[BUG] Jackson annotation @JsonProperty not working with @Jacksonized

[davidvc]

Describe the bug If you use the @JsonProperty annotation on a field to provide a property name that differs from the field name, it does not work. This is with Lombok 1.8.2

To Reproduce Here is a sample class and a unit test that fails:

  @Value
  @Builder
  @Jacksonized
  private static class JacksonExample {
    @JsonProperty("myName")
    String name;
    int age;
  }

  @Test
  public void jsonPropertyAnnotationLetsYouMapAPropertyToAFieldWithDifferentName() throws Exception {
    JacksonExample jacksonExample = JacksonExample.builder().age(27).name("Joe").build();
    String json = "{\"myName\": \"Joe\", \"age\": 27}";

    ObjectMapper objectMapper = new ObjectMapper();
    JacksonExample result = objectMapper.readValue(json, JacksonExample.class);

    assertThat(result, is(equalTo(jacksonExample)));
  }

Here is the error I get:

com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "myName" (class com.ebay.raptor.viexpsvc.common.lombok.LombokExamplesTest$JacksonExample$JacksonExampleBuilder), not marked as ignorable (2 known properties: "name", "age"])
 at [Source: (String)"{"myName": "Joe", "age": 27}"; line: 1, column: 13] (through reference chain: com.ebay.raptor.viexpsvc.common.lombok.LombokExamplesTest$JacksonExample$JacksonExampleBuilder["myName"])

When I look at the generated code, the Builder does not have any Jackson annotations on it:

    @Generated
    public static class JacksonExampleBuilder {
      @Generated
      private String name;
      @Generated
      private int age;

      @Generated
      JacksonExampleBuilder() {
      }

      @Generated
      public LombokExamplesTest.JacksonExample.JacksonExampleBuilder name(String name) {
        this.name = name;
        return this;
      }

      @Generated
      public LombokExamplesTest.JacksonExample.JacksonExampleBuilder age(int age) {
        this.age = age;
        return this;
      }

      @Generated
      public LombokExamplesTest.JacksonExample build() {
        return new LombokExamplesTest.JacksonExample(this.name, this.age);
      }

      @Generated
      public String toString() {
        return "LombokExamplesTest.JacksonExample.JacksonExampleBuilder(name=" + this.name + ", age=" + this.age + ")";
      }
    }

Expected behavior Attaching @JsonProperty to a field should be honored using @Jacksonized with @Value

Version info (please complete the following information):

• Lombok version 1.8.2
• java version 11.

• openjdk version "11.0.1" 2018-10-16 LTS
  OpenJDK Runtime Environment Zulu11.2+2 (build 11.0.1+13-LTS)
  OpenJDK 64-Bit Server VM Zulu11.2+2 (build 11.0.1+13-LTS, mixed mode)

[dingsheng1214]

It works for me

[P041]

This combination of annotations does not work.

[janrieke]

I'm quite sure this has been fixed in the meantime. Can you confirm that this does not work with Lombok 1.18.22?

[P041]

I'm quite sure this has been fixed in the meantime. Can you confirm that this does not work with Lombok 1.18.22?

yep, I'm using this version

org.projectlombok lombok 1.18.22

[bkuberek]

same here

[janrieke]

I just checked again, and cannot reproduce. Your example works for me both in Eclipse and javac (via maven compile). Please double-check that you are actually using the latest version of lombok (also check the version installed in Eclipse, if you are using that IDE).

[bkuberek]

I am. But I circunvented the issue by renaming the field instead of using @JsonProperty. I did not have time to go deeper and I wonder if this could be an Intellij IDEA problem. I experienced this while using Intellij to build. If I have time, I will try reproducing it later.

[janrieke]

Yes, it could be an IntelliJ IDEA issue. @Jacksonized is rather new and experimental, and given that the IntelliJ lombok plugin has its own builder processing, it is very likely that IntelliJ does not (or not correctly) consider this annotation.

Try building with maven/gradle/whatever you use and check whether the problem persists. (If it does, it's a lombok issue, if not, it's on IntelliJ.)

[rzwitserloot]

I think @janrieke has it right. Without feedback, this can be closed 2022-04-01.

[sysid]

Same problem for me (1.18.24). Also using Intellij. Will rename field, no time to go deeper.

[nucatus]

Make sure that all the jackson annotations are imported from the com.fasterxml.jackson.annotation package and NOT from org.codehaus.jackson.annotate package. This is a very easy mistake to make.

[serpmelon]

@nucatus You save my ass

[rzwitserloot]

seems fixed then.