Review request 8154837: Class::getPackage with exploded modules when classes in modules defined to the boot loader

[Mandy Chung]

Webrev:
   http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8154837/webrev.00/

The module location from an exploded image is file URL rather than file path.  This issue can be reproduced with jdk/test/java/lang/Package/GetPackages.java on windows.

Mandy