src/hotspot/os/windows/os_windows.cpp

*** 4392,4408 ****
    return ::_fdopen(fd, mode);
  }
  
  // Is a (classpath) directory empty?
  bool os::dir_is_empty(const char* path) {
!   WIN32_FIND_DATA fd;
!   HANDLE f = FindFirstFile(path, &fd);
    if (f == INVALID_HANDLE_VALUE) {
!     return true;
    }
    FindClose(f);
!   return false;
  }
  
  // create binary file, rewriting existing file if required
  int os::create_binary_file(const char* path, bool rewrite_existing) {
    int oflags = _O_CREAT | _O_WRONLY | _O_BINARY;
--- 4392,4447 ----
    return ::_fdopen(fd, mode);
  }
  
  // Is a (classpath) directory empty?
  bool os::dir_is_empty(const char* path) {
!   bool is_empty = false;
!   char* search_path = (char*)os::malloc(strlen(path) + 3, mtInternal);
!   if (search_path == NULL) {
!     errno = ENOMEM;
!     return false;
!   }
!   strcpy(search_path, path);
!   // Append "*", or possibly "\\*", to path
!   if (path[1] == ':' &&
!     (path[2] == '\0' ||
!     (path[2] == '\\' && path[3] == '\0'))) {
!     // No '\\' needed for cases like "Z:" or "Z:\"
!     strcat(search_path, "*");
!   }
!   else {
!     strcat(search_path, "\\*");
!   }
!   errno_t err = ERROR_SUCCESS;
!   wchar_t* wpath = create_unc_path(search_path, err);
!   if (err != ERROR_SUCCESS) {
!     if (wpath != NULL) {
!       destroy_unc_path(wpath);
!     }
!     os::free(search_path);
!     errno = err;
!     return false;
!   }
!   WIN32_FIND_DATAW fd;
!   HANDLE f = ::FindFirstFileW(wpath, &fd);
!   destroy_unc_path(wpath);
    if (f == INVALID_HANDLE_VALUE) {
!     is_empty = true;
!   } else {
!     is_empty = true;
!     while (is_empty && ::FindNextFileW(f, &fd)) {
!       // An empty directory contains only the current directory file
!       // and the previous directory file.
!       if ((wcscmp(fd.cFileName, L".") != 0) &&
!           (wcscmp(fd.cFileName, L"..") != 0)) {
!         is_empty = false;
!       }
      }
      FindClose(f);
!   }
!   os::free(search_path);
!   return is_empty;
  }
  
  // create binary file, rewriting existing file if required
  int os::create_binary_file(const char* path, bool rewrite_existing) {
    int oflags = _O_CREAT | _O_WRONLY | _O_BINARY;