code: public static synchronized StopRecognition putIfAbsent(String key, String path, StopRecognition stopRecognition) {
          KV<String, StopRecognition> kv = STOP.get(key);
          if (kv != null && kv.getV() != null) {
              return kv.getV();
          }
          put(key, path, stopRecognition);
          return stopRecognition;
      }
docs: 动态添加词典
  
  @param <T>
  @param <T>
  
  @param FILTERDefault
  @param FILTERDefault2
  @param FILTER2