--- old/src/hotspot/share/memory/metaspace.hpp	2017-10-10 12:02:48.757349370 +0900
+++ new/src/hotspot/share/memory/metaspace.hpp	2017-10-10 12:02:48.563345262 +0900
@@ -182,6 +182,7 @@
 #ifdef _LP64
   static void allocate_metaspace_compressed_klass_ptrs(char* requested_addr, address cds_base);
 #endif
+  static size_t calculate_min_metaspace_size();
 
  private: