Re: [PR] [Canary] Grails 9 on Groovy 6.0.0-SNAPSHOT [grails-core]

["jamesfredley (via GitHub)" <gi...@apache.org>]

jamesfredley commented on PR #15558:
URL: https://github.com/apache/grails-core/pull/15558#issuecomment-5159770955

   ## 2026-08-02 refresh
   
   ### Trunk sync
   - Merged `8.0.x` → `8.1.x` and pushed
   - Merged `8.1.x` → `9.0.x` (kept 9.0 version bindings) and pushed
   - Merged `9.0.x` into `grails8-groovy6-canary` and pushed (`dd0f4a8075`)
   
   ### Conflict resolutions on canary
   - `dependencies.gradle`: kept Groovy `6.0.0-SNAPSHOT` + Jackson `2.22.1` / annotations `2.22`; took trunk Log4j `2.25.5` and related security pins; aligned Hibernate5 Micronaut island Groovy pin to `5.0.8`
   - `end-to-end/spring-dependency-management`: took end-to-end layout from trunk; kept canary `ext['groovy.version']` override
   - `GlobalGrailsClassInjectorTransformation`: took full 9.0.x rewrite; retained only `classInjectorCache.get(...)` (Groovy 6 `@CompileStatic` Map subscript workaround)
   
   ### Groovy 6 workaround review
   Surveyed recent Groovy / Spock status (Groovy 6 still pre-release / alpha-2 + master; Spock has no `groovy-6` artifact yet). **No workarounds removed today** without a canary proof build. Confident keep: Spock bridge, Micronaut island, Jackson 2.22, WriteFilteringMap excludes, CoreGrailsPlugin beans, URL mapping qualify, SBOM JLine, joint CI→master. Candidates for later retest only: JSON views default methods (`GROOVY-10687`), MapConstructor / GORM staticPropertyMissing.
   
   ### PR hygiene
   - Description rewritten to current tip state only (no historical narrative)
   - PR is mergeable against `9.0.x` again
   
   Still **DRAFT / DO NOT MERGE**.


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