[xep-support] getting failed XEP build to make ant task fail

[Mark Giffin]

I'm using Apache Ant to run XEP like this:

     <exec dir="." executable="cmd.exe" failonerror="true">
       <arg line="/c xep -valid -fo output.fo -out output\reference.pdf"/>
     </exec>

Even though I use ant's @failonerror="true" attribute, the ant script 
does not fail when the XEP build fails. I get this error before XEP gets 
going, but ant still says the build was successful:

...
[exec] Error occurred during initialization of VM
[exec] Could not reserve enough space for object heap
[exec] Could not create the Java virtual machine.

BUILD SUCCESSFUL

I am running ant from inside the Jenkins CI tool. I would like it if XEP 
could return -1 or something to tell ant that it failed. Is this possible?

Thanks,
Mark

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