--- a/src/hotspot/share/gc/z/zArray.hpp	Mon Mar 18 11:50:40 2019 +0100
+++ b/src/hotspot/share/gc/z/zArray.hpp	Mon Mar 18 11:50:40 2019 +0100
@@ -51,6 +51,7 @@
   T at(size_t index) const;
 
   void add(T value);
+  void transfer(ZArray<T>* from);
   void clear();
 };