code: public DestinationChangeListener getDestinationChangeListener() {
          if (TraceComponent.isAnyTracingEnabled()
              && tc.isEntryEnabled()) {
              SibTr.entry(tc, "getDestinationChangeListener");
              SibTr.exit(tc, "getDestinationChangeListener",
                         _destinationChangeListener);
          }
          return _destinationChangeListener;
      }
docs: <p>
  Get the destination change listener that is registered with TRM for
  changes to the WLM destination groups
  </p>
  
  @return DestinationChangeListener