[jira] [Commented] (GROOVY-8188) Unpredictable behavior - Compiler error: groovyc: You are not allowed to override the final method

["Paul King (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GROOVY-8188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015132#comment-16015132 ] 

Paul King commented on GROOVY-8188:
-----------------------------------

It isn't your method that is causing the error but rather (for some strange reason) a bridge method is being created for the {{public final Join copy(RelTraitSet traitSet, List<RelNode> inputs)}} method in {{org.apache.calcite.rel.core.Join}}.

> Unpredictable behavior - Compiler error: groovyc: You are not allowed to override the final method
> --------------------------------------------------------------------------------------------------
>
>                 Key: GROOVY-8188
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8188
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler
>    Affects Versions: 2.4.11
>         Environment: Windows
>            Reporter: Abbas Gadhia
>         Attachments: groovyc.7z
>
>
> I'm trying to extend from an abstract class and override one of its abstract methods. Another "final" concrete method of the same name exists in the abstract class.
> When I compile, it complains that i cannot override the method marked as final, however i've only overriden the abstract method, and not the "final" one.
> This issue is sporadic. The error pops up and goes after several retries
> I've attached a simple project that reproduces this issue. The error may or may not happen the first time. Tweaking the code here and there, gets the issue to pop up
> Here's a sample of the error message
> bq. Error:Groovyc: You are not allowed to override the final method copy(org.apache.calcite.plan.RelTraitSet -> org.apache.calcite.plan.RelTraitSet,java.util.List -> java.util.List <E extends java.lang.Object>) from class 'org.apache.calcite.rel.core.Join'.



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