JDK-8166607 : G1 needs klass_or_null_acquire
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2016-09-23
  • Updated: 2021-02-05
  • Resolved: 2016-11-23
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JDK 8 JDK 9 Other
8u301Fixed 9 b150Fixed openjdk8u292Fixed
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Description
Some of the places where G1 uses klass_or_null really should be using klass_or_null_acquire, in order to ensure the successful read of the klass preceeds later reads that are dependent on it.