[AOT] -XX:AOTLibrary doesn't accept windows path

-XX:AOTLibrary used to specify aot-ed library doesn't accepts windows paths and fails with "error opening file: Can't find dependent libraries"

The error is thrown by open/src/hotspot/os/windows/os_windows.cp:os::dll_load
  1358 void * os::dll_load(const char *name, char *ebuf, int ebuflen) {
  1359 void * result = LoadLibrary(name);
  1360 if (result != NULL) {
  1361 // Recalculate pdb search path if a DLL was loaded successfully.
  1362 SymbolEngine::recalc_search_path();
  1363 return result;
  1364 }
  1365
  1366 DWORD errcode = GetLastError();
  1367 if (errcode == ERROR_MOD_NOT_FOUND) {
  1368 strncpy(ebuf, "Can't find dependent libraries", ebuflen - 1);
  1369 ebuf[ebuflen - 1] = '\0';
  1370 return NULL;
  1371 }

The cause is that windows LoadLibrary() doesn't accept path.


AOT JEP (http://openjdk.java.net/jeps/295) says:
"-XX:AOTLibrary=<file>
Specify a list of AOT library files. Separate libraries entries with colons (:) or comma (,)."

Also -XX:AOTLibrary works fine with paths on unix systems.

Looks like os_windows.cp:os::dll_load need to be fixed to accepts paths.