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https://issues.apache.org/jira/browse/GROOVY-12467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18130954#comment-18130954
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Jex Jexler commented on GROOVY-12467:
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Thanks, as expected! :)
> Groovy 2.5's bundled ASM cannot read JDK 25 class files
> -------------------------------------------------------
>
> Key: GROOVY-12467
> URL: https://issues.apache.org/jira/browse/GROOVY-12467
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
> Affects Versions: 2.5.x
> Reporter: Jex Jexler
> Priority: Major
>
> Compiling scripts can fail with "Unsupported class file major version 69",
> because Groovy 2.5's bundled ASM cannot read JDK 25 class files. Tested with
> Groovy 2.5.23 (released in 2023).
> *Workaround:* Turn off ASM resolving in the compiler configuration with
> {noformat}
> config.getOptimizationOptions().put("asmResolving", false){noformat}
> (comes with a certain performance cost)
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