On 10/13/2017 02:13 PM, Roland Westrelin wrote: > > http://cr.openjdk.java.net/~roland/shenandoah/caspatternmatching/webrev.00/ Ugh! This does not look obviously idempotent if !UseShenandoahGC. Let's think how to minimize the change. Let me try a thing... -Aleksey