--- old/src/hotspot/os/windows/os_windows.cpp	2017-11-09 14:14:22.960789590 -0800
+++ new/src/hotspot/os/windows/os_windows.cpp	2017-11-09 14:14:22.698792047 -0800
@@ -2918,8 +2918,13 @@
   assert(fd != -1, "File descriptor is not valid");
 
   HANDLE fh = (HANDLE)_get_osfhandle(fd);
+#ifdef _LP64
   HANDLE fileMapping = CreateFileMapping(fh, NULL, PAGE_READWRITE,
     (DWORD)(size >> 32), (DWORD)(size & 0xFFFFFFFF), NULL);
+#else
+  HANDLE fileMapping = CreateFileMapping(fh, NULL, PAGE_READWRITE,
+    0, (DWORD)size, NULL);
+#endif
   if (fileMapping == NULL) {
     if (GetLastError() == ERROR_DISK_FULL) {
       vm_exit_during_initialization(err_msg("Could not allocate sufficient disk space for Java heap"));