src/share/vm/classfile/sharedPathsMiscInfo.hpp

*** 102,111 ****
--- 102,126 ----
    // The path must not exist at run-time
    void add_nonexist_path(const char* path) {
      add_path(path, NON_EXIST);
    }
  
+   // The path must exist and have required size and modification time
+   void add_required_file(const char* path) {
+     add_path(path, REQUIRED);
+ 
+     struct stat st;
+     if (os::stat(path, &st) != 0) {
+       assert(0, "sanity");
+ #if INCLUDE_CDS
+       ClassLoader::exit_with_path_failure("failed to os::stat(%s)", path); // should not happen
+ #endif
+     }
+     write_time(st.st_mtime);
+     write_long(st.st_size);
+   }
+ 
    // The path must exist, and must contain exactly <num_entries> files/dirs
    void add_boot_classpath(const char* path) {
      add_path(path, BOOT);
    }
    int write_jint(jint num) {