[GROOVY-3128] VerifyError for class definition in script edge case

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.5.7, 1.6-beta-2
• Fix Version/s: 1.6.3, 1.7-beta-1
• Component/s: bytecode
• Assignee: Roshan Dawrani
• Reporter: Paul King
• Created: 01/Nov/08 10:40
• Updated: 07/Apr/15 19:07
• Resolved: 25/Apr/09 09:53

Description

This script runs fine:

class MyClosure extends Closure {
    MyClosure(owner) {
        super(owner)
    }
    void run() { println 'running' }
}
new MyClosure(this).run()

But when I run this script:

class MyClosure extends Closure {
    MyClosure() {
        super(this)
    }
    void run() { println 'running' }
}
new MyClosure().run()

I receive:

java.lang.VerifyError: (class: MyClosure, method: <init> signature: ()V)
Expecting to find object/array on stack

Perhaps accessing the this variable inside the class definintion isn't supported by current scoping rules but in any case we should get a nice error not VerifyError.