Prevent class/classloader retention in GenericConversionService [SPR-13099] #17690
Description
Eric Bottard opened SPR-13099 and commented
Context: Spring XD creates disposable application contexts (modules) with their own classloader, from a main context which is loaded from the system classloader. That main context happens to have a GenericConversionService that is aware of types that are loaded from the modules classloaders.
This creates a leak that prevents the module classloaders to be GC'ed.
The path is as below:
mainContext -> stuff -> genericConversionService -> converterCache -> cacheKey -> (source|target)Type -> resolvableType -> resolved(Class) -> module ClassLoader
Note that there may be other paths that may be problematic in other situations
Affects: 4.2 RC1