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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /><meta name="verify-v1" content="AiafH14hbeXW2GCfyr7P/GoAUaMrqtakSyiZ0HBrGbo=" /><title>OpenJDK</title><link rel="shortcut icon" href="./images/nanoduke.ico" /><link rel="stylesheet" type="text/css" href="./page.css" /><script type="text/javascript" src="./page.js"><noscript></noscript></script><script src="https://cdn.usefathom.com/script.js" data-site="KCYJJPZX" defer="yes"></script><style type="text/css"> /**/ #openjdk-sidebar-logo IMG { display: none; } TABLE.main { border-collapse: collapse; margin-top: 1.5ex; margin-right: 5em; } .main TD { padding-top: 4.5ex; padding-left: 2em; vertical-align: top; } .main TD:first-child + TD { padding-top: 5ex; } #announcements, #blogs { margin-right: 3em; } #announcements { padding-top: 10ex; } #blogs { padding-top: 6ex; } .head .leader { height: 1px; background: black; } .head .text { position: relative; top: -1.3ex; margin-bottom: -1.3ex; } .head .text SPAN { background: white; } .head .text .title { font-weight: bold; padding-right: 1em; } .head .note { float: right; background: white; padding: 0pt 1em; margin-right: 2em; } TABLE.ann { border-collapse: collapse; margin-top: 1ex; } .ann TD { vertical-align: top; } .ann TD:first-child { padding-right: 1em; } .ann .author { display: none; white-space: nowrap; } .feedburnerFeedBlock { font-size: 9pt; line-height: 12pt; } .feedburnerFeedBlock #creditfooter { display: none; } .feedburnerFeedBlock .headline { display: inline; font-weight: bold; } .feedburnerFeedBlock .headline:after, .feedburnerFeedBlock .date:before { content: "\A0\2015\A0"; } .feedburnerFeedBlock .date { display: inline; } .feedburnerFeedBlock P { margin: 0pt; } .feedburnerFeedBlock UL { list-style-type: none; padding-left: 0pt; } .feedburnerFeedBlock LI { display: block; margin: 1.5ex 0pt; } .feedburnerFeedBlock LI DIV { display: inline; } .feedburnerFeedBlock LI DIV P { display: inline; } .feedburnerFeedBlock B { font-weight: normal; } DIV.news-flash { margin: 5.5ex 3em 3ex 2em; } .news-flash TABLE { border-collapse: collapse; border: 2px solid #e76f00; } .news-flash TABLE TD { font-size: 11pt; padding: 1.5ex 1em; vertical-align: middle; } .news-flash TABLE TD:first-child { padding-right: 2em; } .hide { display: none; } /* IMG.openjdk-logo { margin-left: 2em; } */ .openjdk-logo-addon { float: right; margin-right: 5em; padding-top: 25px; margin-top: 1em; margin-bottom: 1em; text-align: center; } .openjdk-logo-addon P { font-size: small; padding: 0pt; margin: 0pt; } .openjdk-logo-addon P:first-child { margin-top: -2em; } .openjdk-logo-addon IMG { margin-top: .8ex; margin-bottom: .3ex; } .openjdk-logo-addon A { color: #437291; } .openjdk-logo-addon { display: none; } TABLE.main { clear: both; } TABLE.main P { margin: 0; } TABLE.main P + P { text-indent: 2em; } /**/ </style><link href="https://mastodon.social/@openjdk" rel="me" /></head><body><div id="main"> <div><img class="openjdk-logo" src="images/openjdk.png" alt="OpenJDK logo" /></div> <table class="main" summary="main"> <tr> <td><img src="images/duke-thinking.png" alt="Duke thinking" /></td> <td><b>What is this?</b> The place to collaborate on an open-source implementation of the <a href="https://www.oracle.com/technetwork/java/javase/overview/index.html"> Java Platform, Standard Edition</a>, and related projects.</td> </tr> <tr> <td><img src="images/duke-plug.png" alt="Duke plugging" /></td> <td><b>Download</b> and install the <a href="projects/jdk/23">latest open-source JDK</a>. Oracle’s free, GPL-licensed, production-ready OpenJDK JDK 23 binaries for Linux, macOS, and Windows are available at <a href="https://jdk.java.net/23"><b>jdk.java.net/23</b></a>; Oracle’s commercially-licensed JDK 23 binaries, based on the same code, are <a href="https://www.oracle.com/java/technologies/downloads/">here</a>.</td> </tr> <tr> <td><img src="images/duke-chalkboard.png" alt="Duke chalkboard" /></td> <td> <p><b>Learn</b> about the key active Projects in the Community including <a href="projects/amber">Amber</a> (high-productivity language features), <a href="https://wiki.openjdk.org/display/loom/Main">Loom</a> (lightweight concurrency), <a href="projects/panama">Panama</a> (foreign functions and foreign data), <a href="https://wiki.openjdk.org/display/valhalla/Main">Valhalla</a> (primitive types and specialized generics), and, of course, <a href="projects/jdk/23">the next version of Java and the JDK</a>.</p> <p>If you want to learn how to use Java features that are available today, head over to <a href="https://dev.java"><b>dev.java</b></a>.</p> </td> </tr> <tr> <td><img src="images/duke-pipes.png" alt="Duke hacking" /></td> <td><b>Hack</b> on the JDK itself, right here in the OpenJDK Community: <a href="https://github.com/openjdk/jdk">Browse the code</a> on the web, <a href="/guide/#cloning-the-jdk">clone a repository</a> to make a local copy, and <a href="/contribute/">contribute a patch</a> to fix a bug, enhance an existing component, or define a new feature.</td> </tr> </table> </div><div id="sidebar"><div id="openjdk-sidebar-logo"><a href="/"><img alt="OpenJDK logo" src="./images/openjdk-small.png" /></a></div><div class="links"><div class="link"><a href="/install/">Installing</a></div><div class="link"><a href="/guide/#contributing-to-an-openjdk-project">Contributing</a></div><div class="link"><a href="/guide/#reviewing-and-sponsoring-a-change">Sponsoring</a></div><div class="link"><a href="/guide/">Developers' Guide</a></div><div class="link"><a href="/groups/vulnerability/report">Vulnerabilities</a></div><div class="link"><a href="https://jdk.java.net">JDK GA/EA Builds</a></div></div><div class="links"><div class="links"><a href="https://mail.openjdk.org">Mailing lists</a></div><div class="link"><a href="https://wiki.openjdk.org">Wiki</a> · <a href="/irc">IRC</a></div></div><div class="links"><div class="links"><a href="/bylaws">Bylaws</a> · <a href="/census">Census</a></div><div class="link"><a href="/legal/">Legal</a></div></div><div class="links"><div class="links"><a href="/workshop"><b>Workshop</b></a></div></div><div class="links"><div class="links"><a href="/jeps/0"><b>JEP Process</b></a></div></div><div class="links"><div class="about">Source code</div><div class="link"><a href="https://github.com/openjdk/">GitHub</a></div><div class="link"><a href="https://hg.openjdk.org">Mercurial</a></div></div><div class="links"><div class="about">Tools</div><div class="link"><a href="http://git-scm.org/">Git</a></div><div class="link"><a href="/jtreg/">jtreg harness</a></div></div><div class="links"><div class="about">Groups</div><div class="link"><a href="/groups/">(overview)</a></div><div class="link"><a href="/groups/adoption">Adoption</a></div><div class="link"><a href="/groups/build">Build</a></div><div class="link"><a href="/groups/client-libs">Client Libraries</a></div><div class="link"><a href="/groups/csr">Compatibility & Specification Review</a></div><div class="link"><a href="/groups/compiler">Compiler</a></div><div class="link"><a href="/groups/conformance">Conformance</a></div><div class="link"><a href="/groups/core-libs">Core Libraries</a></div><div class="link"><a href="/groups/gb">Governing Board</a></div><div class="link"><a href="/groups/hotspot">HotSpot</a></div><div class="link"><a href="/groups/ide-support">IDE Tooling & Support</a></div><div class="link"><a href="/groups/i18n">Internationalization</a></div><div class="link"><a href="/groups/jmx">JMX</a></div><div class="link"><a href="/groups/members">Members</a></div><div class="link"><a href="/groups/net">Networking</a></div><div class="link"><a href="/groups/porters">Porters</a></div><div class="link"><a href="/groups/quality">Quality</a></div><div class="link"><a href="/groups/security">Security</a></div><div class="link"><a href="/groups/serviceability">Serviceability</a></div><div class="link"><a href="/groups/vulnerability">Vulnerability</a></div><div class="link"><a href="/groups/web">Web</a></div></div><div class="links"><div class="about">Projects</div><div class="link">(<a href="/projects/">overview</a>, <a href="/projects/archive">archive</a>)</div><div class="link"><a href="/projects/amber">Amber</a></div><div class="link"><a href="/projects/babylon">Babylon</a></div><div class="link"><a href="/projects/crac">CRaC</a></div><div class="link"><a href="/projects/code-tools">Code Tools</a></div><div class="link"><a href="/projects/coin">Coin</a></div><div class="link"><a href="/projects/cvmi">Common VM Interface</a></div><div class="link"><a href="/projects/guide">Developers' Guide</a></div><div class="link"><a href="/projects/dio">Device I/O</a></div><div class="link"><a href="/projects/duke">Duke</a></div><div class="link"><a href="/projects/galahad">Galahad</a></div><div class="link"><a href="/projects/graal">Graal</a></div><div class="link"><a href="/projects/icedtea">IcedTea</a></div><div class="link"><a href="/projects/jdk7">JDK 7</a></div><div class="link"><a href="/projects/jdk8">JDK 8</a></div><div class="link"><a href="/projects/jdk8u">JDK 8 Updates</a></div><div class="link"><a href="/projects/jdk9">JDK 9</a></div><div class="link"><a href="/projects/jdk">JDK</a> (…, <a href="/projects/jdk/22">22</a>, <a href="/projects/jdk/23">23</a>, <a href="/projects/jdk/24">24</a>)</div><div class="link"><a href="/projects/jdk-updates">JDK Updates</a></div><div class="link"><a href="/projects/jigsaw">Jigsaw</a></div><div class="link"><a href="/projects/kona">Kona</a></div><div class="link"><a href="/projects/kulla">Kulla</a></div><div class="link"><a href="/projects/lanai">Lanai</a></div><div class="link"><a href="/projects/leyden">Leyden</a></div><div class="link"><a href="/projects/lilliput">Lilliput</a></div><div class="link"><a href="/projects/locale-enhancement">Locale Enhancement</a></div><div class="link"><a href="/projects/loom">Loom</a></div><div class="link"><a href="/projects/jmm">Memory Model Update</a></div><div class="link"><a href="/projects/metropolis">Metropolis</a></div><div class="link"><a href="/projects/jmc">Mission Control</a></div><div class="link"><a href="/projects/mlvm">Multi-Language VM</a></div><div class="link"><a href="/projects/nashorn">Nashorn</a></div><div class="link"><a href="/projects/nio">New I/O</a></div><div class="link"><a href="/projects/openjfx">OpenJFX</a></div><div class="link"><a href="/projects/panama">Panama</a></div><div class="link"><a href="/projects/penrose">Penrose</a></div><div class="link"><a href="/projects/aarch32-port">Port: AArch32</a></div><div class="link"><a href="/projects/aarch64-port">Port: AArch64</a></div><div class="link"><a href="/projects/bsd-port">Port: BSD</a></div><div class="link"><a href="/projects/haiku-port">Port: Haiku</a></div><div class="link"><a href="/projects/macosx-port">Port: Mac OS X</a></div><div class="link"><a href="/projects/mips-port">Port: MIPS</a></div><div class="link"><a href="/projects/mobile">Port: Mobile</a></div><div class="link"><a href="/projects/ppc-aix-port">Port: PowerPC/AIX</a></div><div class="link"><a href="/projects/riscv-port">Port: RISC-V</a></div><div class="link"><a href="/projects/s390x-port">Port: s390x</a></div><div class="link"><a href="/projects/sctp">SCTP</a></div><div class="link"><a href="/projects/shenandoah">Shenandoah</a></div><div class="link"><a href="/projects/skara">Skara</a></div><div class="link"><a href="/projects/sumatra">Sumatra</a></div><div class="link"><a href="/projects/tsan">Tsan</a></div><div 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