on Windows x86

Customer reports a hang in his applcation. No hang through jdk5 update 21 but starting jdk5 update 22 it is reproducible always.
Also reproducible with jdk6 update 21.

A couple of jstack traces are in the attachment.

Later the customer provided a testcase.

Also ovserved on Linux.

I could also reproduce the hang on windows with 7b96.