Hi, I've got a problem with Active MQ v 5.5.0. There seems to be a situation where after a send the session/connection waits for a response and waits forever. This is causing my app to hang because of locking further up the call stack. See the stack trace for the thread that is hung.
I believe I could put a timeout in the send, but I'd rather try to understand the problem, as I really need all messages to be sent successfully. If somebody could help explain what is happenning here I would greatly appreciate it. Thanks in advance, Kevin. Stack trace: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:156) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987) java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:317) org.apache.activemq.transport.FutureResponse.getResult(FutureResponse.java:40) org.apache.activemq.transport.ResponseCorrelator.request(ResponseCorrelator.java:87) org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1284) org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1760) - locked java.lang.Object@28c04b6b org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:231) org.apache.activemq.ActiveMQMessageProducerSupport.send(ActiveMQMessageProducerSupport.java:241) org.springframework.jms.core.JmsTemplate.doSend(JmsTemplate.java:592) org.springframework.jms.core.JmsTemplate.doSend(JmsTemplate.java:569) org.springframework.jms.core.JmsTemplate$3.doInJms(JmsTemplate.java:536) org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:466) org.springframework.jms.core.JmsTemplate.send(JmsTemplate.java:534) com.process.change.ChangeSetTransformer.sendDTOToClient(Unknown Source) com.process.change.ChangeSetTransformer.processChangeSetList(Unknown Source) sun.reflect.GeneratedMethodAccessor141.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.springframework.integration.util.DefaultMethodInvoker.invokeMethod(DefaultMethodInvoker.java:97) org.springframework.integration.handler.MessageMappingMethodInvoker.doInvokeMethod(MessageMappingMethodInvoker.java:135) org.springframework.integration.handler.MessageMappingMethodInvoker.invokeMethod(MessageMappingMethodInvoker.java:107) org.springframework.integration.handler.ServiceActivatingHandler.handleRequestMessage(ServiceActivatingHandler.java:49) org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:91) org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:59) org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:103) org.springframework.integration.dispatcher.UnicastingDispatcher.access$0(UnicastingDispatcher.java:93) org.springframework.integration.dispatcher.UnicastingDispatcher$1.run(UnicastingDispatcher.java:85) org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:49) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) java.lang.Thread.run(Thread.java:662)
