code: @Override
    public void unlockAll(boolean incrementUnlockCount)
        throws SISessionUnavailableException, SISessionDroppedException,
        SIConnectionUnavailableException, SIConnectionDroppedException,
        SIResourceException, SIConnectionLostException, SIIncorrectCallException
    {
      throw new SibRaNotSupportedException(NLS
          .getString("ASYNCHRONOUS_METHOD_CWSIV0250"));
      
    }
docs: Unlocking of messages is not supported.
  
  @throws SibRaNotSupportedException
  always