RFE: https://bugs.openjdk.java.net/browse/JDK-8240948 Unfortunately, not much code can be eliminated from conc-mark, because Full GC (and Traversal?) share some of that code. Webrev: https://cr.openjdk.java.net/~shade/8240948/webrev.01/ Testing: hotspot_gc_shenandoah -- Thanks, -Aleksey