JDK-8341999 : Allow unloading of dynamic Proxy implementation classes
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.lang:reflect
  • Affected Version: 24
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2024-10-11
  • Updated: 2024-11-04
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tbdUnresolved
Related Reports
Blocks :  
JDK-8242888 - Convert dynamic proxy to hidden classes
Description
Dynamic proxy implementation classes are currently strong. With dynamic proxy converted to hidden classes, they can no longer be statically discovered by user code via `Class.forName` and their unloading will have no observable effect. This allows us to garbage collect unused Proxy classes to save some memory.

This requires specification changes to dynamic Proxy, as currently it specifies that Proxy classes are defined only once to the given class loader, which will no longer be true.