code: public static void checkTopicName( String topicName ) throws JMSException
      {
          if (topicName == null)
              throw new FFMQException("Topic name is not set","INVALID_DESTINATION_NAME");      
          if (topicName.length() > FFMQConstants.MAX_TOPIC_NAME_SIZE)
              throw new FFMQException("Topic name '"+topicName+"' is too long ("+topicName.length()+" > "+FFMQConstants.MAX_TOPIC_NAME_SIZE+")","INVALID_DESTINATION_NAME");
          checkDestinationName(topicName);
      }
docs: Check the validity of a topic name