docs: @Override
      public String getGatherMessages() {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "getGatherMessages");
  
          String gatherMessages = (String) properties.get(GATHER_MESSAGES);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "getGatherMessages");
          return gatherMessages;
      }