JDK-8338383 : Implement JEP 491: Synchronize Virtual Threads without Pinning
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2024-08-14
  • Updated: 2025-11-06
  • Resolved: 2024-11-12
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JDK 24
24 b24Fixed
Related Reports
Blocks :  
JDK-8343039 - Remove jdk.internal.misc.InternalLock and usages from java.io
CSR :  
JDK-8338813 - Implement JEP 491: Synchronize Virtual Threads without Pinning
Duplicate :  
JDK-8339459 - A virtualThread is blocked forever in synchronized block
Duplicate :  
JDK-8320323 - ObjectWaiter queue for ObjectMonitors don't support virtual threads
Duplicate :  
JDK-8320320 - Make ObjectMonitor owner field the ThreadID
Relates :  
JDK-8350412 - [21u] AArch64: Ambiguous frame layout leads to incorrect traces in JFR
Relates :  
JDK-8357406 - Remove usages of jdk.tracePinnedThreads system property from httpclient tests
Relates :  
JDK-8344917 - Fix recent NULL usage backsliding
Relates :  
JDK-8337395 - JEP 491: Synchronize Virtual Threads without Pinning
Relates :  
JDK-8320320 - Make ObjectMonitor owner field the ThreadID
Relates :  
JDK-8369238 - Allow virtual thread preemption on some common class initialization paths
Relates :  
JDK-8344924 - Default CA certificates loaded despite request to use custom keystore
Relates :  
JDK-8344595 - State transitions in internal VirtualThread comment needs to be updated
Relates :  
JDK-8344935 - [ubsan]: javaThread.hpp:1241:52: runtime error: load of value 9831830, which is not a valid value for type 'freeze_result'
Relates :  
JDK-8345543 - Test serviceability/jvmti/vthread/StopThreadTest/StopThreadTest.java failed: expected JVMTI_ERROR_OPAQUE_FRAME instead of: 0
Relates :  
JDK-8344199 - Incorrect excluded field value set by getEventWriter intrinsic
Description
JEP implementation.
Comments
Changeset: 78b80150 Branch: master Author: Patricio Chilano Mateo <pchilanomate@openjdk.org> Date: 2024-11-12 15:23:48 +0000 URL: https://git.openjdk.org/jdk/commit/78b80150e009745b8f28d36c3836f18ad0ca921f
12-11-2024
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/21565 Date: 2024-10-17 14:28:30 +0000
18-10-2024
Moving to hotspot/runtime so we have a non-empty subcomponent and the RFE ends up on trackers.
28-08-2024