[GROOVY-7686] Can not see local variable from overriden method called from the constructor of an anonymous class instance

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.5
• Fix Version/s: 3.0.8, 4.0.0-alpha-3, 2.5.16
• Component/s: Compiler, groovy-runtime
• Environment: Linux
• Assignee: Eric Milles
• Reporter: Roman Saveljev
• Created: 24/Nov/15 21:21
• Updated: 31/Jan/22 18:02
• Resolved: 20/Mar/21 02:19

Description

Reduced code showing the problem: https://gist.github.com/RomanSaveljev/71ed29b0df3eb306485c

In the runtime it fails with:

Caught: java.lang.NullPointerException
java.lang.NullPointerException
	at bug$1.func(bug.groovy:14)
	at A.<init>(bug.groovy:3)
	at bug$1.<init>(bug.groovy)
	at bug.func(bug.groovy:11)
	at bug.run(bug.groovy:22)

It happens, because inside the overriden method it tries to access locally defined t. I have translated the same code to Java (see the gist) and it works as expected.