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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

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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.

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• Hardware: Any 64-bit capable Intel Mac
  • RAM: 4GB
• Minimum OS version: Mac OS X 10.7.3 Lion
• Xcode : 4.1 or later from the Mac App Store (free download)Command Line Tools

• Mercurial: http://mercurial.berkwood.com/

• X11
  • On OS X 10.8 Mountain Lion: XQuartz
  • On OS X 10.7 Lion: Run /Applications/Utilities/X11.app to install as an additional download
  • On OS X Mountain Lion: XQuartz

JTReg is not required to build but useful for running regression tests

• Jtreg: http://openjdk.java.net/jtreg/

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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.

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1. Get the code

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

For JDK 8

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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Code Block
title Java 7 or higher installed
CPATH="/usr/X11/include" LANG=C make ALLOW_DOWNLOADS=true ALT_BOOTDIR=`/usr/libexec/java_home -v 1.7+` HOTSPOT_BUILD_JOBS=`sysctl -n hw.ncpu`

Code Block
title Using Apple's Java 6
CPATH="/usr/X11/include" LANG=C make ALLOW_DOWNLOADS=true SA_APPLE_BOOT_JAVA=true ALWAYS_PASS_TEST_GAMMA=true ALT_BOOTDIR=`/usr/libexec/java_home -v 1.6` HOTSPOT_BUILD_JOBS=`sysctl -n hw.ncpu`

If you are building on Mountain Lion you must also define the path to the X11 includes:

Code Block
export CPATH="/usr/X11/include"

* Steps for incremental building

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Code Block
mkdir -p ~/Library/Java/JavaVirtualMachines cp -R build/macosx-universal/j2sdk-bundle/jdk1.78.0.jdk ~jdk ~/Library/Java/JavaVirtualMachines

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Code Block
export JAVA_HOME=`/usr/libexec/java_home home --version 1.7`7+` $JAVA_HOME/bin/java -version

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Code Block
$JAVA_HOME/bin/java -jar /Library/Java/Demos/JFC/SwingSet2/SwingSet2.jar

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$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.

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• Join the web-discuss@openjdk.java.net mailing list
• Send an e-mail to the web-discuss@openjdk.java.net mailing list:
  • Request editor rights to the "OpenJDK Mac OS X Port" wiki
  • Include your Oracle SSO Username

TL;DR

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1. Open it
2. Drag both "OpenJDK 7" entries to the top of the list

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