[GROOVY-7264] NPE in TypeResolver when access$XXX method generated for a method with generic types

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.3.9, 2.4.0
• Fix Version/s: 2.3.10, 2.4.1
• Component/s: Static compilation
• Assignee: Cédric Champeau
• Reporter: Cédric Champeau
• Created: 22/Jan/15 03:06
• Updated: 23/Feb/15 01:12
• Resolved: 22/Jan/15 03:14

Description

If a bridge method is generated for a method that uses generic types defined in a super class or interface, then the compilation will succeed, but trying to use the generated class will fail with a NPE in TypeResover.

For example:

public class BaseGeneric<T> {
        protected boolean foo(T t) {
            true
        }
}

// ...

@groovy.transform.CompileStatic
class Ext extends BaseGeneric<Integer> {

    int doSomething() {
        def c = {
            foo(123) // a bridge method is generated (access$...)
        }
        c.call()?1:0
    }
}