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

rev 60500 : 8251359: Shenandoah: filter null oops before calling enqueue/SATB barrier

*** 1323,1333 ****
    }
  }
  
  // Keep alive an object that was loaded with AS_NO_KEEPALIVE.
  void ShenandoahHeap::keep_alive(oop obj) {
!   if (is_concurrent_mark_in_progress()) {
      ShenandoahBarrierSet::barrier_set()->enqueue(obj);
    }
  }
  
  void ShenandoahHeap::heap_region_iterate(ShenandoahHeapRegionClosure* blk) const {
--- 1323,1333 ----
    }
  }
  
  // Keep alive an object that was loaded with AS_NO_KEEPALIVE.
  void ShenandoahHeap::keep_alive(oop obj) {
!   if (is_concurrent_mark_in_progress() && !CompressedOops::is_null(obj)) {
      ShenandoahBarrierSet::barrier_set()->enqueue(obj);
    }
  }
  
  void ShenandoahHeap::heap_region_iterate(ShenandoahHeapRegionClosure* blk) const {