Skip adding methods already provided by a superclass#983
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When a class extends a superclass that already has the method implementation, AddMissingMethodImplementation should not add the method again. Reproduces moderneinc/customer-requests#1862
AddMissingMethodImplementation now walks up the superclass chain to check if the method is already inherited, avoiding unnecessary duplicate method additions to classes like HikariDataSource subclasses. Fixes moderneinc/customer-requests#1862
timtebeek
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Feb 14, 2026
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Summary
AddMissingMethodImplementationnow checks the superclass hierarchy before adding a methodProblem
When running the Spring Boot 4 migration recipe,
isWrapperFor,unwrap, andgetParentLoggermethods were being added to classes that extend superclasses (e.g.,HikariDataSource,SnowflakeBasicDataSource) which already provide these methods. The recipe only checked the class's own body for existing methods, not the inherited ones.Solution
Walk up the
getSupertype()chain inAddMissingMethodImplementationand check if any superclass already has a matching method viagetMethods(). If so, skip adding the method.Test plan
Existing tests pass
New test added:
skipWhenSuperclassAlreadyHasMethod— verifies that a subclass extending a superclass with the method is left unchangedFixes moderneinc/customer-requests#1862