git: openjdk/mobile: 8236681: Shenandoah: Disable concurrent class unloading flag if no class unloading for the GC cycle

[duke]

Changeset: ee5729ac
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2020-01-07 08:53:37 +0000
URL:       https://git.openjdk.java.net/mobile/commit/ee5729ac

8236681: Shenandoah: Disable concurrent class unloading flag if no class unloading for the GC cycle

Reviewed-by: rkennke

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentRoots.cpp