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Posted to issues@maven.apache.org by "ascheman (via GitHub)" <gi...@apache.org> on 2026/07/19 17:43:58 UTC
[PR] [Backport 4.0.x] Avoid IllegalStateException on duplicate profile ids in DefaultModelBuilder [maven]
ascheman opened a new pull request, #12506:
URL: https://github.com/apache/maven/pull/12506
Backport of #12419 to `maven-4.0.x` — clean cherry-pick of 67a94a1d926, no conflicts.
This fixes the MNG-8418 (#10209) regression on the rc-6 line: POMs with duplicate profile ids (e.g. javafx ≤ 20 with its OS-named profiles) crash dependency collection with `IllegalStateException: Duplicate key` from `Collectors.toMap` in `DefaultModelBuilder.getProfileActivations`. Maven 3 accepts these POMs; duplicate-id diagnostics remain with the validator.
This was also the root cause of the `massembly-969` IT failure in maven-assembly-plugin's Maven 4 lane (apache/maven-assembly-plugin#1311) before the plugin worked around it by bumping to javafx 26 (apache/maven-assembly-plugin#1325) — real projects depending on older javafx POMs still hit it on rc-5.
Verified on this branch: `DefaultModelBuilderTest` 13/13 green (includes the new duplicate-profile-ids regression test).
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Re: [PR] [Backport 4.0.x] Avoid IllegalStateException on duplicate profile ids in DefaultModelBuilder [maven]
Posted by "ascheman (via GitHub)" <gi...@apache.org>.
ascheman merged PR #12506:
URL: https://github.com/apache/maven/pull/12506
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