JDK-8363996 : Remove UseCompressedClassPointers
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 26
  • Priority: P4
  • Status: New
  • Resolution: Unresolved
  • Submitted: 2025-07-24
  • Updated: 2025-07-28
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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8350753 - Deprecate UseCompressedClassPointers
Sub Tasks
JDK-8363998 :  
Implement Compressed Class Pointers for 32-bit - New
Description
UseCompressedClassPointers, deprecated with JDK 25 (JDK-8350753), should be removed, and its maintaining code removed as well.

One roadblock before this is the ongoing existence of the two remaining 32-bit platforms: arm32 and zero 32bit. 32-bit platforms rely on -UseCompressedClassPointers, so removing that code will break 32-bit. We need to figure out what to do with those first.