java.lang.NullPointerException: fd object

Oracle Community | 3004 | 2 decades ago
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    EJB , cluster and automatic failover

    Oracle Community | 2 decades ago | 3004
    java.lang.NullPointerException: fd object
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    Google Groups | 2 decades ago | John Tyree
    java.lang.NullPointerException: fd object
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    Initialize the variable before calling a method on it.
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    Root Cause Analysis

    1. java.lang.NullPointerException

      fd object

      at java.net.PlainDatagramSocketImpl.leave()
    2. Java RT
      MulticastSocket.leaveGroup
      1. java.net.PlainDatagramSocketImpl.leave(Native Method)
      2. java.net.MulticastSocket.leaveGroup(MulticastSocket.java:250)
      2 frames
    3. weblogic.cluster
      ClusterMain.leaveCluster
      1. weblogic.cluster.TDMSocketIPM.close(TDMSocketIPM.java:89)
      2. weblogic.cluster.ClusterManager.shutdown(ClusterManager.java:185)
      3. weblogic.cluster.ClusterMain.leaveCluster(ClusterMain.java:267)
      3 frames