ANT JUnit Hanging

I created an ANT target to run some of our unit tests.

I can specify any individual test and they all run just fine. On the other hand, if I run all of the tests in this one directory, it hangs on this one test. If I manually specify all the tests individually, it hangs on the same test.

Eventually, it becomes necessary to do a Force Quit on the ant process.

There is no helpful output to explain the problem. Is ANT writing a log someplace where there might be a useful clue?

Is this a bug that I should report?

Thank you,

Donald