@Data
public class MyDto {

    private String stringValue;
    @JsonIgnore
    private int intValue;
    private boolean booleanValue;
}

@Test
    public void givenFieldIsIgnoredDirectly_whenDtoIsSerialized_thenCorrect()
            throws JsonParseException, IOException {

        ObjectMapper mapper = new ObjectMapper();
        MyDto dtoObject = new MyDto();
        String dtoAsString = mapper.writeValueAsString(dtoObject);
        System.out.println(dtoAsString.toString());
        System.out.println(dtoAsString);
        assertThat(dtoAsString, not(containsString("intValue")));
    }