[GROOVY-6981] MalformedParameterizedTypeException when bounded generic attribute without visibility modifier

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.3
• Fix Version/s: 2.3.7, 2.4.0-beta-3
• Labels: generics
• Assignee: Jochen Theodorou
• Reporter: Piotr Betkier
• Created: 28/Jul/14 14:34
• Updated: 17/Dec/14 13:25
• Resolved: 30/Jul/14 06:03

Description

This code fails in runtime with MalformedParameterizedTypeException - run main to try it out:

class Dependency<T> {
}

class Something<T extends Number> {
    Dependency<? super T> dependency

    static main(String[] args) {
        new Something<Integer>()
    }
}

However, it does not fail if a visibility modifier is added before dependency attribute - private, protected, public or @PackageScope transformation.

This also fails with MalformedParameterizedTypeException and I don't know how to make it work:

class Something<T extends Number> {
    void someMethod(Dependency<? super T> dependency) {
    }

    static main(String[] args) {
        new Something<Integer>()
    }
}

Do you know what may be the cause? Do you know of any workaround for the second case?