code: public Deserializer getDeserializer(Class cl)
          throws HessianProtocolException {
          Deserializer deserializer;
  
          deserializer = (Deserializer) _cachedDeserializerMap.get(cl);
  
          if (deserializer != null)
              return deserializer;
  
          deserializer = loadDeserializer(cl);
  
          _cachedDeserializerMap.put(cl, deserializer);
  
          return deserializer;
      }
docs: Returns the deserializer for a class.
  
  @param cl the class of the object that needs to be deserialized.
  @return a deserializer object for the serialization.