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From Franco Ng <franco...@ebshk.com>
Subject NullPointerException in BaseDataStreamMarshaller.class
Date Thu, 30 May 2019 00:40:42 GMT
I found NullPointerException in activemq.log as below but don't know any 
impact on ActiveMQ and what root cause.  Please help. 


2019-05-28 12:42:47,376 | ERROR | Error in thread 'ActiveMQ 
BrokerService[AdsrOrderBroker01] Task-4169' | 
org.apache.activemq.thread.TaskRunnerFactory | ActiveMQ 
BrokerService[AdsrOrderBroker01] Task-4169 
java.lang.NullPointerException 
        at 
org.apache.activemq.openwire.v12.BaseDataStreamMarshaller.tightMarshalCachedObject2(BaseDataStreamMarshaller.java:177)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.openwire.v12.MessageMarshaller.tightMarshal2(MessageMarshaller.java:172)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.openwire.v12.ActiveMQMessageMarshaller.tightMarshal2(ActiveMQMessageMarshaller.java:89)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.openwire.v12.ActiveMQObjectMessageMarshaller.tightMarshal2(ActiveMQObjectMessageMarshaller.java:89)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.openwire.OpenWireFormat.tightMarshalNestedObject2(OpenWireFormat.java:427)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.openwire.v12.BaseDataStreamMarshaller.tightMarshalNestedObject2(BaseDataStreamMarshaller.java:135)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.openwire.v12.MessageDispatchMarshaller.tightMarshal2(MessageDispatchMarshaller.java:105)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.openwire.OpenWireFormat.marshal(OpenWireFormat.java:235)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.transport.tcp.TcpTransport.oneway(TcpTransport.java:193)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.transport.AbstractInactivityMonitor.doOnewaySend(AbstractInactivityMonitor.java:335)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.transport.AbstractInactivityMonitor.oneway(AbstractInactivityMonitor.java:317)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.transport.TransportFilter.oneway(TransportFilter.java:94)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.transport.WireFormatNegotiator.oneway(WireFormatNegotiator.java:116)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:68)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1486)[activemq-broker-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:971)[activemq-broker-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.broker.TransportConnection.iterate(TransportConnection.java:1021)[activemq-broker-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)[activemq-client-5.15.8.jar:5.15.8]

        at 
org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)[activemq-client-5.15.8.jar:5.15.8]

        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)[:1.8.0_192]

        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)[:1.8.0_192]

        at java.lang.Thread.run(Thread.java:748)[:1.8.0_192] 



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