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  1. ActiveMQ Artemis
  2. ARTEMIS-1998

NPE in MQTTProtocolManager.isClientConnected

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: 2.4.0, 2.6.2
    • Fix Version/s: None
    • Component/s: MQTT
    • Labels:
      None

      Description

      I've encountered the following unhandled null pointer exception

      2018-05-24 07:02:52.632 WARN 5030 --- [mpl$5@7c3e4b1a)] o.a.a.a.utils.actors.OrderedExecutor : null java.lang.NullPointerException: null at org.apache.activemq.artemis.core.protocol.mqtt.MQTTProtocolManager.isClientConnected(MQTTProtocolManager.java:182) at org.apache.activemq.artemis.core.protocol.mqtt.MQTTConnectionManager.disconnect(MQTTConnectionManager.java:150) at org.apache.activemq.artemis.core.protocol.mqtt.MQTTFailureListener.connectionFailed(MQTTFailureListener.java:37) at org.apache.activemq.artemis.core.protocol.mqtt.MQTTConnection.fail(MQTTConnection.java:146) at org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl$FailureCheckAndFlushThread$2.run(RemotingServiceImpl.java:734) at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:42) at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:31) at org.apache.activemq.artemis.utils.actors.ProcessorBase$ExecutorTask.run(ProcessorBase.java:53) 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)
      

      Perhaps a null check should be added to the connectedClients.get(clientId).

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              • Assignee:
                Unassigned
                Reporter:
                assens Assen Sharlandjiev
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                • Created:
                  Updated:
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