Modify JSON using FastXML Jackson without explicit deserialization

Main.java

	public static void main(String[] args) throws IOException {
		ObjectMapper mapper = new ObjectMapper();
		mapper.enable(SerializationFeature.INDENT_OUTPUT);

		ObjectNode rootNode = (ObjectNode)
				mapper.readTree(Main.class.getResource("toModify.json"));

		ArrayNode listOfObjectsToModify =
				(ArrayNode) rootNode.get("listOfObjectsToModify");

		for(JsonNode element : listOfObjectsToModify) {
			if (element.getNodeType() == JsonNodeType.OBJECT) {
				ObjectNode objElement = (ObjectNode) element;

				objElement.put("extraCrap", "yay!");
				objElement.put("timestamp", LocalDateTime.now().toString());
			}
		}

		System.out.println(mapper.writeValueAsString(rootNode));
	}

/* toModify.json: ------------------------------------------
{
  "someProperty": 1.3,
  "someOtherProperty": "foo",
  "otherCrap": true,

  "listOfObjectsToModify": [
    { "id": 1, "value": "foo" },
    { "id": 2, "value": "bar" },
    { "id": 3, "value": { "someNestedCrap": "baz" } }
  ]
}
----------------------------------------------------------- */
/* Output: ------------------------------------------------
{
  "someProperty" : 1.3,
  "someOtherProperty" : "foo",
  "otherCrap" : true,
  "listOfObjectsToModify" : [ {
    "id" : 1,
    "value" : "foo",
    "extraCrap" : "yay!",
    "timestamp" : "2017-11-15T20:38:53.760"
  }, {
    "id" : 2,
    "value" : "bar",
    "extraCrap" : "yay!",
    "timestamp" : "2017-11-15T20:38:53.766"
  }, {
    "id" : 3,
    "value" : {
      "someNestedCrap" : "baz"
    },
    "extraCrap" : "yay!",
    "timestamp" : "2017-11-15T20:38:53.766"
  } ]
}
---------------------------------------------------- */