docs: public void unlockSet(SIMessageHandle[] msgHandles)
              throws SISessionUnavailableException, SISessionDroppedException,
              SIConnectionUnavailableException, SIConnectionDroppedException,
              SIResourceException, SIConnectionLostException,
              SIIncorrectCallException, SIMessageNotLockedException {
  
          throw new SibRaNotSupportedException(NLS
                  .getString("ASYNCHRONOUS_METHOD_CWSIV0250"));
  
      }