JDK-8025305 : Cleanup CardTableModRefBS usage in G1
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs25
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2013-09-24
  • Updated: 2014-10-15
  • Resolved: 2013-09-27
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JDK 7 JDK 8 Other
7u60Fixed 8Fixed hs25Fixed
CardTableModRefBS contains a bunch of G1 specific code.
G1CollectedHeap has two pointers to the same BarrierSet instance and has a lot of downcasts from BarrierSet to CardTableModRefBS, but G1 will only ever work with G1SATBCardTableModRefBS.

The fix for JDK-8014555 will be much cleaner if we move some G1 specific code from CardTableModRefBS to G1SATBCardTableModRefBS.
critical request labels belong on master bug.Fixing this one up.