code: public void remove(Object pKey)
      {
          Identity id;
          if(pKey instanceof Identity)
          {
              id = (Identity) pKey;
          }
          else
          {
              id = transaction.getBroker().serviceIdentity().buildIdentity(pKey);
          }
          mhtObjectEnvelopes.remove(id);
          mvOrderOfIds.remove(id);
      }
docs: remove an objects entry from the object registry