Welcome to the Shenandoah Project!
Shenandoah is an ultra-low pause time garbage collector that reduces GC pause times by performing more garbage collection work concurrently with the running Java program. CMS and G1 both perform concurrent marking of live objects. Shenandoah adds concurrent compaction.
Adopt OpenJDK is building Shenandoah on a regular basis, if you like to try Shenandoah you can find the latest builds here: