> export ANT_OPTS='-Xmx1g -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m 
> -Djava.awt.headless=true'

Or if you mean to just increase the heap of test JVMs then do:

ant (blahblah) -Dtests.heapsize=1g

or something. This is specified in common-build.xml around here:

        <junit4:junit4
            dir="@{tempDir}"
            tempdir="@{tempDir}"
            maxmemory="${tests.heapsize}"

You can also pass arbitrary commands to forked JVMs using -Dargs=...
because of this line:

        <jvmarg line="${args}"/>

So -Dargs="-Xmx1g" should give you the same effect.

Dawid

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