Welcome to Apache Harmony - Open Source Java SE

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Welcome to Apache Harmony - Open Source Java SE.

Apache Harmony is the Java SE project of the Apache Software Foundation. Please help us make this a world class, certified implementation of the Java Platform Standard Edition!

The aim of the project is to produce a large and healthy community of those interested in runtime platforms tasked with creation of:

We aim to support wide range of different platforms. The main criteria for whether a particular platform is supported or not is the involvement of people in running tests on regular basis, reporting build status, finding and fixing bugs for that platform, and so on. We have a list of platforms we are actively maintaining at the moment.

Please see the following "Getting Started" guides:

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Harmony News

Apache Harmony 5.0 M10 declared!
The Apache Harmony development team are pleased to announce that Apache Harmony 5.0M10 is available for immediate download from the project website.

Apache Harmony 5.0M10 is the latest stable build containing over 50 bug fixes plus notable improvements to the JavaDoc comments in a number of modules.

As usual, source code and binary builds and Debian packages are available from our download site. Please send any feedback on these builds to the Harmony mailing list. (2009-06-13)

Apache Harmony 5.0 M9 available for download!
The Apache Harmony team are pleased to announce the immediate availability of Apache Harmony 5.0M9.

Apache Harmony 5.0M9 is the latest stable build containing numerous bug fixes and enhancements including:

  • performance: across multiple areas, including class library improvements and JIT compiler global propagation optimizations, integer MUL/DIV/REM strength reduction, and so on.
  • pack200: a new implementation of the JSR-200 compression technology for Java bytecodes.
  • porting work: in the class libraries for AIX and zOS operating systems.
  • bug fixing: focus on our test case enhancements, and on passing the Eclipse Test Suite.

Source code and binary builds are available from the project download site. Please send feedback to the Harmony mailing list. (2009-04-15)

Apache Harmony 5.0 M8 now available
The Apache Harmony team are pleased to announce the immediate availability of Apache Harmony 5.0M8.

Apache Harmony 5.0M8 is the latest stable build containing numerous bug fixes, and enhancements to the policytool and pack200 support.

Source code and binary builds are available from the project download site. Please send feedback to the Harmony mailing list. (2008-11-20)

Apache Harmony 5.0 M7 is available!
The Apache Harmony team are pleased to announce the immediate availability of Apache Harmony 5.0M7. This is the latest stable build of the Harmony project with numerous enhancements and bug fixes including:
  • new performance improvements, especially in object serialization and unpack200 decoding
  • a new 'javap' the class file disassembler tool, and alpha version of 'policytool' the security policy management tool
  • bug fixes and functional enhancements throughout the class libraries, especially in the Swing widget toolkit
  • ...and many more

We would particularly like to thank our Google Summer of Code students András Belicza (policytool) and Tharindu Mathew (Swing enhancements), and welcome them to the project!

The build has been replicated to the download sites, and we recommend that everyone update their current version to Apache Harmony 5.0M7.

The build is available for download. Please send your feedback to the Harmony mailing list. (2008-08-28)

Archived articles are here.

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Project Status

How are we doing? We're making steady progress:

  1. JRE and HDK snapshots available
  2. Up-to-date code integrity status is tracked automatically on all supported platforms
  3. JRE can run popular programs like Apache Tomcat, Eclipse, Maven, Derby, Ant
  4. More than 99% of Java 5 API complete. (not compatible, just completed)
  5. More than 1.25 Million Lines of Code

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