I've recently updated to JSFUnit Beta 3 and now when I run my tests from an Ant build file i get the following error:

junit.framework.AssertionFailedError: Forked Java VM exited abnormally. Please note the time in the report does not reflect the time until the VM exit.

I run my tests using the batchtest task with fork="yes". When I set fork to no everything works fine. Does anybody know why this error occurs and how it can be fixed?

Thanks,
Peter