The service has one CM which creates for every CAS one new CAS and a dummy AE which throws an exception on every second CAS.
It looks like that for each exception thrown from the AE.process method the stopping collocated delegate CM message is printed
>>> Instance Hashcode:28681226 Controller:TestAAE Stopping Collocated Delegate Cas Multiplier:TestCM
1/25/10 1:14:51 PM - 13: org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.stopCasMultiplier: INFO: Controller: TestAAE Stopping Collocated Delegate Cas Multiplier: TestAAE
The problem might relate to the hang issue reported here: