Question

从OSB项目中，我以BINDING MODE连接到IBM Websphere MQ。从业务服务异步发送消息到MQ队列工作正常，但我一直在获得NPE。有人可以告诉我我做错了什么:)我建议吗？我是OSB和MQ的新手。错误如下：

<AdminServer> <[ACTIVE] ExecuteThread: '23' for queue: 'weblogic.kernel.Default (self-tuning)'> 
<<WLS Kernel>> <> <d4c01266a9822b8f:-5e045fa4:154e15afad0:-8000-000000000000222d> <1464087403232> <BEA-000802> <ExecuteRequest failed
 java.lang.NullPointerException.
java.lang.NullPointerException
        at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:209)
        at java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:836)
        at com.bea.wli.sb.resources.mqconnection.MQConnectionFacade.getMQConnectionContext(MQConnectionFacade.java:70)
        at com.bea.wli.sb.transports.mq.MQTransportTimerListener.timerExpired(MQTransportTimerListener.java:222)
        at weblogic.timers.internal.TimerImpl.run(TimerImpl.java:284)
        at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:550)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:263)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

Answer 1

由于java.lang.NullPointerException对象已传递到null上的containsKey(Object)方法，因此引发了ConcurrentHashMap。请参阅Javadoc：

https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentHashMap.html#containsKey(java.lang.Object)

您需要弄清楚com.bea.wli.sb.resources.mqconnection.MQConnectionFacade.getMQConnectionContext(MQConnectionFacade.java:70)中的代码尝试使用null键查找对象的原因。如果这是代码属于Oracle，您可能需要聘请他们的支持团队。

从OSB {Ber}到Webshpere MQ连接期间发生NullPointerException

1 个答案: