Race discovered in SingleThreadedEventHandlingStrategyTest

I have run into a problem with the unit tests on my quad core haswell i7. It looks like a race condition.

Failed tests:
SingleThreadedEventHandlingStrategyTest.testDoubleStart:55->checkThreads:94 Exactly one 'QFJ Message Processor' thread expected expected:<1> but was:<2>

Tests run: 1294, Failures: 1, Errors: 0, Skipped: 0

I can fix the problem by adding this sleep on line 54 of SingleThreadedEventHandlingStrategyTest. However this is not the right solution but it works.

ehs.blockInThread();
Thread.sleep(200); //need delay
ehs.blockInThread();
checkThreads(bean);