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  1. JDK
  2. JDK-8256011

Shenandoah: Don't resurrect finalizably reachable objects

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    • gc
    • b25
    • generic
    • generic

    Description

      In the weak-LRB we currently return referents when it is 'marked', that is when it's either reachable strongly or through a finalizable object. This means a finalizable object can be resurrected by Reference.get(), which is wrong. Only truly strongly reachable objects should be returned by Reference.get() during weak-reference-processing.

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          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. JDK-8256106 Bypass intrinsic/barrier when calling Reference.get() from Finalizer

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8269897 Shenandoah: Resolve UNKNOWN access strength, where possible

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8255999 Shenandoah: Invoke native-LRB only on non-strong refs, again

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8256006 Shenandoah: Exam and update uses of ShenandoahMarkContext.is_marked()

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • New

          Enhancement - null JDK-8254315 Shenandoah: Concurrent weak reference processing

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          links to

          Commit Commit openjdk/jdk/b0c28fad

          Review Review openjdk/jdk/1109

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              rkennke Roman Kennke
              rkennke Roman Kennke
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                Updated:
                Resolved: