Class Cast exception when trying to create a work item from

I'm using RTC-2.0.0.1 client, jbe, and server.

The stack trace in the Error view is:

java.lang.ClassCastException: $Proxy15 incompatible with
com.ibm.team.process.common.ITeamArea
at
com.ibm.team.build.internal.java.ui.workitems.CreateWorkItemFromJUnitTestAction.getProjectAreaHandle(CreateWorkItemFromJUnitTestAction.java:94)

at
com.ibm.team.build.internal.java.ui.workitems.CreateWorkItemFromJUnitTestAction$1.runProtected(CreateWorkItemFromJUnitTestAction.java:57)

at
com.ibm.team.foundation.client.util.FoundationJob.run(FoundationJob.java:68)

at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

This happens immediately after I select the "create work item" operation
for the junit error in the Junit Tests pane of the build result.

Note: If I just run the JUnit tests from within Eclipse, I can select
the Junit error in Eclipse, and the "create work item" operation works
fine ... so it is only when I select that operation in the build result
do I see this problem.

Any idea what might be happening? Or should I just file a defect ...

Cheers,
Geoff

FYI, I was able to eliminate this error, by changing the owner of the
build definition from the project area to a team area.