Hi All:
      I encountered an error when i used JBoss' tree cache.
      There are two servers in the cluster.
      When a node  is started. the second node show following messages:
1    [MessageDispatcher up processing thread] ERROR org.jboss.cache.TreeCache  -
 failed setting transient state

java.lang.NullPointerException
  |         at org.jboss.cache.eviction.LRUPolicy.nodeAdded(LRUPolicy.java:53)
  |         at org.jboss.cache.eviction.LRUPolicy.nodeCreated(LRUPolicy.java:92)
  |         at org.jboss.cache.TreeCache.notifyNodeCreated(TreeCache.java:3449)
  |         at org.jboss.cache.TreeCache.notifyAllNodesCreated(TreeCache.java:3501)
  |         at org.jboss.cache.TreeCache$MessageListenerAdaptor._setState(TreeCache.
  | java:3012)
  |         at org.jboss.cache.TreeCache$MessageListenerAdaptor.setState(TreeCache.j
  | ava:2954)
  |         at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.passUp(MessageDi
  | spatcher.java:613)
  |         at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:3
  | 31)
  |         at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.handleUp(Message
  | Dispatcher.java:720)
  |         at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.access$300(Messa
  | geDispatcher.java:553)
  |         at org.jgroups.blocks.MessageDispatcher$1.run(MessageDispatcher.java:689
  | )
  |         at java.lang.Thread.run(Thread.java:534)

What's wrong with jboss cache? or There are some wrong with my configurations?




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