JDK-8222206 : Release Note: Possible Performance Regression in JDK 8 Updates 202, 211, and 212
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 8u212,8u221
  • Priority: P4
  • Status: Closed
  • Resolution: Delivered
  • Submitted: 2019-04-09
  • Updated: 2020-09-14
  • Resolved: 2019-04-15
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Due to a known issue with the fix for JDK-8155635, introduced in JDK 8 update 202, some applications may experience a performance regression (lower throughput and/or higher CPU consumption) when migrating from earlier releases. Examples of code that might trigger this regression include heavy use of `sun.misc.Unsafe` and the Reflection API. This performance regression is addressed in JDK-8221355.