--- a/src/hotspot/share/gc/z/zHeap.hpp	Fri Jun 15 13:31:20 2018 +0200
+++ b/src/hotspot/share/gc/z/zHeap.hpp	Fri Jun 15 13:31:27 2018 +0200
@@ -124,6 +124,7 @@
   uintptr_t alloc_object(size_t size);
   uintptr_t alloc_object_for_relocation(size_t size);
   void undo_alloc_object_for_relocation(uintptr_t addr, size_t size);
+  bool is_alloc_stalled() const;
   void check_out_of_memory();
 
   // Marking