code: public boolean contains(Token token,
                              Transaction transaction)
                      throws ObjectManagerException
      {
          try {
              for (Iterator iterator = iterator(); iterator.next(transaction) != token;);
              return true;
          } catch (java.util.NoSuchElementException exception) {
              // No FFDC code needed.
              return false;
          } // try.   
      }
docs: /*
  (non-Javadoc)
  
  @see com.ibm.ws.objectManager.Collection#contains(com.ibm.ws.objectManager.Token, com.ibm.ws.objectManager.Transaction)