Issue

• when using transactions to commit batches of messages periodically the following exception appears in the broker log

javax.jms.JMSException: Unmatched acknowledge: MessageAck {commandId = 14, responseRequired = false, ackType = 2, consumerId = XXX, firstMessageId = XXX, lastMessageId = XXX, destination = queue://xxx, transactionId = XXX, messageCount = 20, poisonCause = null}; Could not find Message-ID XXX in dispatched-list (start of ack)
    at org.apache.activemq.broker.region.PrefetchSubscription.assertAckMatchesDispatched(PrefetchSubscription.java:480)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:212)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:412)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:466)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:87)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:87)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:277)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:87)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:97)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:550)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.command.MessageAck.visit(MessageAck.java:245)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:334)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:188)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.transport.AbstractInactivityMonitor.onCommand(AbstractInactivityMonitor.java:270)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.transport.TransportLogger.onCommand(TransportLogger.java:114)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:214)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:196)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611412]
    at java.lang.Thread.run(Thread.java:745)[:1.7.0_72]