[BUG] UI Error when a generated Field is used on annotation

[c-koell]

Describe the bug
We are using lombok 1.18.30 within eclipse 2023-09.

We use the @FieldNameConstants Annotation a InnerClass with static final Fields will be generated.

If we use the static final Fields on a annotation there is no Compile Error but we see a Error on the Classs itself

To Reproduce
The Problems View is empty, and the code works if you run it ...

You will find a sample eclipse project here
Sample-Project.zip

I have also created a issue in jdt-ui eclipse-jdt/eclipse.jdt.ui#865 but a project member thought it is maybe a problem of lombok.

Thanks for any help.

[rspilker]

Does using a fully qualified name fix the problem? For example: com.example.Person.Fields.id. If it does, then this is a known probleem, and not something we can easily fix.

[c-koell]

Hi @rspilker !

Also with full qualified name the problem exists :-(

thanks for your help !

[Rawi01]

Can reproduce this in eclipse, two files are required. I have already found out that at some point the initializer of the generated field gets replaced with null.

[c-koell]

@Rawi01 do you have some plan how to fix it ?

[Rawi01]

Yes, I have almost finished my patch for this problem

[c-koell]

@Rawi01 that sounds great ! I would also test your patch if you like.

[c-koell]

@Rawi01 do you know when this fix will be available ? Thanks !

[c-koell]

@Rawi01 any news here ? It would be great if we could have some fix for it .. thanks lot !

[Rawi01]

Oh, I forgot to create a pull request for the changes, sorry.

[c-koell]

@Rawi01 thank you for the fix ! How often will the Snapshot be build so that i can try it ?

[rzwitserloot]

@c-koell Anytime we do something even remotely significant. Possibly tonight (thursday evening), @rspilker and I usually find some time to do some work. I suggest you reload the edge-release page on friday and have a look ;)

[c-koell]

@rzwitserloot the edge-release page says always version: 1.18.31 (2024-01-12 00:13:12 UTC)
should it contain that fix ?

[rspilker]

This is part of the latest edge release, all feedback is welcome.

[getzabelz]

Now It's even worse to me, everytime I change a java class file the errors for the constants comes back

Only workaround I found is everytime i change a class file to delete all error messages, maven package, and refresh. I'll go back to lombok 31 subversion which was only throwing this errors from time to time

[c-koell]

@getzabelz i see no more problems .. that's interesting that you have now more problems ..

[getzabelz]

@c-koell

@getzabelz i see no more problems .. that's interesting that you have now more problems ..

Maybe I have something wrong in my local? Tried with a fresh installed Eclipse and I still get the same, actual config is:

• Version: 2024-03 (4.31.0)
• Build id: 20240307-1437
• Lombok v1.18.32 "Envious Ferret" is installed. https://projectlombok.org/
• JDK 17

An example usage that throws error:
@JsonIgnoreProperties(Entity.Fields.field1)

throws following error marker:
The value for annotation attribute JsonIgnoreProperties.value must be a constant expression

Only workaround that temporarily works for me is removing all markers, maven package and refresh and still It only works half of the times...

any idea?

[Rawi01]

@getzabelz Can you share a full example and also check if there is an error in your eclipse error log?

[getzabelz]

@Rawi01

@getzabelz Can you share a full example and also check if there is an error in your eclipse error log?

Checked eclipse logs and I don't see anything related to Lombok. I've been doing tests in a fresh setup and It seems that It breaks whenever I use QueryDSL with Lombok and @FieldNameConstants, could it be a conflict in between processors? I can't find any information or workaround, anyone got any clue?

My pom.xml configuration related to both in case It's useful:

<querydsl.version>5.1.0</querydsl.version>
<dependency>
	<groupId>com.querydsl</groupId>
	<artifactId>querydsl-jpa</artifactId>
	<classifier>jakarta</classifier>
	<version>${querydsl.version}</version>
</dependency>
<dependency>
	<groupId>org.projectlombok</groupId>
	<artifactId>lombok</artifactId>
	<scope>provided</scope>
</dependency>

<plugin>
  <groupId>com.mysema.maven</groupId>
  <version>1.1.3</version>
  <artifactId>apt-maven-plugin</artifactId>
  <executions>
	  <execution>
		  <goals>
			  <goal>process</goal>
		  </goals>
		  <phase>generate-sources</phase>
		  <configuration>
			  <outputDirectory>target/generated-sources/java</outputDirectory>
			  <processors>
				  <processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
				  <processor>lombok.launch.AnnotationProcessorHider$AnnotationProcessor</processor>
			  </processors>
		  </configuration>
	  </execution>
  </executions>
  <dependencies>
	  <dependency>
		  <groupId>com.querydsl</groupId>
		  <artifactId>querydsl-apt</artifactId>
		  <version>${querydsl.version}</version>
		  <classifier>jakarta</classifier>
	  </dependency>
  </dependencies>
</plugin>