code: public String[] getTopics()
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "getTopics");
        
      String[] topics = null;
      if (_subscriptionState != null)      
        topics = _subscriptionState.getTopics();
        
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())  
        SibTr.exit(tc, "getTopics", topics);
      return topics;
    }
docs: Get the set of topics associated with this OutputHandler