return (Address)nodeIdAddressMap.get(nodeId);
return (Address)nodeIdAddressMap.get(new Integer(nodeId));
   public Address getAddressForNodeId(String nodeId) throws Exception   {      lock.readLock().acquire();            try      {         return (Address)nodeIdAddressMap.get(nodeId);      }      finally      {         lock.readLock().release();            }   }