javax.json: Add new JsonNumber to existing JsonObject

Question

I want to add properties to an existing instance of JsonObject. If this property is boolean, this is quite easy:

JsonObject jo = ..         


        

Answer 1

Try using JsonPatch

String json ="{\"name\":\"John\"}";
JsonObject jo = Json.createReader(new StringReader(json)).readObject();
JsonPatch path = Json.createPatchBuilder()
        .add("/last","Doe")
        .build();
jo = path.apply(jo);
System.out.println(jo);