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Posted to issues@maven.apache.org by "gnodet (via GitHub)" <gi...@apache.org> on 2026/06/22 18:11:05 UTC
[PR] [Backport 4.0.x] Fix NPE in DefaultLookup.lookupOptional() when container returns null [maven]
gnodet opened a new pull request, #12340:
URL: https://github.com/apache/maven/pull/12340
Backport of #12336 to `maven-4.0.x`.
Cherry-pick of 712b5c0791 — clean, no conflicts.
## Summary
- `PlexusContainer.lookup()` can return `null` instead of throwing `ComponentLookupException`. `DefaultLookup.lookupOptional()` wraps the result with `Optional.of()`, which throws `NullPointerException` on null input. Changed to `Optional.ofNullable()` so a null result is correctly represented as `Optional.empty()`.
- This fixes `maven-jdeprscan-plugin` integration tests (`list-default`, `list-forremoval`) which fail on Maven 4.0.x because `DefaultToolchainManager.retrieveContext()` calls `lookupOptional(Project.class)` and the container returns null.
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Re: [PR] [Backport 4.0.x] Fix NPE in DefaultLookup.lookupOptional() when container returns null [maven]
Posted by "gnodet (via GitHub)" <gi...@apache.org>.
gnodet merged PR #12340:
URL: https://github.com/apache/maven/pull/12340
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