CachedIntrospectionResults should use BeanInfoFactory when introspecting implemented interfaces [SPR-16322]

[spring-projects-issues]

Phil Webb opened SPR-16322 and commented

#18772 updated CachedIntrospectionResults to explicitly introspect implemented interfaces (for Java 8 default methods), however it directly calls Introspector.getBeanInfo and I believe it should probably try the BeanInfoFactory implementations first, in case a custom introspection method is being used.

It's also possible to skip the Serializable interface and stop when Object is reached (rather than null).

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Affects: 5.0.2

Issue Links:

• Java 8 default methods not detected as bean properties [SPR-14198] #18772 Java 8 default methods not detected as bean properties
• Reduce ClassUtils.forName overhead (in particular for annotation introspection purposes) [SPR-16667] #21208 Reduce ClassUtils.forName overhead (in particular for annotation introspection purposes)
• CachedIntrospectionResults should build complete descriptor for setter/getter across interface hierarchy [SPR-16978] #21516 CachedIntrospectionResults should build complete descriptor for setter/getter across interface hierarchy
• Consider caching interface-derived BeanInfo instances in CachedIntrospectionResults [SPR-16568] #21110 Consider caching interface-derived BeanInfo instances in CachedIntrospectionResults

Referenced from: pull request #1631, and commits 45828cb

[spring-projects-issues]

Phil Webb commented

#1631

[spring-projects-issues]

Juergen Hoeller commented

I've applied a fresh implementation of these points, with a common ClassUtils.isJavaLanguageInterface delegate shared with Conventions where not only Serializable but also Externalizable, Cloneable and Comparable are being ignored.