@lombok.experimental.Helper annotation is not supported

[Vyacheslav-Lapin]

Short description

Annotation don't let you put methods in methods, as expected.

Expected behaviour

Correctly support the feature, introduced as an experimental in Lombok v1.16.6 (August 18th, 2015)

Version information

• IDEA Version: 2022.3
• JDK Version: OpenJDK Runtime Environment Corretto-19.0.1.10.1 (build 19.0.1+10-FR)
• OS Type & Version: Mac OS X Ventura 13.1
• Lombok Plugin Version: 223.8214.52
• Lombok Dependency Version: 1.18.24

Steps to reproduce

Just type the sample from Lombok documentation in page https://projectlombok.org/features/experimental/Helper . Line "return helperMethod(10);" will be red and looks like this: