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From "Peter Reilly" <peter.kitt.rei...@gmail.com>
Subject Re: How to dump heap on OutOfMemoryError from ant
Date Thu, 19 Oct 2006 07:47:21 GMT
On 10/18/06, Steve Loughran <stevel@apache.org> wrote:
> Milan Kubec wrote:
> > Hello,
> > I want ant to generate heap dump when OutOfMemoryError happens during
> > the build to find the problem in the task. I tried adding following
> > switches to .antrc file: -XX:+HeapDumpOnOutOfMemoryError
> > -XX:HeapDumpPath=e:\ant.hprof
> > But it doesn't seem to get to the correct process, in other words -
> > nothing happens. Is there some other way to generate heap dump from ant.
> > I'm using Ant 1.6.5 on JDK 1.5.0_09.
> >
>
> If the problem is in Ant's own process, set the ANT_OPTS env variable to
> the options.

export ANT_OPTS="-XX:+HeapDumpOnOutOfMemoryError"
on unix or cygwin
set ANT_OPTS="-XX:+HeapDumpOnOutOfMemoryError"
on windows.

Peter
>
> If it is in some forked java process (like javac), you need to set the
> options inside ant by whatever element the task offers to set JVM
> options, usually <jvmargs>
>
>
>
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