JDK-8284953 : Fix stale comments in G1CollectedHeap::ref_processing_init
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 19
  • Priority: P4
  • Status: New
  • Resolution: Unresolved
  • Submitted: 2022-04-18
  • Updated: 2022-04-19
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tbdUnresolved
Related Reports
Relates :  
JDK-8201492 - Properly implement non-contiguous generations for Reference discovery
Description
ref_processing_init has a block comment purporting to describe how reference processing in G1 works.  But there are some parts of this comment that are out of date.

It says the ref processors need to "span" the entire heap.  But that's no longer true because of JDK-8201492.

For the STW reference processor it says full GC discovery and processing are non-MT, but that's not been true for some time.