The dev-java category contains libraries and utilities relevant to the Java programming language.
angus-activation Provides the implementation of the Jakarta Activation Specification
animal-sniffer-annotations Java annotations for marking methods that Animal Sniffer should ignore
ant Java-based build tool similar to 'make' that uses XML configuration files
ant-antlr Apache Ant's optional tasks for Antlr
ant-apache-bcel Apache Ant's optional tasks depending on bcel
ant-apache-bsf Apache Ant's optional tasks depending on bsf-2.3
ant-apache-log4j Apache Ant's optional tasks depending on log4j-12-api-2
ant-apache-oro Apache Ant's optional tasks depending on jakarta-oro-2.0
ant-apache-regexp Apache Ant's optional tasks depending on jakarta-regexp-1.4
ant-apache-resolver Apache Ant's optional tasks depending on xml-commons-resolver
ant-apache-xalan2 Apache Ant's optional tasks depending on xalan
ant-commons-logging Apache Ant's optional tasks depending on commons-logging
ant-commons-net Apache Ant's optional tasks depending on commons-net
ant-contrib Ant-contrib tasks for Apache Ant
ant-core Java-based build tool similar to 'make' that uses XML configuration files
ant-eclipse-ecj Ant Compiler Adapter for Eclipse Java Compiler
ant-ivy Ivy is a free java based dependency manager
ant-jai Apache Ant's optional tasks depending on sun-jai-bin
ant-javamail Apache Ant's optional tasks depending on gnu-jaf-1
ant-jdepend Apache Ant's optional tasks depending on jdepend
ant-jmf Apache Ant's optional tasks for the Java Media Framework (JMF)
ant-jsch Apache Ant's optional tasks depending on jsch
ant-junit Apache Ant's optional tasks depending on junit
ant-junit4 Apache Ant's optional tasks depending on junit-4
ant-junitlauncher Apache Ant's optional tasks depending on
antlr A parser generator for many languages
antlr-runtime ANTLR 4 Runtime
antlr-tool The ANTLR 4 grammar compiler
ant-swing Apache Ant's optional tasks for Swing
ant-testutil Apache Ant's optional test utility classes
ant-xz Apache Ant's optional tasks for XZ compression
aopalliance Aspect-Oriented Programming (AOP) Alliance classes
apache-rat Release audit tool, focused on licenses
apache-rat-core The core functionality, shared by the Ant tasks and the Maven plugin
apache-rat-tasks A plugin for Apache Ant that runs Apache Rat to audit the source
apiguardian-api @org.apiguardian.api.API Java annotation provider
appenh Cross-platform access of java application properties
aqute-bnd-annotation bnd Annotations Library
asm Bytecode manipulation framework for Java
aspectj A seamless aspect-oriented extension to the Java programming language
assertj-core Rich and fluent assertions for testing for Java
batik XML Graphics Batik
bcel Apache Commons Bytecode Engineering Library
bcmail The Bouncy Castle Java S/MIME APIs for handling S/MIME protocols
bcpg Java cryptography APIs
bcpkix Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation
bcprov Java cryptography APIs
bcutil Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls
bnd-junit Junit plugin for bndlib, a swiss army knife for OSGi
bndlib A swiss army knife for OSGi
brotli-dec Brotli decompressor
browserlauncher2 A library that facilitates opening a browser from a Java application
bsf Bean Script Framework
bsh A small embeddable Java source interpreter
byaccj A Java extension of BSD YACC-compatible parser generator
byte-buddy Offers convenience for attaching an agent to the local or a remote VM
c3p0 JDBC drivers with JNDI-bindable DataSources
cache2k-api light weight and high performance Java caching library: API
cache2k-core light weight and high performance Java caching library: core
cal10n java library for writing localized messages using resource bundle
cdi-api APIs for CDI (Contexts and Dependency Injection for Java)
cglib cglib is a powerful, high performance and quality Code Generation Library
checker-framework-qual Annotations for type-checking by the Checker Framework
commons-beanutils Provides easy-to-use wrappers around Reflection and Introspection APIs
commons-cli A Java library for working with the command line arguments and options
commons-codec Implementations of common encoders and decoders in Java
commons-collections Jakarta-Commons Collections Component
commons-compress Java API for working with archive files
commons-csv Simple interface for reading and writing CSV files of various types
commons-daemon Tools to allow Java programs to run as UNIX daemons
commons-digester Reads XML configuration files to provide initialization of various Java objects
commons-httpclient The Jakarta Commons HttpClient library
commons-imaging Apache Commons Imaging (previously Sanselan) is a pure-Java image library.
commons-io Utility classes, stream implementations, file filters, and much more
commons-junit4 Assertions etc. for those who write tests with JUNIT 4
commons-lang Commons components to manipulate core java classes
commons-logging Thin adapter allowing configurable bridging to other well known logging systems
commons-math Lightweight, self-contained mathematics and statistics components
commons-net Client-oriented Java library to implement many Internet protocols
commons-nullanalysis Annotations and utility classes for ECLIPSE annotation-base null analysis
commons-validator Commons component to validate user input, or data input
commons-vfs A single API for accessing various different file systems
conversant-disruptor Conversant Disruptor - very high throughput Java BlockingQueue
cortado Multimedia framework for Java written by Fluendo
coursier-bin Java/Scala artifact fetching, bundling and deploying
cpptasks Ant-tasks to compile various source languages and produce executables
dom4j flexible XML framework for Java
easymock Mock Objects for interfaces in JUnit tests by generating them on the fly
eclipse-ecj Eclipse Compiler for Java
emma Free Java code coverage tool
error-prone-annotations Java annotations for the Error Prone static analysis tool
failureaccess Guava's InternalFutureFailureAccess and InternalFutures classes.
fastinfoset Open Source implementation of the Fast Infoset Standard for Binary XML
fec Forward Error Correction library in Java
felix-framework Implementation of the OSGi R8 core framework specification
felix-main Open source OSGi framework by Apache Software Foundation
felix-resolver Provide OSGi resolver service.
felix-utils Utility classes for OSGi
findbugs-annotations Annotation defined by the FindBugs tool
fishbowl Use the AAA pattern for writing tests for code that throws an exception
fontbox An open source Java library for parsing font files
fop XML Graphics Format Object Processor All-In-One
freenet-ext Freenet REference Daemon
gin Google Gin (GWT INjection)
glassfish-persistence Glassfish implementation of persistence API
gnu-jaf GNU implementation of the JavaBeans Activation Framework
gnu-regexp GNU regular expression package for Java
gradle-bin A project automation and build tool with a Groovy based DSL
greenmail GreenMail - Email Test Servers
gson Gson JSON library
guava A collection of Google's core Java libraries
guava-testlib A set of java classes to assist the tests for Guava itself
guice Guice is a lightweight dependency injection framework for Java 6 and above
gwt Google Web Toolkit library
hamcrest Core API and libraries of hamcrest matcher framework.
hamcrest-core Library of matchers for building test expressions
hamcrest-generator Code generator for Hamcrest's library of matchers for building test expressions
hamcrest-library Core library of matchers for building test expressions
hashcash Generation and parsing of Hashcash
hawtjni-runtime A JNI code generator based on the generator used by the Eclipse SWT project
htmlcleaner HTML parser written in Java that can be used as a tool, library or Ant task
httpcomponents-client Apache HttpComponents Client
httpcore Apache HttpComponents Core (blocking I/O)
icedtea A harness to build OpenJDK using Free Software build tools and dependencies
icedtea-bin A Gentoo-made binary build of the IcedTea JDK
icedtea-sound Plugins for javax.sound
icedtea-web FOSS Java browser plugin and Web Start implementation
icu4j A set of Java libraries providing Unicode and Globalization support
identicon Visual representation of a hash value
injection-api Jakarta Dependency Injection
iso-relax Interfaces useful for applications which support RELAX Core
istack-commons-runtime istack common utility code
j2objc-annotations Annotations for the J2ObjC Java to Objective-C translator
jackcess A pure Java library for reading from and writing to MS Access databases
jackrabbit-webdav Fully conforming implementation of the JRC API (specified in JSR 170 and 283)
jackson-annotations Core annotations used for value types, used by Jackson data binding package.
jackson-core Core Jackson processing abstractions (Streaming API), implementation for JSON
jackson-databind General data-binding functionality for Jackson: works on core streaming API
jackson-dataformat-xml Data format extension for Jackson
jackson-dataformat-yaml Support for reading and writing YAML-encoded data via Jackson abstractions
jackson-module-jakarta-xmlbind Support for using Jakarta XML Bind (aka JAXB 3.0) annotations
jacl Jacl is an implementation of Tcl written in Java
jai-imageio-core Java Advanced Imaging Image I/O Tools API core (standalone)
jai-imageio-jpeg2000 JPEG2000 support for Java Advanced Imaging Image I/O Tools API
jakarta-activation Jakarta Activation
jakarta-activation-api Jakarta Activation API jar
jakarta-annotations-api Jakarta Annotations API
jakartaee-migration Apache Tomcat tool for migration from Java EE 8 to Jakarta EE 9
jakarta-el-api Jakarta Expression Language defines an expression language for Java applications
jakarta-interceptors Jakarta Interceptors
jakarta-json-api JSR 374 (JSON Processing) API
jakarta-mail Implementation of the Jakarta Mail API
jakarta-mail-api Jakarta Mail API 2.1 Specification API
jakarta-oro A set of text-processing Java classes
jakarta-regexp 100% Pure Java Regular Expression package
jakarta-servlet-api Javax servlet API
jakarta-xml-soap-api SOAP with Attachments API for Java (SAAJ) API (Eclipse Project for JAX-WS)
jal Partial port of the C++ Standard Template Library
jansi Jansi is a java library for generating and interpreting ANSI escape sequences.
jansi-native Native JNI component for dev-java/jansi
javacc Java Compiler Compiler - The Java Parser Generator
java-config Java environment configuration query tool
javacup CUP Parser Generator for Java
java-dep-check Java Dependency checker
java-diff-utils Library for computing diffs, applying patches, generationg side-by-side view
java-getopt Java command line option parser
javahelp The JavaHelp system online help system
java-service-wrapper A wrapper that makes it possible to install a Java Application as daemon
javassist A class library for editing bytecodes in Java.
javatoolkit Collection of Gentoo-specific tools for Java
javax-el-api Expression Language API
javax-inject Dependency injection for Java (JSR-330)
javax-jms-api Jakarta Messaging
javax-jsp-api JavaServer Pages(TM) API JSR-000152 JSR-000245
javax-mail Jakarta Mail API
javax-persistence-api Persistence API
javax-servlet-api JavaServlet(TM) Specification
jaxb-api Jakarta XML Binding API
jaxb-runtime JAXB (JSR 222) Reference Implementation
jaxb-stax-ex Extensions to JSR-173 StAX API.
jaxen Jaxen is a universal XPath engine for Java
jax-rpc-api Eclipse Project for Stable EE4J APIs
jaxrs-api Jakarta RESTful Web Services API
jaxws-api JAX-WS (JSR 224) API (Eclipse Project for JAX-WS)
jbcrypt Java implementation of OpenBSD's Blowfish password hashing code
jbig2-imageio PDFBox JBIG2 ImageIO plugin
jbitcollider-core Core classes of jBitcollider: org.bitpedia.collider.core
jboss-jms-api JSR-000914: Java(TM) Message Service (JMS) 1.1 API
jcalendar Java date chooser bean for graphically picking a date
jchart2d A minimalistic realtime charting library for Java
jcifs Library that implements the CIFS/SMB networking protocol in Java
jclasslib Java bytecode viewer
jcommander Command line parsing framework for Java
jctools-core Java Concurrency Tools Core Library
jdbc-mysql JDBC Type 4 driver for MySQL
jdbc-postgresql Java JDBC 4.2 (JRE 8+) driver for PostgreSQL database
jdepend Traverses Java class file directories and generates design quality metrics
jdisasm A disassembler for Java .class files
jdom Java API to manipulate XML data
jeromq Pure Java implementation of libzmq
jffi Java Foreign Function Interface
jflex JFlex is a lexical analyzer generator for Java
jgoodies-common JGoodies Common Library
jgoodies-looks JGoodies Looks Library
jide-oss JIDE Common Layer (Professional Swing Components)
jline A Java library for handling console input
jmh-core Harness for building, running, and analysing nano/micro/milli/macro benchmarks
jmock Library for testing Java code using mock objects
jna Java Native Access
jnacl Pure Java implementation of NaCl: Networking and Cryptography library
jnr-a64asm A pure-java A64 assembler
jnr-constants A set of platform constants (e.g. errno values)
jnr-ffi A library for invoking native functions from java
jnr-netdb Network services database access for java
jnr-posix Common cross-project/cross-platform POSIX APIs
jnr-x86asm A pure-java port of asmjit
joda-convert Library to convert Objects to and from String
joda-time Date and time library to replace JDK date handling
jol-core Java Object Layout: Core
jopt-simple A Java library for parsing command line options
jrobin JRobin is a 100% pure Java alternative to RRDTool
jsch JSch is a pure Java implementation of SSH2
jsch-agent-proxy a proxy to ssh-agent and Pageant in Java
json A reference implementation of a JSON package in Java
jsonrpc2-base Represent, parse and serialise JSON-RPC 2.0 messages
jsonrpc2-server Server framework for processing JSON-RPC 2.0 messages
json-simple Java 7+ toolkit to quickly develop RFC 4627 JSON compatible applications
json-smart old JSON parser
jsr305 Annotations for Software Defect Detection in Java
jstl Jakarta Standard Tag Library API
jstl-api Jakarta Standard Tag Library API
jtds jTDS - SQL Server and Sybase JDBC driver
jtidy Java port of HTML Tidy, an HTML syntax checker and pretty printer
jul-to-slf4j JUL to SLF4J bridge
junit Simple framework to write repeatable tests
junit-clptr ClassLoader per Test runner for JUnit 4.12+
junit-dataprovider The common core for a TestNG like dataprovider runner for JUnit
junitparams Better parameterised tests for JUnit
jzlib JZlib is a re-implementation of zlib in pure Java
kafka-clients Apache Kafka distributed event streaming platform
leiningen-bin Automate Clojure projects without setting your hair on fire
libg Lots of small utilities for bndlib, a swiss army knife for OSGi
lmax-disruptor A High Performance Inter-Thread Messaging Library
loadlib Load native libs embedded as resources in a JAR file from Java transparently
log4j-12-api The Apache Log4j 1.x Compatibility API
log4j-api The Apache Log4j API
log4j-core The Apache Log4j Implementation
log4j-over-slf4j Log4j implemented over SLF4J
lucene High-performance, full-featured text search engine written entirely in Java
lz4-java LZ4 compression for Java
lzma Java code for LZMA compression and decompression
lzmajio LzmaInputStream/LzmaOutputStream interacting with underlying LZMA en-/decoders
maven-bin Project Management and Comprehension Tool for Java
mchange-commons a library of arguably useful Java utilities.
memoryfilesystem An in memory implementation of a JSR-203 file system.
mersennetwister Modified MersenneTwister java port for Freenet
metainf-services Generates META-INF/services files automatically
miglayout MiGLayout - Java Layout Manager for Swing, SWT and JavaFX
mill-bin A Java/Scala build tool
minidns-core DNS library for Java and Android systems
mockito Mockito mock objects library core API and implementation
msv Multi-Schema Validator Core package
mvel MVFLEX Expression Language
objenesis A library for instantiating Java objects
openjdk Open source implementation of the Java programming language
openjdk-bin Prebuilt Java JDK binaries provided by Eclipse Temurin
openjdk-jre-bin Prebuilt Java JRE binaries provided by Eclipse Temurin
openjfx Java OpenJFX client application platform
opentest4j Open Test Alliance for the JVM
open-test-reporting-events Language-agnostic test reporting format and tooling
open-test-reporting-schema Language-agnostic test reporting format and tooling
osgi-annotation OSGi Annotation Release 8, Annotations for use in compiling bundles
osgi-cmpn OSGi Service Platform Compendium API (Companion Code)
osgi-compendium OSGi Service Platform Compendium API (Companion Code)
osgi-core OSGi Service Platform Core API (Companion Code)
osgi-core-api OSGi Service Platform Core API (Companion Code)
osgi-enterprise-api OSGi Enterprise Release 5 Companion Code
osgi-foundation OSGi R4 Foundation EE by Apache Felix
pdfbox Java library and utilities for working with PDF documents
picocli Java command line parser with both an annotations API and a programmatic API
plexus-classworlds The class loader framework of the Plexus project
poi Maven build of Apache POI for Sonar checks
protobuf-java Core Protocol Buffers library
qdox Parser for extracting class/interface/method definitions
randomized-runner JUnit test runner and plugins for running JUnit tests with pseudo-randomness
reflections Reflections - a Java runtime metadata analysis
relaxng-datatype Interface between RELAX NG validators and datatype libraries
reload4j Reload4j revives EOLed log4j 1.x
rhino An open-source implementation of JavaScript written in Java
rome Java framework for RSS and Atom feeds
rxtx Native library providing serial and parallel communication for Java
saslprep SASLprep: Stringprep Profile for User Names and Passwords
sax SAX: Simple API for XML in Java
saxon A XSLT and XQuery Processor
sbt sbt is a build tool for Scala and Java projects that aims to do the basics well
sbt-bin sbt, a build tool for Scala
scala-cli-bin CLI to interact with Scala and Java
scram Java Implementation of the Salted Challenge Response Authentication Mechanism
shrinkwrap-api Client View of the ShrinkWrap Project
shrinkwrap-impl-base Common Base for Implementations of the ShrinkWrap Project
shrinkwrap-spi Generic Service Provider Contract of the ShrinkWrap Project
sjsxp Sun Java Streaming XML Parser (SJSXP) is the implementation of JSR 173
slf4j-api The slf4j API
slf4j-ext Extensions to the SLF4J API
slf4j-nop SLF4J NOP Binding
slf4j-reload4j SLF4J Reload4j Binding
slf4j-simple SLF4J Simple binding
snakeyaml YAML 1.1 parser and emitter for Java
snappy Snappy compressor/decompressor for Java
sparsebitset An efficient sparse bitset implementation for Java
stax2-api stax2 API is an extension to basic Stax 1.0 API
stringprep SASLprep: Stringprep Profile for User Names and Passwords
stringtemplate A Java template engine
sun-jai-bin JAI is a class library for managing images
swing-layout Professional cross platform layouts with Swing
swingx A collection of powerful, useful, and just plain fun Swing components
swingx-beaninfo SwingX Beaninfo
swingx-ws Utilities and widgets to integrate Swing GUIs with web applications
swt GTK based SWT Library
system-rules A collection of JUnit rules for testing code which uses java.lang.System.
testng Testing framework inspired by JUnit and NUnit with new features
tomcat-native Allows Tomcat to use certain native resources for better performance
tomcat-servlet-api Tomcat's Servlet API 2.3/JSP API 1.2 implementation
treelayout Efficient and customizable TreeLayout Algorithm in Java.
txw2 TXW is a library that allows you to write XML documents
typesafe-config A library of arguably useful Java utilities
unbescape Advanced yet easy-to-use escape/unescape library for Java
univocity-parsers A collection of extremely fast and reliable parsers for Java
validation-api Bean Validation (JSR-303) API
velocity Apache Velocity is a general purpose template engine
woodstox-core An XML processor that implements Stax (JSR-173), SAX2 and Stax2 APIs
wsdl4j Web Services Description Language for Java Toolkit (WSDL4J)
xalan Transforming XML documents into HTML, text, or other XML document types
xalan-serializer Transforming XML documents into HTML, text, or other XML document types
xerces Xerces Java XML parser
xerial-core Core library of the Xerial project.
xml-commons-external Externally-defined set of standard interfaces, namely DOM, SAX, and JAXP
xml-commons-resolver An XML Entity and URI Resolver
xmlgraphics-commons XML Graphics Commons
xmlunit XMLUnit extends JUnit and NUnit to enable unit testing of XML
xmlunit-assertj XMLUnit with AssertJ fluent API
xmlunit-core XMLUnit for Java
xmlunit-matchers XMLUnit for Java Hamcrest Matchers
xmpbox An open source Java tool that implements Adobe's XMP(TM) specification
xom XML Object Model
xpp2 A streaming pull XML parser used to quickly process input elements
xpp3 An implementation of XMLPULL V1 API
xsdlib XML Schema datatypes library
xz-java Implementation of xz data compression in pure java
zstd-jni JNI bindings for Zstd native library
zxing-core Core barcode encoding/decoding library
zxing-javase Core barcode encoding/decoding library


Packages: 352

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