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Update fixture Jackson to 3.1.7 and route pinned Dependabot updates - #233

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jmanico merged 1 commit into
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chore/jackson-3.1.7-dependabot-routing
Oct 5, 2026
Merged

jmanico merged 1 commit into
mainfrom
chore/jackson-3.1.7-dependabot-routing

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@jmanico jmanico commented Oct 5, 2026

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Raises the Jakarta fixture's Spring Boot plugin-realm Jackson pin from 3.1.6 to 3.1.7 for GHSA-wv8q-qhhj-9h54 and GHSA-cxp5-3px4-pw24 (Dependabot alerts #590 and #591). This supersedes #231, which failed only because the policy test asserts the exact pinned version. The core library's test-only Jackson 2.22.3 is already the fixed 2.x release, and published library dependencies and artifacts are unchanged.

It also changes how Dependabot routes updates, based on #232:

  • Jackson (tools.jackson.core:jackson-databind, jackson-core) is excluded from the broad maven-dependencies group, and minor/major version updates are ignored. Boot 4.1.1's plugin realm stays on the 3.1 line; patch and security updates remain eligible. The pin is an exact policy-test value, so a Jackson proposal can no longer block the routine group.
  • Maven wrapper (org.apache.maven:apache-maven) is excluded from the group but not ignored, so 3.10.0 arrives as its own PR for toolchain review. That PR must also move the release enforcer range, check-wrapper.py, check-reproducible.py and the build docs, and keep mvnw.cmd LF in the index.
  • commons-lang3 3.21.0 stays in the group as a routine update.

The decisions and revisit conditions are recorded in .github/DEPENDENCY_DECISIONS.md. A new policy test keeps every coordinate with a versioned ignore rule out of the broad group.

Verification

  • python3 -m unittest discover -s scripts/tests: 35 tests pass. The new routing test fails when either the Maven or a Jackson exclusion is removed.
  • maven-dependency-plugin:3.11.0:resolve-plugins on jakarta-test (JDK 17, isolated repository) resolves spring-boot-maven-plugin with jackson-databind and jackson-core 3.1.7.
  • The packaged browser fixture runs in CI.

After merge

Raise the Jakarta fixture's Spring Boot plugin-realm Jackson pin to 3.1.7
for GHSA-wv8q-qhhj-9h54 and GHSA-cxp5-3px4-pw24, superseding #231.

Exclude the exact Jackson pins and the Maven wrapper distribution from the
grouped Dependabot PR, and ignore Jackson minor/major version updates while
Boot 4.1.1 stays on the 3.1 line. Security updates remain eligible. Record
the #232 dispositions and revisit conditions, and add a policy test that
keeps versioned ignore rules out of the broad group.
@jmanico
jmanico requested a review from jeremylong as a code owner October 5, 2026 12:25
@jmanico
jmanico merged commit ee1e2a8 into main Oct 5, 2026
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