Hi, This goes to 9, and it matches what is done in 8u: http://cr.openjdk.java.net/~shade/shenandoah/jdk9-8u/expose-closures/webrev.01/ This way, closures code is identical in 8u and 9. Checked that inlining still works fine in 9. Testing: hotspot_gc_shenandoah, eyeballing profiles Thanks, -Aleksey