code: public final int getExpandedTypeID2(int nodeHandle)
    {
      int nodeID = makeNodeIdentity(nodeHandle);
  
      //return (nodeID != NULL) ? _exptype2(nodeID) : NULL;
  
      if (nodeID != NULL) {
        if (nodeID < m_blocksize)
          return m_exptype_map0[nodeID];
        else
          return m_exptype_map[nodeID>>>m_SHIFT][nodeID&m_MASK];
      }
      else
        return NULL;
    }
docs: The optimized version of DTMDefaultBase.getExpandedTypeID(int).
  
  <p>This one is only used by DOMAdapter.getExpandedTypeID(int), which
  is mostly called from the compiled translets.