Fix changelog generator missing directly removed properties #45267
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spring-projects-issues
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status: waiting-for-triage
The changelog generator did not detect properties that were added to a new version with error-level deprecation (indicating immediate removal). This commonly occurs when upgrading dependencies like Flyway 10, where properties are removed without prior deprecation. Modified the computeDifferences method to detect properties that only exist in the new metadata with error-level deprecation and properly mark them as DELETED in the changelog. Signed-off-by: yybmion <[email protected]>
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Issue
Closes #40075
The configuration properties changelog generator misses items that are removed without prior deprecation. When a property is removed without being deprecated first (like during the Flyway 10 upgrade), these changes are reflected in the metadata but not included in the generated changelog.
Solution
Modified the
computeDifferencesmethod in theChangelogclass to detect properties that only exist in the new metadata with error-level deprecation and properly mark them as DELETED in the changelog. This ensures that properties that are added to a new version with error-level deprecation (indicating immediate removal) are correctly included in the "Removed in X.X" section of the changelog.Specifically, added logic to check for properties in the new metadata that
Tests
The existing test
diffContainsDifferencesBetweenLeftAndRightInputsalready verifies this functionality by testing that properties with error-level deprecation are properly classified as DELETED.To make the test cover this fix, we enhanced the
sample-2.0.jsontest data to include an additional property (test.removed.directly) that demonstrates a property removed without prior deprecation, marked with error-level deprecation and a reason "Removed in Upgrade 10".After fix, this test confirms that both regular removed properties and those marked with error-level deprecation are correctly included in the changelog.