JDK-8307393 : The SA lacks support for Generational ZGC
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: svc-agent
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2023-05-03
  • Updated: 2024-06-18
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8248912 - ZGC: serviceability/sa/TestJhsdbJstackMixed.java timed out
Relates :  
JDK-8268636 - ZGC: serviceability/sa/TestJmapCoreMetaspace.java fails with "ClassCastException: class sun.jvm.hotspot.oops.TypeArray cannot be cast to class sun.jvm.hotspot.oops.Instance"
Relates :  
JDK-8315646 - serviceability/sa/TestHeapDumpForInvokeDynamic.java fails with ZGC
Relates :  
JDK-8276539 - Some SA tests fails with ZGC
Relates :  
JDK-8270202 - ZGC: serviceability/sa/TestJmapCore.java fails with UnmappedAddressException
Description
The SA code for non-generational ZGC isn't guaranteed to work and the GC team does not maintain it. When implementing Generational ZGC it was decided to not add support for it in the SA.

This bug can be seen as a placeholder until someone decides to implement full support for Generational ZGC.