The test took longer than the 120s default of the jmx Arquillian runner. The interop tests can be quite intensive, running the same operation many times. It's possible that on slow machines that this would take longer than 120s.
It could also be caused by a legitimate bug, but it's hard to tell from the log as these tests produce a lot of expected exceptions as they also test correct behavior under erroneous conditions.
We should increase the test timeout to 5mins to resolve this issue. We can re-open if we see it happen again.