#645 testing project or individual test case causes crash

[Chelsea]

When I click "Test Project" in a project that has test cases, the following error pops up in a dialog box:

The slave JVM has thrown a Remote Exception probably indicating that it has been reset.
java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: java.io.EOFException

When I click OK, I get a busy cursor pointer and the main window freezes (I can interact with the menu, but can't do anything with the frame itself).

When testing a single file, I get the same freezing behavior but no dialog box.

I'm running Dr. Java on a MacBook Pro (Intel) with Leopard OSX.