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Goals

  • Pass all appropriate certification tests for Java SE 7
  • Include a complete, native Cocoa-based UI Toolkit
    • DONE
  • Provide excellent performance
  • Integrate into main-line OpenJDK 8 
    • DONE. Mac OS X is now 'just another platform' in OpenJDK 8

Minimum requirements to run

Note that only Mac OS X 10.7.3 and higher will be an Oracle-supported platform. It should continue to run on 10.6.8 + Java for Mac OS X 10.6 Update 6 but that is not guaranteed. As of 1-Jan-2012 there are no plans to introduce 10.7-only APIs into the codebase.

Prerequisites to build

...

Note
titleXcode

If you install Xcode after installing the Apple provided Java for Mac OS X, you will have to re-install the same Java for Mac OS X or a later developer preview to correct headers in the JavaRuntimeSupport framework. This issue is expected to be resolved in a future release of Xcode.

As of Xcode version 4.3 you have to manually install the command line compilers and tools. Start Xcode, open Preferences, choose the Downloads tab, and then install "Command Line Tools".

1. Get the code

For JDK 7u

Code Block
hg clone http://hg.openjdk.java.net/jdk7u/jdk7u-dev
cd jdk7u-dev
chmod 755 get_source.sh
./get_source.sh

...

Code Block
hg clone http://hg.openjdk.java.net/jdk8/jdk8
cd jdk8
chmod 755 get_source.sh
./get_source.sh

2. Build

Set the LANG environment variable if it isn't set, then run make:

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* Steps for incremental building

3. Smoke Test

Code Block
build/macosx-universal/j2sdk-image/bin/java -version

4. Install

Code Block
mkdir -p ~/Library/Java/JavaVirtualMachines
cp -R build/macosx-universal/j2sdk-bundle/jdk1.7.0.jdk ~/Library/Java/JavaVirtualMachines

5. Run

Code Block
export JAVA_HOME=`/usr/libexec/java_home --version 1.7`
$JAVA_HOME/bin/java -version

...

Code Block
$JAVA_HOME/bin/java -jar /Developer/Extras/Java/JFC/SwingSet2/SwingSet2.jar

6. Test

Download jtreg to run the tests in the /jdk/test directory.

Bugs!

File new bugs at http://bugreport.sun.com/bugreport/. Please check out the bug reporting guidelines if you haven't filed against the project before.

Questions?

Please join the macosx-port-dev mailing list and ask!

See something wrong on this page? Fix it!

TL;DR

  1. Download an official or unofficial build
  2. If you have /Applications/Utilities/Java Preferences.app:
    1. Open it
    2. Drag both "OpenJDK 7" entries to the top of the list
  3. Run "java -version" in /Applications/Utilities/Terminal.app