CellTree with Generics

Hi ,

What can be the possible replacement for the instanceof check made while developing a cell tree, currently we are facing an issue because of it as we are using generics, i.e something like

        public class GWTree<M> extends CellTree
          {
                ///////// .................
               //////////////,,,,,,,,,,,
               if(value instanceof M) // which can never be done
                  {
                    do Something
                  }


   How can we resolve this ?? Generics has to be implemented.


Thanks in Advance

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