[GROOVY-11144] MissingPropertyEx when accessing private static field in closure of same class

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.13
• Fix Version/s: 5.0.0-alpha-1, 4.0.22
• Component/s: groovy-runtime
• Environment: Windows 10, Groovy 4.0.13, Java 17.0.8
• Assignee: Eric Milles
• Reporter: Andreas Turban
• Created: 01/Aug/23 06:42
• Updated: 29/Jun/24 11:54
• Resolved: 01/Aug/23 12:58

Description

When accessing a private static final field from a Closure within the same class Groovy 4 throws a MissingPropertyException. The code works in Groovy 2.5.22 & 3.0.18.

The real instance of the object needs to be a subtype of the class containing the constant.

See attached code to reproduce.

Expected behavior:
The code runs without error

Actual behavior:
Groovy 4 throws:

groovy.lang.MissingPropertyException: No such property: field for class: FirstEvent
    at BaseEvent$_init_closure1.doCall(Test.groovy:7)
    at BaseEvent.init(Test.groovy:7)
    at Test.run(Test.groovy:15)

Notes:
Interestingly if you remove the static keyword from private static final String field = "name"
it fails in all three versions 2.5.22, 3.0.18 & 4.0.13 with a MissingPropertyException.
I would expect that the code should also work for these cases.

 

The problem came up in a discussion about a Spock issue #1544.

Issue Links

• relates to: GROOVY-11360 Issue a warning when accessing static fields that are "shadowed" by get() methods