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  1. JBoss Enterprise Application Platform
  2. JBEAP-3379

XNIO001007: A channel event listener threw an exception: java.lang.NullPointerException

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    • Bug
    • Resolution: Done
    • Blocker
    • 7.0.0.ER6
    • 7.0.0.ER5
    • JMS
    • None
    • Hide

      NPE was seen in the following test, not 100% reproducer:

      git clone git://git.app.eng.bos.redhat.com/jbossqe/eap-tests-hornetq.git
cd eap-tests-hornetq/scripts/
git checkout refactoring_modules
groovy -DEAP_VERSION=7.0.0.ER5 PrepareServers7.groovy
export WORKSPACE=$PWD
export JBOSS_HOME_1=$WORKSPACE/server1/jboss-eap
export JBOSS_HOME_2=$WORKSPACE/server2/jboss-eap
export JBOSS_HOME_3=$WORKSPACE/server3/jboss-eap
export JBOSS_HOME_4=$WORKSPACE/server4/jboss-eap
cd ../jboss-hornetq-testsuite/
mvn clean test -Dtest=ReplicatedDedicatedFailoverTestWithMdb#testKill  -DfailIfNoTests=false  -Deap=7x  | tee log
      Show
      NPE was seen in the following test, not 100% reproducer: git clone git: //git.app.eng.bos.redhat.com/jbossqe/eap-tests-hornetq.git cd eap-tests-hornetq/scripts/ git checkout refactoring_modules groovy -DEAP_VERSION=7.0.0.ER5 PrepareServers7.groovy export WORKSPACE=$PWD export JBOSS_HOME_1=$WORKSPACE/server1/jboss-eap export JBOSS_HOME_2=$WORKSPACE/server2/jboss-eap export JBOSS_HOME_3=$WORKSPACE/server3/jboss-eap export JBOSS_HOME_4=$WORKSPACE/server4/jboss-eap cd ../jboss-hornetq-testsuite/ mvn clean test -Dtest=ReplicatedDedicatedFailoverTestWithMdb#testKill -DfailIfNoTests= false -Deap=7x | tee log

    Description

      We hit NPE during failback in HA scenario with replicated journal in dedicated HA topology. Http connectors are used.

      Test scenario:
      Start 1st EAP 7 server with Artemis configured as live
      Start 2nd EAP 7 server with Artemis configured as backup
      Send 2000 messages to in InQueue to live
      Start 3rd EAP 7 server with RA configured to connecto to live and deploy MDB which receives messages from InQueue and sends a new message to OutQueue
      When MDB is processing messages then kill live server -> MDB failovers to backup
      After MDB processed all messages receive all messages from OutQueue

      NPE occurs when live is killed on backup server:

      02:48:36,503 ERROR [org.xnio.listener] (default I/O-2) XNIO001007: A channel event listener threw an exception: java.lang.NullPointerException
        at org.wildfly.extension.messaging.activemq.HTTPUpgradeService$2.handleEvent(HTTPUpgradeService.java:154)
        at org.wildfly.extension.messaging.activemq.HTTPUpgradeService$2.handleEvent(HTTPUpgradeService.java:146)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) [xnio-api-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at io.undertow.server.handlers.ChannelUpgradeHandler$1.handleUpgrade(ChannelUpgradeHandler.java:149)
        at io.undertow.server.protocol.http.HttpReadListener.exchangeComplete(HttpReadListener.java:362)
        at io.undertow.server.protocol.http.HttpServerConnection.exchangeComplete(HttpServerConnection.java:228)
        at io.undertow.server.HttpServerExchange.invokeExchangeCompleteListeners(HttpServerExchange.java:1226)
        at io.undertow.server.HttpServerExchange.terminateResponse(HttpServerExchange.java:1503)
        at io.undertow.server.Connectors.terminateResponse(Connectors.java:99)
        at io.undertow.server.protocol.http.HttpTransferEncoding$3.handleEvent(HttpTransferEncoding.java:197)
        at io.undertow.server.protocol.http.HttpTransferEncoding$3.handleEvent(HttpTransferEncoding.java:195)
        at io.undertow.conduits.HeadStreamSinkConduit.exitFlush(HeadStreamSinkConduit.java:178)
        at io.undertow.conduits.HeadStreamSinkConduit.flush(HeadStreamSinkConduit.java:122)
        at org.xnio.conduits.ConduitStreamSinkChannel.flush(ConduitStreamSinkChannel.java:162) [xnio-api-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at io.undertow.channels.DetachableStreamSinkChannel.flush(DetachableStreamSinkChannel.java:119)
        at io.undertow.server.HttpServerExchange.closeAndFlushResponse(HttpServerExchange.java:1652)
        at io.undertow.server.HttpServerExchange.endExchange(HttpServerExchange.java:1630)
        at io.undertow.server.handlers.ChannelUpgradeHandler.handleRequest(ChannelUpgradeHandler.java:152)
        at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
        at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:233)
        at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:131)
        at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:145)
        at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:92)
        at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:51)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) [xnio-api-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:291) [xnio-api-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286) [xnio-api-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) [xnio-api-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at org.xnio.nio.QueuedNioTcpServer$1.run(QueuedNioTcpServer.java:121) [xnio-nio-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:580) [xnio-nio-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:464) [xnio-nio-3.3.4.Final-redhat-1.jar:3.3.4.Final-redhat-1]

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          Bug - A problem that impairs or prevents the functions of the product. WFLY-6199 XNIO001007: A channel event listener threw an exception: java.lang.NullPointerException

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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              jmesnil1@redhat.com Jeff Mesnil
              mnovak1@redhat.com Miroslav Novak
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                Updated:
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