diff -r 3aaaa5370999 -r 840e26123940 src/hotspot/share/memory/filemap.hpp
--- a/src/hotspot/share/memory/filemap.hpp	Mon Apr 30 13:40:39 2018 -0700
+++ b/src/hotspot/share/memory/filemap.hpp	Mon Apr 30 16:59:05 2018 -0400
@@ -115,7 +115,7 @@
     int    _obj_alignment;            // value of ObjectAlignmentInBytes
     address _narrow_oop_base;         // compressed oop encoding base
     int    _narrow_oop_shift;         // compressed oop encoding shift
-    bool   _compact_strings;          // value of CompactStrings
+    bool    _compact_strings;         // value of CompactStrings
     uintx  _max_heap_size;            // java max heap size during dumping
     Universe::NARROW_OOP_MODE _narrow_oop_mode; // compressed oop encoding mode
     int     _narrow_klass_shift;      // save narrow klass base and shift
@@ -272,6 +272,7 @@
   static void stop_sharing_and_unmap(const char* msg);
 
   static void allocate_shared_path_table();
+  static void check_nonempty_dir_in_shared_path_table();
   bool validate_shared_path_table();
 
   static SharedClassPathEntry* shared_path(int index) {