[GROOVY-8207] Using defaults=false and includeFields=true w/ @TupleConstructor errors over metaClass

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0-alpha-1
• Component/s: groovy-jdk
• Assignee: Eric Milles
• Reporter: Emanuel Rabina
• Created: 26/May/17 10:38
• Updated: 22/Dec/23 11:38
• Resolved: 22/Nov/22 20:30

Description

When trying out the new defaults = false feature of @TupleConstructor in conjunction with includeFields = true, I get a compiler error of:

Groovyc: Error during @TupleConstructor processing, default value processing disabled but default value found for 'metaClass'

Seems that includeFields = true ropes in the metaClass field, and so to work around it I have to add excludes = ['metaClass'] to the annotation.

Is this intended behaviour? The example in the JavaDocs doesn't make mention of any metaClass or other Groovy internals, just declared fields.
http://docs.groovy-lang.org/docs/groovy-2.5.0-alpha-1/html/api/groovy/transform/TupleConstructor.html