src/hotspot/share/gc/shenandoah/shenandoahTraversalGC.cpp

rev 58345 : 8240873: Shenandoah: Short-cut arraycopy barriers

*** 314,323 ****
--- 314,324 ----
  void ShenandoahTraversalGC::prepare_regions() {
    size_t num_regions = _heap->num_regions();
    ShenandoahMarkingContext* const ctx = _heap->marking_context();
    for (size_t i = 0; i < num_regions; i++) {
      ShenandoahHeapRegion* region = _heap->get_region(i);
+     region->set_update_watermark(region->top());
      if (_heap->is_bitmap_slice_committed(region)) {
        if (_traversal_set.is_in(i)) {
          ctx->capture_top_at_mark_start(region);
          region->clear_live_data();
          assert(ctx->is_bitmap_clear_range(region->bottom(), region->end()), "bitmap for traversal regions must be cleared");