[BUG] SuperBuilder does not compile then binding generics to an array

[aronneberg]

Describe the bug
Using an array to bind a generic type in an abstract class with the SuperBuilder annotation results in a compile error.

To Reproduce
Create abstract class with generic type:

@SuperBuilder
public abstract class AbstractGenericsClass<S extends Serializable> { }

Extend the class with an array-type for the generic:

@SuperBuilder
public class GenericsClass extends AbstractGenericsClass<Integer[]> { }

The bug is not limited to Integer[] but occurs for arrays of any type.
Run maven clean install to compile the classes, this results in:

[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /.../GenericsClass.java:[8,1] wrong number of type arguments; required 3

Expected behavior
The code should compile like with non-array-type generics.

Version info (please complete the following information):

• Lombok 1.18.32
• javac 17.0.10

[aronneberg]

If someone faces the same problem: My current work-around is to delombok the classes affected by the bug, remove the SuperBuilder annotation (keeping all other Lombok annotations) and copy the generated builder code from the delomboked class instead. The array type is missing from the generated code as well but can simply be added to the copied code.

[janrieke]

Can confirm. Works in Eclipse, fails on javac.
I'm working on a fix.

[janrieke]

PR #3697 fixes this issue.

[janrieke]

The issue is fixed in the latest lombok release v1.18.34.

[aronneberg]

Works in Lombok 1.18.34. Thanks for fixing it.