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fix(deps): update dependency org.jctools:jctools-core to v4.0.6#2656

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trask merged 1 commit intomainfrom
renovate/all-patch-versions
Feb 26, 2026
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fix(deps): update dependency org.jctools:jctools-core to v4.0.6#2656
trask merged 1 commit intomainfrom
renovate/all-patch-versions

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@renovate renovate bot commented Feb 26, 2026

This PR contains the following updates:

Package Change Age Confidence
org.jctools:jctools-core (source) 4.0.54.0.6 age confidence

Release Notes

JCTools/JCTools (org.jctools:jctools-core)

v4.0.6: Add VarHandle queues and other minor fixups

NOTE: This will be the last release with JDK6 bytecode for jctools-core. The next release will be 5.0.0 and will compile with the 1.8 target, allowing for method handles.

This release has 2 artifacts. The old jctools-core with the following changes:

  • Where plain access to field is used by queues, the field is not volatile and volatile access is done using Unsafe.
  • Use a generated ConcurrentCircularXXXQueue instead of hand rolled base classes in generated code.
  • Padding blocks formatting is improved in generated code.

The release introduces a new artifact, jctools-core-jdk11 which included generated VarHandle queues (padded and unpadded). These queues do not rely on Unsafe, and offer better performance than the AtomicFieldUpdater generated code. We expect many users will prefer these variants going forward to break their reliance on Unsafe.

The majority of the VarHandle work is a great contribution from @​amarziali , thanks!!!
We also thank @​franz1981 for his help reviewing and profiling the code.


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Copilot AI review requested due to automatic review settings February 26, 2026 00:44
@renovate renovate bot requested a review from a team as a code owner February 26, 2026 00:44
@renovate renovate bot added the dependencies Pull requests that update a dependency file label Feb 26, 2026
@renovate renovate bot review requested due to automatic review settings February 26, 2026 00:44
@jaydeluca
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i am a little confused by this one, i don't see this new 4.0.6 release anywhere

image image

@trask
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trask commented Feb 26, 2026

https://repo1.maven.org/maven2/org/jctools/jctools-core/4.0.6/

it is weird they didn't tag it in the repo though...

@laurit
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laurit commented Feb 26, 2026

there is a tag now https://github.com/JCTools/JCTools/releases/tag/v4.0.6

@trask trask added this pull request to the merge queue Feb 26, 2026
Merged via the queue into main with commit 4113061 Feb 26, 2026
35 of 37 checks passed
@trask trask deleted the renovate/all-patch-versions branch February 26, 2026 16:37
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3 participants