositories, reusing descriptors and provisioning required JDKs.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2622⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;174🍴\u003c/code\u003e\u003c/b\u003e [packr](https://github.com/libgdx/packr))** \u003ckbd\u003e★ 2.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003ePacks JARs, assets and the JVM for native distribution on Windows, Linux and macOS.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;136⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;30🍴\u003c/code\u003e\u003c/b\u003e [really-executable-jars-maven-plugin](https://github.com/brianm/really-executable-jars-maven-plugin))** \u003ckbd\u003e★ 136\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eMaven plugin for making self-executing JARs.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"document-processing\"\u003e\n\u003csummary\u003e\u003cstrong\u003eDocument Processing\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that assist with processing office document formats._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2254⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;839🍴\u003c/code\u003e\u003c/b\u003e [Apache POI](https://github.com/apache/poi))** \u003ckbd\u003e★ 2.3k\u003c/kbd\u003e 🟢\u003cbr\u003eSupports OOXML (XLSX, DOCX, PPTX) as well as OLE2 (XLS, DOC or PPT).\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;585⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;144🍴\u003c/code\u003e\u003c/b\u003e [documents4j](https://github.com/documents4j/documents4j))** \u003ckbd\u003e★ 585\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eAPI for document format conversion using third-party converters such as MS Word.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2375⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1233🍴\u003c/code\u003e\u003c/b\u003e [docx4j](https://github.com/plutext/docx4j))** \u003ckbd\u003e★ 2.4k\u003c/kbd\u003e 🟢\u003cbr\u003eCreate and manipulate Microsoft Open XML files.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;908⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;145🍴\u003c/code\u003e\u003c/b\u003e [fastexcel](https://github.com/dhatim/fastexcel))** \u003ckbd\u003e★ 908\u003c/kbd\u003e 🟢\u003cbr\u003eHigh performance library to read and write large Excel (XLSX) worksheets.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;815⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;64🍴\u003c/code\u003e\u003c/b\u003e [html-to-markdown](https://github.com/xberg-io/html-to-markdown))** \u003ckbd\u003e★ 814\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eConverts HTML to CommonMark-compatible Markdown through a Java binding.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;23⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;1🍴\u003c/code\u003e\u003c/b\u003e [jackson-dataformat-spreadsheet](https://github.com/scndry/jackson-dataformat-spreadsheet))** \u003ckbd\u003e★ 23\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eJackson dataformat module for reading and writing Excel (XLSX/XLS) as POJOs via `ObjectMapper`.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;62⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;17🍴\u003c/code\u003e\u003c/b\u003e [Sheetz](https://github.com/chitralabs/sheetz))** \u003ckbd\u003e★ 62\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eReads and writes Excel, CSV and ODS files with annotation mapping, streaming, styling and validation.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;8705⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;527🍴\u003c/code\u003e\u003c/b\u003e [xberg](https://github.com/xberg-io/xberg))** \u003ckbd\u003e★ 8.7k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eExtracts text, tables and metadata from PDFs, Office documents, images and other formats through a Java binding.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;82⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;26🍴\u003c/code\u003e\u003c/b\u003e [zerocell](https://github.com/creditdatamw/zerocell))** \u003ckbd\u003e★ 82\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eAnnotation-based API for reading data from Excel sheets into POJOs with focus on reduced overhead.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"financial\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFinancial\u003c/strong\u003e \u003ckbd\u003e5 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries related to the financial domain._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;659⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;190🍴\u003c/code\u003e\u003c/b\u003e [Cassandre](https://github.com/cassandre-tech/cassandre-trading-bot))** \u003ckbd\u003e★ 659\u003c/kbd\u003e \u003ckbd\u003eGPL-3.0\u003c/kbd\u003e 🔴\u003cbr\u003eTrading bot framework.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;345⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;95🍴\u003c/code\u003e\u003c/b\u003e [Philadelphia](https://github.com/paritytrading/philadelphia))** \u003ckbd\u003e★ 344\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLow-latency financial information exchange.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;996⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;404🍴\u003c/code\u003e\u003c/b\u003e [Stripe](https://github.com/stripe/stripe-java))** \u003ckbd\u003e★ 993\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eIntegration with the Stripe API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2471⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;800🍴\u003c/code\u003e\u003c/b\u003e [ta4j](https://github.com/ta4j/ta4j))** \u003ckbd\u003e★ 2.5k\u003c/kbd\u003e 🟢\u003cbr\u003eLibrary for technical analysis.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;38⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;6🍴\u003c/code\u003e\u003c/b\u003e [Wickra](https://github.com/wickra-lib/wickra))** \u003ckbd\u003e★ 38\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eTechnical-analysis library with 514 streaming O(1)-per-tick indicators on a native Rust core, on Maven Central as org.wickra:wickra; more indicators and incremental updates than the pure-Java ta4j.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"flat-file\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFlat File\u003c/strong\u003e \u003ckbd\u003e3 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks and libraries for reading and writing fixed-length and delimited flat files._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;68⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;33🍴\u003c/code\u003e\u003c/b\u003e [BeanIO](https://github.com/beanio/beanio))** \u003ckbd\u003e★ 68\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eMaps flat files of fixed-length or delimited records to and from Java beans using XML or annotation configuration.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;52⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;30🍴\u003c/code\u003e\u003c/b\u003e [fixedformat4j](https://github.com/jeyben/fixedformat4j))** \u003ckbd\u003e★ 52\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAnnotation-driven mapping of fixed-width flat files to and from POJOs and Java records.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;64⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;20🍴\u003c/code\u003e\u003c/b\u003e [Flatpack](https://github.com/Appendium/flatpack))** \u003ckbd\u003e★ 64\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eParses and writes delimited and fixed-length flat files with optional column-mapping definitions.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"formal-verification\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFormal Verification\u003c/strong\u003e \u003ckbd\u003e7 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Formal-methods tools: proof assistants, model checking, symbolic execution, etc._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;106⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;34🍴\u003c/code\u003e\u003c/b\u003e [CATG](https://github.com/ksen007/janala2))** \u003ckbd\u003e★ 106\u003c/kbd\u003e \u003ckbd\u003eBSD-2-Clause\u003c/kbd\u003e 🔴\u003cbr\u003eConcolic unit testing engine. Automatically generates unit tests using formal methods.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1142⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;436🍴\u003c/code\u003e\u003c/b\u003e [Checker Framework](https://github.com/typetools/checker-framework))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e 🟢\u003cbr\u003ePluggable type systems. Includes nullness types, physical units, immutability types and more. (GPL-2.0-only WITH Classpath-exception-2.0)\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;255⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;63🍴\u003c/code\u003e\u003c/b\u003e [Daikon](https://github.com/codespecs/daikon))** \u003ckbd\u003e★ 255\u003c/kbd\u003e 🟢\u003cbr\u003eDetects likely program invariants and generates JML specs based on those invariants.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;614⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;407🍴\u003c/code\u003e\u003c/b\u003e [Java Path Finder (JPF)](https://github.com/javapathfinder/jpf-core))** \u003ckbd\u003e★ 614\u003c/kbd\u003e 🟢\u003cbr\u003eJVM formal verification tool containing a model checker and more. Created by NASA.\n\n\u003e * 🌎 [JMLOK 2.0](massoni.computacao.ufcg.edu.br/home/jmlok)**\u003cbr\u003eDetects inconsistencies between code and JML specification through feedback-directed random tests generation, and suggests a likely cause for each nonconformance detected. (GPL-3.0-only)\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;87⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;44🍴\u003c/code\u003e\u003c/b\u003e [KeY](https://github.com/KeYProject/key))** \u003ckbd\u003e★ 87\u003c/kbd\u003e 🟢\u003cbr\u003eFormal 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. (GPL-2.0-or-later)\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;182⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;39🍴\u003c/code\u003e\u003c/b\u003e [OpenJML](https://github.com/OpenJML/OpenJML))** \u003ckbd\u003e★ 182\u003c/kbd\u003e 🟢\u003cbr\u003eTranslates JML specifications into SMT-LIB format and passes the proof problems implied by the program to backend solvers. (GPL-2.0-only)\n\n\u003c/details\u003e\n\n\u003cdetails id=\"functional-programming\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFunctional Programming\u003c/strong\u003e \u003ckbd\u003e10 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that facilitate functional programming._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1328⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;134🍴\u003c/code\u003e\u003c/b\u003e [Cyclops](https://github.com/aol/cyclops))** \u003ckbd\u003e★ 1.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eMonad and stream utilities, comprehensions, pattern matching, functional extensions for all JDK collections, future streams, trampolines and much more.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;576⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;47🍴\u003c/code\u003e\u003c/b\u003e [derive4j](https://github.com/derive4j/derive4j))** \u003ckbd\u003e★ 576\u003c/kbd\u003e 🔴\u003cbr\u003eJava 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching and morphisms. (GPL-3.0-only)\n\n\u003e * 🌎 [Fugue](bitbucket.org/atlassian/fugue)**\u003cbr\u003eFunctional extensions to Guava.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1619⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;250🍴\u003c/code\u003e\u003c/b\u003e [Functional Java](https://github.com/functionaljava/functionaljava))** \u003ckbd\u003e★ 1.6k\u003c/kbd\u003e 🔴\u003cbr\u003eImplements numerous basic and advanced programming abstractions that assist composition-oriented development.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2119⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;175🍴\u003c/code\u003e\u003c/b\u003e [jOOλ](https://github.com/jOOQ/jOOL))** \u003ckbd\u003e★ 2.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eExtension to Java 8 that aims to fix gaps in lambda by providing numerous missing types and a rich set of sequential Stream API additions.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;29⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;1🍴\u003c/code\u003e\u003c/b\u003e [Packrat](https://github.com/jhspetersson/packrat))** \u003ckbd\u003e★ 29\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGatherers library for Java Stream API. Gatherers can enhance streams with custom intermediate operations.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;679⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;63🍴\u003c/code\u003e\u003c/b\u003e [Parallel Collectors](https://github.com/pivovarit/parallel-collectors))** \u003ckbd\u003e★ 679\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eStream API Collectors for parallel processing with custom thread pools, designed for I/O-heavy workloads.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;487⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;55🍴\u003c/code\u003e\u003c/b\u003e [protonpack](https://github.com/poetix/protonpack))** \u003ckbd\u003e★ 487\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eCollection of stream utilities.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2288⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;258🍴\u003c/code\u003e\u003c/b\u003e [StreamEx](https://github.com/amaembo/streamex))** \u003ckbd\u003e★ 2.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eEnhances Java 8 Streams.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6160⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;671🍴\u003c/code\u003e\u003c/b\u003e [Vavr](https://github.com/vavr-io/vavr))** \u003ckbd\u003e★ 6.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFunctional component library that provides persistent data types and functional control structures.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"game-development\"\u003e\n\u003csummary\u003e\u003cstrong\u003eGame Development\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Frameworks that support the development of games._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4835⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;710🍴\u003c/code\u003e\u003c/b\u003e [FXGL](https://github.com/AlmasB/FXGL))** \u003ckbd\u003e★ 4.8k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eJavaFX Game Development Framework.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;25⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;1🍴\u003c/code\u003e\u003c/b\u003e [input4j](https://github.com/gurkenlabs/input4j))** \u003ckbd\u003e★ 25\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eLightweight, cross-platform library for gamepad and joystick input handling.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1145⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;217🍴\u003c/code\u003e\u003c/b\u003e [JBox2D](https://github.com/jbox2d/jbox2d))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e \u003ckbd\u003eBSD-2-Clause\u003c/kbd\u003e 🔴\u003cbr\u003ePort of the renowned C++ 2D physics engine.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4272⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1180🍴\u003c/code\u003e\u003c/b\u003e [jMonkeyEngine](https://github.com/jMonkeyEngine/jmonkeyengine))** \u003ckbd\u003e★ 4.3k\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟢\u003cbr\u003eGame engine for modern 3D development.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;25255⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6539🍴\u003c/code\u003e\u003c/b\u003e [libGDX](https://github.com/libgdx/libgdx))** \u003ckbd\u003e★ 25.3k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAll-round cross-platform, high-level framework.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;833⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;105🍴\u003c/code\u003e\u003c/b\u003e [Litiengine](https://github.com/gurkenlabs/litiengine))** \u003ckbd\u003e★ 833\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eAWT-based, lightweight 2D game engine.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5409⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;709🍴\u003c/code\u003e\u003c/b\u003e [LWJGL](https://github.com/LWJGL/lwjgl3))** \u003ckbd\u003e★ 5.4k\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟢\u003cbr\u003eRobust framework that abstracts libraries like OpenGL/CL/AL.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;505⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;40🍴\u003c/code\u003e\u003c/b\u003e [Mini2Dx](https://github.com/mini2Dx/mini2Dx))** \u003ckbd\u003e★ 505\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eBeginner-friendly, master-ready framework for rapidly prototyping and building 2D games.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;95⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;9🍴\u003c/code\u003e\u003c/b\u003e [vulkan4j](https://github.com/chuigda/vulkan4j))** \u003ckbd\u003e★ 95\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟠\u003cbr\u003eVulkan, OpenGL ES2 and GLFW Memory Allocator bindings.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"geospatial\"\u003e\n\u003csummary\u003e\u003cstrong\u003eGeospatial\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries for working with geospatial data and algorithms._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;124⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;51🍴\u003c/code\u003e\u003c/b\u003e [Apache SIS](https://github.com/apache/sis))** \u003ckbd\u003e★ 124\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLibrary for developing geospatial applications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;?⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;?🍴\u003c/code\u003e\u003c/b\u003e [ArcGIS Maps SDK for Java](https://github.com/Esri/arcgis-maps-sdk-java-samples/))** \u003ckbd\u003e★ 131\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eJavaFX library for adding mapping and GIS functionality to desktop apps.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;434⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;92🍴\u003c/code\u003e\u003c/b\u003e [Geo](https://github.com/davidmoten/geo))** \u003ckbd\u003e★ 434\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGeoHash utilities in Java.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1914⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1188🍴\u003c/code\u003e\u003c/b\u003e [GeoTools](https://github.com/geotools/geotools))** \u003ckbd\u003e★ 1.9k\u003c/kbd\u003e \u003ckbd\u003eLGPL-2.1\u003c/kbd\u003e 🟢\u003cbr\u003eLibrary that provides tools for geospatial data.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6594⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1946🍴\u003c/code\u003e\u003c/b\u003e [GraphHopper](https://github.com/graphhopper/graphhopper))** \u003ckbd\u003e★ 6.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eRoad-routing engine. Used as a Java library or standalone web service.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;220⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;67🍴\u003c/code\u003e\u003c/b\u003e [H2GIS](https://github.com/orbisgis/h2gis))** \u003ckbd\u003e★ 220\u003c/kbd\u003e \u003ckbd\u003eLGPL-3.0\u003c/kbd\u003e 🟢\u003cbr\u003eSpatial extension of the H2 database.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;68⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;28🍴\u003c/code\u003e\u003c/b\u003e [Jgeohash](https://github.com/astrapi69/jgeohash))** \u003ckbd\u003e★ 68\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eLibrary for using the GeoHash algorithm.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1397⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;398🍴\u003c/code\u003e\u003c/b\u003e [Mapsforge](https://github.com/mapsforge/mapsforge))** \u003ckbd\u003e★ 1.4k\u003c/kbd\u003e \u003ckbd\u003eLGPL-3.0\u003c/kbd\u003e 🟢\u003cbr\u003eMap rendering based on OpenStreetMap data.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;962⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;173🍴\u003c/code\u003e\u003c/b\u003e [Spatial4j](https://github.com/locationtech/spatial4j))** \u003ckbd\u003e★ 962\u003c/kbd\u003e 🟢\u003cbr\u003eGeneral-purpose spatial/geospatial library.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"gui\"\u003e\n\u003csummary\u003e\u003cstrong\u003eGUI\u003c/strong\u003e \u003ckbd\u003e6 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries to create modern graphical user interfaces._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4235⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;330🍴\u003c/code\u003e\u003c/b\u003e [FlatLaf](https://github.com/JFormDesigner/FlatLaf))** \u003ckbd\u003e★ 4.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eModern Swing Look and Feel with Darcula and IntelliJ themes.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3266⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;585🍴\u003c/code\u003e\u003c/b\u003e [JavaFX](https://github.com/openjdk/jfx))** \u003ckbd\u003e★ 3.3k\u003c/kbd\u003e \u003ckbd\u003eGPL-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eSuccessor of Swing.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;818⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;232🍴\u003c/code\u003e\u003c/b\u003e [Scene Builder](https://github.com/gluonhq/scenebuilder))** \u003ckbd\u003e★ 818\u003c/kbd\u003e 🟠\u003cbr\u003eVisual layout tool for JavaFX applications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;150⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;11🍴\u003c/code\u003e\u003c/b\u003e [Sierra](https://github.com/HTTP-RPC/Sierra))** \u003ckbd\u003e★ 150\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eLightwieght declarative DSL for rapid development of Swing applications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;332⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;15🍴\u003c/code\u003e\u003c/b\u003e [SnapKit](https://github.com/reportmill/SnapKit))** \u003ckbd\u003e★ 332\u003c/kbd\u003e 🟢\u003cbr\u003eModern Java UI library for both desktop and web.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;199⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;203🍴\u003c/code\u003e\u003c/b\u003e [SWT](https://github.com/eclipse-platform/eclipse.platform.swt))** \u003ckbd\u003e★ 199\u003c/kbd\u003e \u003ckbd\u003eEPL-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGraphical widget toolkit.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"high-performance\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHigh Performance\u003c/strong\u003e \u003ckbd\u003e7 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Everything about high-performance computation, from collections to specific libraries._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3224⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;446🍴\u003c/code\u003e\u003c/b\u003e [Agrona](https://github.com/real-logic/Agrona))** \u003ckbd\u003e★ 3.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eData structures and utility methods that are common in high-performance applications.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;18416⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3973🍴\u003c/code\u003e\u003c/b\u003e [Disruptor](https://github.com/LMAX-Exchange/disruptor))** \u003ckbd\u003e★ 18.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eInter-thread messaging library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2642⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;690🍴\u003c/code\u003e\u003c/b\u003e [Eclipse Collections](https://github.com/eclipse/eclipse-collections))** \u003ckbd\u003e★ 2.6k\u003c/kbd\u003e 🟢\u003cbr\u003eCollections framework inspired by Smalltalk.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2207⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;229🍴\u003c/code\u003e\u003c/b\u003e [fastutil](https://github.com/vigna/fastutil))** \u003ckbd\u003e★ 2.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFast and compact type-specific collections.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1048⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;165🍴\u003c/code\u003e\u003c/b\u003e [HPPC](https://github.com/carrotsearch/hppc))** \u003ckbd\u003e★ 1.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003ePrimitive collections.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3857⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;591🍴\u003c/code\u003e\u003c/b\u003e [JCTools](https://github.com/JCTools/JCTools))** \u003ckbd\u003e★ 3.9k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eConcurrency tools currently missing from the JDK.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1019⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;140🍴\u003c/code\u003e\u003c/b\u003e [Koloboke](https://github.com/leventov/Koloboke))** \u003ckbd\u003e★ 1.0k\u003c/kbd\u003e 🔴\u003cbr\u003eCarefully designed extension of the Java Collections Framework with primitive specializations and more.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"http-clients\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHTTP Clients\u003c/strong\u003e \u003ckbd\u003e11 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that assist with creating HTTP requests and/or binding responses._\n\n\u003e * 🌎 [Apache HttpComponents](hc.apache.org/)** \u003ckbd\u003e★ 2.0k\u003c/kbd\u003e 🟢\u003cbr\u003eToolset of low-level Java components focused on HTTP and related protocols.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6393⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1596🍴\u003c/code\u003e\u003c/b\u003e [Async Http Client](https://github.com/AsyncHttpClient/async-http-client))** \u003ckbd\u003e★ 6.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAsynchronous HTTP and WebSocket client library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;26⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;1🍴\u003c/code\u003e\u003c/b\u003e [Avaje Http Client](https://github.com/avaje/avaje-http-client))** \u003ckbd\u003e★ 26\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eWrapper on JDK 11's HttpClient that adds Feign-like interface among other enhancements.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;9794⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1944🍴\u003c/code\u003e\u003c/b\u003e [Feign](https://github.com/OpenFeign/feign))** \u003ckbd\u003e★ 9.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eHTTP client binder inspired by Retrofit, JAXRS-2.0, and WebSocket.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1440⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;473🍴\u003c/code\u003e\u003c/b\u003e [Google HTTP Client](https://github.com/googleapis/google-http-java-client))** \u003ckbd\u003e★ 1.4k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003ePluggable HTTP transport abstraction with support for java.net.HttpURLConnection, Apache HTTP Client, Android, Google App Engine, XML, Gson, Jackson and Protobuf.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1075⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;83🍴\u003c/code\u003e\u003c/b\u003e [JQuickCurl](https://github.com/paohaijiao/jquick-curl))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e 🟢\u003cbr\u003eExecutes HTTP requests from cURL syntax through annotations, XML configuration and dynamic proxy clients.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;297⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;17🍴\u003c/code\u003e\u003c/b\u003e [methanol](https://github.com/mizosoft/methanol))** \u003ckbd\u003e★ 298\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟠\u003cbr\u003eHTTP client extensions library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;43921⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;7336🍴\u003c/code\u003e\u003c/b\u003e [Retrofit](https://github.com/lysine-dev/retrofit))** \u003ckbd\u003e★ 43.9k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eTypesafe REST client.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4616⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1225🍴\u003c/code\u003e\u003c/b\u003e [Ribbon](https://github.com/Netflix/ribbon))** \u003ckbd\u003e★ 4.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟠\u003cbr\u003eClient-side IPC library that is battle-tested in the cloud.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;340⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;77🍴\u003c/code\u003e\u003c/b\u003e [Riptide](https://github.com/zalando/riptide))** \u003ckbd\u003e★ 340\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eClient-side response routing for Spring's RestTemplate.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2704⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;590🍴\u003c/code\u003e\u003c/b\u003e [unirest-java](https://github.com/Kong/unirest-java))** \u003ckbd\u003e★ 2.7k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eSimplified, lightweight HTTP client library.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"hypermedia-types\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHypermedia Types\u003c/strong\u003e \u003ckbd\u003e4 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that handle serialization to hypermedia types._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;25⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;6🍴\u003c/code\u003e\u003c/b\u003e [hate](https://github.com/blackdoor/hate))** \u003ckbd\u003e★ 25\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🔴\u003cbr\u003eBuilds hypermedia-friendly objects according to HAL specification.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;388⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;155🍴\u003c/code\u003e\u003c/b\u003e [JSON-LD](https://github.com/jsonld-java/jsonld-java))** \u003ckbd\u003e★ 388\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🔴\u003cbr\u003eJSON-LD implementation.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;28⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;16🍴\u003c/code\u003e\u003c/b\u003e [Siren4J](https://github.com/eserating-chwy/siren4j))** \u003ckbd\u003e★ 28\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🔴\u003cbr\u003eLibrary for the Siren specification.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1088⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;472🍴\u003c/code\u003e\u003c/b\u003e [Spring HATEOAS](https://github.com/spring-projects/spring-hateoas))** \u003ckbd\u003e★ 1.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eStandalone and Spring support for building hypermedia-based APIs using HAL, HAL FORMS, Collection+JSON, ALPS and UBER.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"ide\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIDE\u003c/strong\u003e \u003ckbd\u003e6 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Integrated development environments that try to simplify several aspects of development._\n\n\u003e * 🌎 [Eclipse Java IDE](www.eclipse.org)** \u003ckbd\u003e★ 643\u003c/kbd\u003e \u003ckbd\u003eEPL-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eExtensible Java IDE assembled from the Eclipse Platform, JDT and PDE.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;20415⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5997🍴\u003c/code\u003e\u003c/b\u003e [IntelliJ IDEA](https://github.com/JetBrains/intellij-community))** \u003ckbd\u003e★ 20.4k\u003c/kbd\u003e 🟢\u003cbr\u003eSupports many JVM languages and provides good options for Android development. The commercial edition targets the enterprise sector.\n\n\u003e * 🌎 [jGRASP](www.jgrasp.org)**\u003cbr\u003eCreated to provide software visualizations that work in conjunction with the debugger such as Control Structure Diagrams, UML class diagrams and Object Viewer.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3083⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;935🍴\u003c/code\u003e\u003c/b\u003e [NetBeans](https://github.com/apache/netbeans))** \u003ckbd\u003e★ 3.1k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eProvides integration for several Java SE and EE features, from database access to HTML5.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;43⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;2🍴\u003c/code\u003e\u003c/b\u003e [SnapCode](https://github.com/reportmill/SnapCode))** \u003ckbd\u003e★ 43\u003c/kbd\u003e 🟢\u003cbr\u003eModern IDE for Java running in the browser, focused on education.\n\n\u003e * 🌎 [Visual Studio Code Java](code.visualstudio.com/docs/languages/java)** \u003ckbd\u003e★ 3.8k\u003c/kbd\u003e 🟢\u003cbr\u003eExtension suite providing Java language support, debugging, testing, Maven, Gradle and project management in Visual Studio Code.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"imagery\"\u003e\n\u003csummary\u003e\u003cstrong\u003eImagery\u003c/strong\u003e \u003ckbd\u003e9 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that assist with the creation, evaluation or manipulation of graphical images._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;17⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;5🍴\u003c/code\u003e\u003c/b\u003e [Barcode-Lib4J](https://github.com/vws-java/Barcode-Lib4J))** \u003ckbd\u003e★ 17\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eGenerates QR Code, DataMatrix, and other 1D/2D barcodes as vector (PDF, EPS, SVG) and raster (PNG, BMP, JPG) images with DPI awareness, high precision, and CMYK color model support.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;396⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;119🍴\u003c/code\u003e\u003c/b\u003e [image-comparison](https://github.com/romankh3/image-comparison))** \u003ckbd\u003e★ 396\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eLibrary that compares 2 images with the same sizes and shows the differences visually by drawing rectangles. Some parts of the image can be excluded from the comparison.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1246⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;233🍴\u003c/code\u003e\u003c/b\u003e [Imgscalr](https://github.com/rkalla/imgscalr))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eSimple, efficient and hardware-accelerated image-scaling library implemented in pure Java 2D.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1185⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;146🍴\u003c/code\u003e\u003c/b\u003e [scrimage](https://github.com/sksamuel/scrimage))** \u003ckbd\u003e★ 1.2k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eImmutable, functional, and performant JVM library for manipulation of images.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1756⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;380🍴\u003c/code\u003e\u003c/b\u003e [Tess4J](https://github.com/nguyenq/tess4j))** \u003ckbd\u003e★ 1.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eJNA wrapper for Tesseract OCR API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;5426⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;794🍴\u003c/code\u003e\u003c/b\u003e [Thumbnailator](https://github.com/coobird/thumbnailator))** \u003ckbd\u003e★ 5.4k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟠\u003cbr\u003eHigh-quality thumbnail generation library.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2134⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;327🍴\u003c/code\u003e\u003c/b\u003e [TwelveMonkeys](https://github.com/haraldk/TwelveMonkeys))** \u003ckbd\u003e★ 2.1k\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🟢\u003cbr\u003eCollection of plugins that extend the number of supported image file formats.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;130⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;16🍴\u003c/code\u003e\u003c/b\u003e [vips-ffm](https://github.com/lopcode/vips-ffm))** \u003ckbd\u003e★ 130\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eComprehensive bindings for libvips, using Java's \"Foreign Function \u0026 Memory\" API.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;34036⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;9433🍴\u003c/code\u003e\u003c/b\u003e [ZXing](https://github.com/zxing/zxing))** \u003ckbd\u003e★ 34.0k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eMulti-format 1D/2D barcode image processing library.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"introspection\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIntrospection\u003c/strong\u003e \u003ckbd\u003e6 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries that help make the Java introspection and reflection API easier and faster to use._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3000⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;309🍴\u003c/code\u003e\u003c/b\u003e [ClassGraph](https://github.com/classgraph/classgraph))** \u003ckbd\u003e★ 3.0k\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🟢\u003cbr\u003eClassGraph (formerly FastClasspathScanner) is an uber-fast, ultra-lightweight, parallelized classpath scanner and module scanner for Java, Scala, Kotlin and other JVM languages.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;2830⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;378🍴\u003c/code\u003e\u003c/b\u003e [jOOR](https://github.com/jOOQ/jOOR))** \u003ckbd\u003e★ 2.8k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003ejOOR stands for jOOR Object Oriented Reflection. It is a simple wrapper for the java.lang.reflect package.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;109⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;33🍴\u003c/code\u003e\u003c/b\u003e [Mirror](https://github.com/vidageek/mirror))** \u003ckbd\u003e★ 109\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🔴\u003cbr\u003eMirror was created to bring light to a simple problem, usually named ReflectionUtil, which is on almost all projects that rely on reflection to do advanced tasks.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;631⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;95🍴\u003c/code\u003e\u003c/b\u003e [Objenesis](https://github.com/easymock/objenesis))** \u003ckbd\u003e★ 631\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eAllows dynamic instantiation without default constructor, e.g. constructors which have required arguments, side effects or throw exceptions.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1540⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;219🍴\u003c/code\u003e\u003c/b\u003e [ReflectASM](https://github.com/EsotericSoftware/reflectasm))** \u003ckbd\u003e★ 1.5k\u003c/kbd\u003e \u003ckbd\u003eBSD-3-Clause\u003c/kbd\u003e 🔴\u003cbr\u003eReflectASM is a very small Java library that provides high performance reflection by using code generation.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;4763⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;701🍴\u003c/code\u003e\u003c/b\u003e [Reflections](https://github.com/ronmamo/reflections))** \u003ckbd\u003e★ 4.8k\u003c/kbd\u003e \u003ckbd\u003eWTFPL\u003c/kbd\u003e 🔴\u003cbr\u003eReflections scans your classpath, indexes the metadata, allows you to query it on runtime and may save and collect that information for many modules within your project.\n\n\u003c/details\u003e\n\n\u003cdetails id=\"job-scheduling\"\u003e\n\u003csummary\u003e\u003cstrong\u003eJob Scheduling\u003c/strong\u003e \u003ckbd\u003e7 projects\u003c/kbd\u003e\u003c/summary\u003e\n\n_Libraries for scheduling background jobs._\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1593⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;247🍴\u003c/code\u003e\u003c/b\u003e [db-scheduler](https://github.com/kagkarlsson/db-scheduler))** \u003ckbd\u003e★ 1.6k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003ePersistent and cluster-friendly scheduler.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;622⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;197🍴\u003c/code\u003e\u003c/b\u003e [easy-batch](https://github.com/j-easy/easy-batch))** \u003ckbd\u003e★ 622\u003c/kbd\u003e \u003ckbd\u003eMIT\u003c/kbd\u003e 🔴\u003cbr\u003eSet up batch jobs with simple processing pipelines. Records are read in sequence from a data source, processed in pipeline and written in batches to a data sink.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;3027⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;\u0026nbsp;319🍴\u003c/code\u003e\u003c/b\u003e [JobRunr](https://github.com/jobrunr/jobrunr))** \u003ckbd\u003e★ 3.0k\u003c/kbd\u003e 🟢\u003cbr\u003eJob scheduling library which utilizes lambdas for fire-and-forget, delayed and recurring jobs. Guarantees execution by single scheduler instance using optimistic locking. Has features for persistence, minimal dependencies and is embeddable.\n\n\u003e **\u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;6744⭐\u003c/code\u003e\u003c/b\u003e \u003cb\u003e\u003ccode\u003e\u0026nbsp;\u0026nbsp;1987🍴\u003c/code\u003e\u003c/b\u003e [Quartz](https://github.com/quartz-scheduler/quartz))** \u003ckbd\u003e★ 6.7k\u003c/kbd\u003e \u003ckbd\u003eApache-2.0\u003c/kbd\u003e 🟢\u003cbr\u003eFeature-rich, open source ","projects_url":"https://awesome.ecosyste.ms/api/v1/lists/correia-jpv%2Ffucking-awesome-java/projects"}