Eclipse "Waiting for virtual machine to exit"

Programmer Question

I'm working on a blackberry project using eclipse and bb-ant tools. I've created a build.xml file to perform the build. Everytime I try to run an Ant build, eclipse pops up the progress dialog and it hangs stating "Waiting for virtual machine to exit."

I downloaded an open source Blackberry project that has an ant build and it is showing the same behavior.

Does anyone have any suggestions?

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