New candidate JEP: 498: Warn upon Use of Memory-Access Methods in sun.misc.Unsafe

Mark Reinhold mark.reinhold at oracle.com
Tue Nov 12 14:55:19 UTC 2024


https://openjdk.org/jeps/498

  Summary: Issue a warning at run time on the first occasion that any
  memory-access method in sun.misc.Unsafe is invoked.  All of these
  unsupported methods were terminally deprecated in JDK 23.  They have
  been been superseded by standard APIs, namely the VarHandle API
  (JEP 193, JDK 9) and the Foreign Function & Memory API (JEP 454,
  JDK 22).  We strongly encourage library developers to migrate from
  sun.misc.Unsafe to supported replacements, so that applications can
  migrate smoothly to modern JDK releases.

- Mark


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