Cannot deserialize value of type java.util.ArrayList<>

 

Hello,

If you are encountering an error as in the title. It is probably due to the singular object coming in the field you defined as List<>. It will be enough to make the following setting for ObjectMapper.

  ObjectMapper objectMapper = new ObjectMapper()
  objectMapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY,true);
  

That's it.

Seamless java days