Generics and caching causing issues [SPR-13358]

[spring-projects-issues]

Abdul Rahim Suriya opened SPR-13358 and commented

The LazyParamAwareEvaluationContext caches the java.lang.reflect.Method instance on which the Caching annotations are present against a (programmatically generated) method signature.

This causes issue with generics in an interface hierarchy. If not a fix in the code, a documentation update should help in warning under certain circumstances. In fact the default recommendation can be to use the #root.args[] or #a0, #p0 for referring to method parameters rather than by name (which would also not be available in cases where compilation step did not include debug information)

The referenced github project is a sample that helps reproduce the issue and also provides recommendation for the fix in such scenario.

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Affects: 3.2.14

Reference URL: https://github.com/arsuriya/spring-caching-generics

Issue Links:

• The expression language used in cache annotations can be error prone when referencing explict parameter names [SPR-9525] #14159 The expression language used in cache annotations can be error prone when referencing explict parameter names

[spring-projects-issues]

Stéphane Nicoll commented

Please upgrade as this is fixed since Spring Framework 4.0.4.RELEASE and later (see #16314)