docs: @Override
      public SourceProtocolItemStream getSourceProtocolItemStream()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(tc, "getSourceProtocolItemStream");
  
          SourceProtocolItemStream sourceProtocolItemStream =
                          _protoRealization.
                                          getRemoteSupport().
                                          getSourceProtocolItemStream();
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "getSourceProtocolItemStream", sourceProtocolItemStream);
  
          return sourceProtocolItemStream;
      }