JUnit-based concurrency tests

[Rick Hillegas]

I would like to write a JUnit test which creates N threads (connections) 
and has all of them run the same test case simultaneously. I see that 
there is related machinery (JDBCPerfTestCase) which runs M iterations of 
the same test case. Before I re-invent the wheel, I wanted to see 
whether there is already a base class for what I want to do.

Thanks,
-Rick