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via Oracle Community by 3004, 1 year ago
java.lang.NullPointerException: fd object	at java.net.PlainDatagramSocketImpl.leave(Native Method)	at java.net.MulticastSocket.leaveGroup(MulticastSocket.java:250)	at weblogic.cluster.TDMSocketIPM.close(TDMSocketIPM.java:89)	at weblogic.cluster.ClusterManager.shutdown(ClusterManager.java:185)	at weblogic.cluster.ClusterMain.leaveCluster(ClusterMain.java:267)