docs: public Set getMessagingEngineSet(String busName) {
  
          String thisMethodName = CLASS_NAME + ".getMessagingEngineSet(String)";
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              SibTr.entry(tc, thisMethodName, busName);
          }
          Set retSet = new HashSet();
          if (meConfig != null) {
              String meName = meConfig.getMessagingEngine().getName();
              BaseMessagingEngineImpl engineImpl = getMessagingEngine(meName);
              retSet.add(engineImpl.getUuid().toString());
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              Integer i = new Integer(retSet.size());
              SibTr.exit(tc, thisMethodName, i.toString());
          }
  
          return retSet;
      }