0 Replies Latest reply on May 4, 2007 6:43 PM by Manjunath Kaliyur

    Nullpointer Exception in richDataTable saveState

    Manjunath Kaliyur Newbie

      Hi,

      I'm generating a rich:DataTable with binding to backend bean - backend bean creates a list of rich:columns and adds to the dataTable.

      Table is working fine for me, but after a few minutes I see this error in logs - apparantly a nullpointer exception while saving state of the dataTable - doesnt affect displaying or even refresh of the dataTable.

      What should I do to eliminate the root cause of this NPE?
      A part of the relevant log....

      HashMap.java:985)
       ... 30 more
      Caused by: java.lang.reflect.InvocationTargetException
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.serial.persister.RegularObjectPersister.writeSlotWithMethod(RegularObjectPersister.java:120)
       ... 47 more
      Caused by: java.lang.NullPointerException
       at javax.faces.component.UIComponentBase.saveAttachedState(UIComponentBase.java:1339)
       at javax.faces.component.UIComponentBase.saveBindingsState(UIComponentBase.java:1447)
       at javax.faces.component.UIComponentBase.saveState(UIComponentBase.java:1238)
       at javax.faces.component.UIData.saveState(UIData.java:530)
       at org.ajax4jsf.ajax.repeat.UIDataAdaptor.saveState(UIDataAdaptor.java:1243)
      at org.richfaces.component.html.HtmlDataTable.saveState(HtmlDataTable.java:1094)
       at javax.faces.component.UIComponentBase$AttributesMap.writeObject(UIComponentBase.java:1760)
      



      Thanks!!

      M