--- old/src/hotspot/share/gc/z/zPhysicalMemory.hpp	2020-05-18 16:30:52.970964900 +0200
+++ new/src/hotspot/share/gc/z/zPhysicalMemory.hpp	2020-05-18 16:30:52.712956542 +0200
@@ -78,6 +78,8 @@
   void unmap_view(const ZPhysicalMemory& pmem, uintptr_t addr) const;
 
 public:
+  ZPhysicalMemoryManager(size_t max_capacity);
+
   bool is_initialized() const;
 
   void warn_commit_limits(size_t max) const;