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This feature was delivered into JDK 7u4 which was released April 2012 and was subsequently dissolved February 2020. Discussion about ports may be found on porters-dev.

Setup these environment variables to do iterative development of a particular module, AWT for example (avoid having to build the whole JDK)

Code Block

export JDK7_BASE=<path to your local JDK7 copy>
export JDK7_BUILD=$JDK7_BASE/build
export ALT_BOOTDIROUTPUTDIR=$JDK7_BUILD/macosx-universal/j2sdk-image/
export ALT_JDK_IMPORT_PATH=$JDK7_BUILD/macosx-universalBOOTDIR=$ALT_OUTPUTDIR/j2sdk-image/1.7.0.jdk/Contents/Home/
export ALT_JDK_OUTPUTDIRIMPORT_PATH=$JDK7_BUILD/macosx-universal$ALT_BOOTDIR
cd $JDK7_BASE/jdk/make/sun/awt/
make

To run your changes, prepend the bootclasspath, and set DYLD_LIBRARY_PATH:

Code Block

export _JAVA_OPTIONS=-Xbootclasspath/p:$JDK7_BUILD/macosx-universal/classes/
export DYLD_LIBRARY_PATH=$JDK7_BUILD/macosx-universal/lib/
$JAVA_HOME/bin/java -jar /Developer/Extras/Java/JFC/SwingSet2/SwingSet2.jar

More helpful suggestions to decrease your build time:

...