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[4.0.x] Fix mvnup effective model analysis for CI-friendly parent versions#12219

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[4.0.x] Fix mvnup effective model analysis for CI-friendly parent versions#12219
gnodet wants to merge 1 commit into
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@gnodet gnodet commented Jun 4, 2026

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Cherry-pick of #12205

…pache#12205)

* Fix mvnup effective model analysis for CI-friendly parent versions

mvnup's PluginUpgradeStrategy copied POMs to a temp directory for
effective model analysis. That temp directory lacked .mvn, so root
detection failed for child modules with ${revision} parent versions,
producing "Parent POM is located above the root directory" errors.

Eliminate the temp directory entirely — build effective models from
the original file paths, which already have proper .mvn and project
structure for root detection.

Also fix DefaultModelBuilder.doReadFileModel() to:
- Enter the parent resolution block when parent version contains
  expressions (${revision}, etc.)
- Only enforce isParentWithinRootDirectory when rootDirectory came
  from the session, not the fallback heuristic
- Accept parent version match when version contains an expression

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Fix Spotless formatting violation

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
@gnodet gnodet closed this Jun 4, 2026
@gnodet gnodet deleted the cherry-pick-12205-to-4.0.x branch June 4, 2026 08:56
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