[AMQ-5664] ConcurrentModificationException seen from client send of TextMessage

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 5.11.1
• Component/s: Broker, JMS client
• Assignee: Unassigned
• Reporter: Timothy A. Bish
• Created: 16/Mar/15 18:41
• Updated: 15/Jan/16 17:28
• Resolved: 15/Jan/16 17:28

Description

While running test against the new QPid AMQP JMS client we send some messages to a Queue via the OpenWire JMS client over a VM transport connection for later consumption by the AMQP JMS client. During a recent test run we caught this:

Tests run: 18, Failures: 0, Errors: 1, Skipped: 1, Time elapsed: 27.368 sec <<< FAILURE! - in org.apache.qpid.jms.consumer.JmsMessageConsumerTest
testSetMessageListenerAfterStartAndSend(org.apache.qpid.jms.consumer.JmsMessageConsumerTest)  Time elapsed: 0.596 sec  <<< ERROR!
javax.jms.JMSException: java.util.ConcurrentModificationException
        at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:54)
        at org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1420)
        at org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1346)
        at org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1904)
        at org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:288)
        at org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:223)
        at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:468)
        at org.apache.activemq.broker.jmx.ManagedRegionBroker.send(ManagedRegionBroker.java:297)
        at org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:96)
        at org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:307)
        at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:152)
        at org.apache.activemq.security.AuthorizationBroker.send(AuthorizationBroker.java:223)
        at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:152)
        at org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:157)
        at org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:541)
        at org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:768)
        at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:334)
        at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:188)
        at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
        at org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)
        at org.apache.activemq.transport.vm.VMTransport.iterate(VMTransport.java:248)
        at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
        at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.ConcurrentModificationException: null
        at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
        at java.util.HashMap$KeyIterator.next(HashMap.java:1453)
        at org.apache.activemq.util.MarshallingSupport.marshalPrimitiveMap(MarshallingSupport.java:61)
        at org.apache.activemq.command.Message.beforeMarshall(Message.java:231)
        at org.apache.activemq.command.ActiveMQTextMessage.beforeMarshall(ActiveMQTextMessage.java:115)
        at org.apache.activemq.openwire.v10.MessageMarshaller.looseMarshal(MessageMarshaller.java:281)
        at org.apache.activemq.openwire.v10.ActiveMQMessageMarshaller.looseMarshal(ActiveMQMessageMarshaller.java:111)
        at org.apache.activemq.openwire.v10.ActiveMQTextMessageMarshaller.looseMarshal(ActiveMQTextMessageMarshaller.java:111)
        at org.apache.activemq.openwire.OpenWireFormat.marshal(OpenWireFormat.java:155)
        at org.apache.activemq.store.kahadb.KahaDBStore$KahaDBMessageStore.addMessage(KahaDBStore.java:427)
        at org.apache.activemq.store.kahadb.KahaDBStore$StoreQueueTask.run(KahaDBStore.java:1296)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

Will need to dig in and see how this happened when we have a chance.

Issue Links

• is related to: QPIDJMS-129 occasional CME in broker during ActiveMQ interop tests