[GROOVY-9144] Fix warning "An illegal reflective access operation has occurred"

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.11, 2.4.15
• Component/s: groovy-jdk

Environment

>gradle --version
Gradle 4.2
Build time: 2017-09-20 14:48:23 UTC
Revision: 5ba503cc17748671c83ce35d7da1cffd6e24dfbd

Groovy: 2.4.11
Ant: Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM: 9 (Oracle Corporation 9+181)
OS: Windows 10 10.0 amd64

Language

groovy

• Assignee: Eric Milles
• Reporter: Benjamin Roedell
• Created: 25/May/19 14:02
• Updated: 22/Dec/23 11:38
• Resolved: 24/Jul/23 22:00

Description

This cloned issue is to cover the rest part of GROOVY-9103.

? means that we should discuss the case further as some breaking changes may be introduced.

2) Sub-class derives the protected members from public class,

2.0) ?Invoke the members on the sub class instances(Truely illegal access), e.g.
https://github.com/apache/groovy/blob/b7d24132129cc871e81e1c0a0edc4608c5b85477/subprojects/groovy-swing/src/test/groovy/groovy/swing/beans/BindableSwingTest.groovy#L32
We are considering to generate stub/bridge methods automatically.

Issue Links

• is a clone of: GROOVY-9103 CLONE - CLONE - Fix warning "An illegal reflective access operation has occurred"
• relates to: GROOVY-9596 Cannot access protected field of Java superclass with --illegal-access=deny
• relates to: GROOVY-10070 Groovy classes (for Groovy < 4) cannot access protected methods from base classes under Java 16
• relates to: GROOVY-10931 Remove $getLookup method generation (Groovy 4+)