[GROOVY-11301] References to inaccesible methods with static compilation leads to runtime error

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 5.0.0-alpha-6
• Component/s: Static compilation
• Assignee: Eric Milles
• Reporter: Thodoris Sotiropoulos
• Created: 30/Jan/24 13:39
• Updated: 07/Sep/24 19:09
• Resolved: 23/Feb/24 18:31

Description

I have the following ill-typed program

import java.util.function.Supplier;

public class Test {
  static class A {
    private static String m() { return null; }
  }
  public static void main(String[] args) {
    Supplier<String> x  = A::m;
  }
}

Actual behaviour

The compiler accepts the program, but I receive the following runtime error, because I access a private method.

Exception in thread "main" java.lang.IllegalAccessError: class Test tried to access private method 'java.lang.String Test$A.m()' (Test and Test$A are in unnamed module of loader 'app')
        at Test.main(groovy51.groovy:9)

Expected behavior

The program should have been rejected by the compiler.

Tested against master (commit: 191231a832efd2e2fc49391c01f8d176944d68e3)

Issue Links

• is related to: GROOVY-10687 JEP 181: replace bridge methods with nest-based access control
• relates to: GROOVY-11365 IllegalAccessError when using protected method as reference