tschatzl @ github

Since the OpenJDK 27 release is on the horizon I thought it would be time to discuss interesting changes in OpenJDK’s stop-the-world collectors in the HotSpot VM once more.

The OpenJDK project is about to release JDK 26 in a few days.

JDK 25 RC 1 is out, and as is custom by now, here is a brief overview of the changes to the stop-the-world collectors in OpenJDK for that release.

JDK 24 has been released a few weeks ago.

The Garbage First (G1) collector’s throughput sometimes trails that of other HotSpot VM collectors - by up to 20% (e.g.

Given that JDK 23 is in rampdown phase 2 this post is going to present you the usual brief look on changes to the stop-the-world collectors in OpenJDK.

Another JDK release, another version of a post in this series: this time JDK 22 GA is almost here and so I am going to entertain you with latest changes for the stop-the-world garbage collectors for OpenJDK for that release. ;) Overall I think this release

Recently I got questions about what Concurrent Undo Cycle messages in the logs mean - in this post I would like to explain this optimization and what it means for your application.

JDK 21 GA is on track - as well as this update for changes of the stop-the-world garbage collectors for OpenJDK for that release. ;) This release is going to be designated as an LTS release by most if not all OpenJDK distributions.

Yet another JDK release that is on track - JDK 20 GA is almost here.