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Type: Enhancement
Resolution: Fixed
Priority: P3
Fix Version/s: 17
Affects Version/s: 13
Component/s: core-libs
Labels:
None

Subcomponent:
java.util.concurrent
Resolved In Build:
b05

This is a followup to JDK13 updates to refresh internal java.util.concurrent lock usages and support. Quoting internal documentation:
     * * ForkJoinTask now uses field "aux" to support blocking joins
     * and/or record exceptions, replacing reliance on builtin
     * monitors and side tables.
     * * Scans probe slots (vs compare indices), along with related
     * changes that reduce performance differences across most
     * garbage collectors, and reduce contention.
     * * Refactoring for better integration of special task types and
     * other capabilities that had been incrementally tacked on. Plus
     * many minor reworkings to improve consistency.

csr for

JDK-8246587 ForkJoin updates

Closed

relates to

JDK-8284504 ForkJoinPool never terminates if shutdownNow() is called at the wrong moment.

Open

JDK-8285638 Unexpected change of behavior of ForkJoin common pool clearing thread locals

Open

JDK-8229253 forkjoin/FJExceptionTableLeak.java fails "AssertionError: failed to satisfy condition"

Resolved

JDK-8259518 Fixes for rare test failures due to 8246585: ForkJoin updates

Closed

JDK-8259800 timeout in tck test testForkJoin(ForkJoinPool8Test)

Closed

JDK-8274349 ForkJoinPool.commonPool() does not work with 1 CPU

Closed

JDK-8315740 ForkJoinPool starvation in commonPool/newWorkStealingPool since java 17

Closed

JDK-8299768 No. of running threads may exceed parallelism when using timed ForkJoinTask.get

Closed

links to

Commit openjdk/jdk/5cfa8c94

Review openjdk/jdk/1646

(4 relates to, 2 links to)

Assignee:: Martin Buchholz

Reporter:: Doug Lea

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2020-06-04 03:40

Updated:: 3 days ago 10:49

Resolved:: 2021-01-09 12:58

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