Juergen Hoeller opened SPR-10028 and commented

Spring's CachedIntrospectionResults class traditionally comes with three different modes of static caching, primarily for defensiveness in terms of ClassLoader leaks. These three modes can be simplified to two: basically traditional ClassLoader layouts (with embedded Spring jars within the application) and non-traditional layouts (with the Spring jars higher up the hierarchy or in a different node of the ClassLoader tree altogether).

Issue Links:

• ExtendedBeanInfo exception - java.beans.IntrospectionException [SPR-9702] #14336 ExtendedBeanInfo exception - java.beans.IntrospectionException
• Revisit class cache in CachedIntrospectionResults [SPR-11867] #16486 Revisit class cache in CachedIntrospectionResults
• Overhaul non-void JavaBean write method support [SPR-10029] #14663 Overhaul non-void JavaBean write method support

Referenced from: commits bed2134, 0ee1256, c368068, 4a8be69