code: public final void setGuaranteedSourceMessagingEngineUUID(SIBUuid8 value) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "setGuaranteedSourceMessagingEngineUUID", value);
          if (value != null)
              getHdr2().setField(JsHdr2Access.GUARANTEED_SET_SOURCEMEUUID, value.toByteArray());
          else
              getHdr2().setField(JsHdr2Access.GUARANTEED_SET_SOURCEMEUUID, null);
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "setGuaranteedSourceMessagingEngineUUID");
      }
docs: /*
  Set the source Messaging Engine that originated the message.
  
  Javadoc description supplied by CommonMessageHeaders interface.