Lombok - retain field's annotation in constructor input params

Question

Lombok misses field's annotation while auto generating constructor. Is there a way to retain field's annotation in constructor input params?

Class to generate constructor,

@RequiredArgsConstructor(onConstructor = @__(@Inject)) public class Test {      @Named("MyField")     private final String field;     @Named("MyHandler")     private final SomeHandler handler; } 

Generated class :

public class Test {      @Named("MyField")     private final String field;     @Named("MyField")     private final SomeHandler handler;      @Inject     public Test(final String field, final SomeHandler handler) {         this.field = field;         this.handler = handler;     } } 

Desired class :

public class Test {      @Named("MyField")     private final String field;     @Named("MyHandler")     private final SomeHandler handler;      @Inject     public Test(@Named("MyField")final String field,                  @Named("MyHandler")final SomeHandler handler) {         this.field = field;         this.handler = handler;     }  } 

Answer 1

In version v1.18.4 Lombok added support for copying specific annotations. Meaning, that if you put following setting to lombok.config:

lombok.copyableAnnotations += com.google.inject.name.Named 

and apply following Lombok annotations to your class:

@RequiredArgsConstructor(onConstructor = @__(@Inject)) public class Hello {     @NonNull @Named("my-name") String name; } 

the @Named annotation should be copied to your generated constructor argument.

Limitations: this does not work when annotation can't be put on a field or annotation on a field overrides constructor initialization