0 Replies Latest reply on Feb 26, 2013 1:39 PM by kripash12

    rich:collapsibleSubtable - toggleListener throws Null pointer

    kripash12 Newbie

      Hi Team,


      I was trying to use rich:collapsibleSubTable and I wanted to invoke an action  method on expand of the toggler. I have a mapped a action method to the toggleListener and its getting triggered but for some reason I get a Null pointer exception..


      Caused By: java.lang.NullPointerException

      at org.richfaces.taglib.MethodExpressionToggleListener.processCollapsibleSubTableToggle(MethodExpressionToggleListener.java:44)

      at org.richfaces.event.CollapsibleSubTableToggleEvent.processListener(CollapsibleSubTableToggleEvent.java:64)

      at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:778)

      at org.richfaces.component.UIDataAdaptor.broadcast(UIDataAdaptor.java:454)

      at org.richfaces.component.AbstractCollapsibleSubTable.broadcast(AbstractCollapsibleSubTable.java:95)


      I tried to debug and found the  "methodExpression" is bound as null with the Listener(faces event listener). I am not sure why this happens.. can you guys please help me out on this..

      Below is the code snippet..the action method receive "org.richfaces.event.CollapsibleSubTableToggleEvent" as the parameter.. but this method is never called as I get a NPE in methodExpression


        <rich:collapsibleSubTable  value="#{arraylist}" var="model" id="sbtbl"

      expandMode=""  expanded="#{false}" toggleListener="#{action.method}">