code: @Override
  	public boolean canRead(Class<?> clazz, @Nullable MediaType mediaType) {
  		return type.isAssignableFrom(clazz) && super.canRead(clazz, mediaType);
  	}
docs: /*
  (non-Javadoc)
  @see org.springframework.http.converter.json.MappingJackson2HttpMessageConverter#canRead(java.lang.Class, org.springframework.http.MediaType)