[9] RFR of 8132497: (fs) FileSystems.newFileSystem(URI, ..) doesn't handle UOE thrown by provider

[Brian Burkhalter]

Please review at your convenience.

Issue:	https://bugs.openjdk.java.net/browse/JDK-8132497
Webrev:	http://cr.openjdk.java.net/~bpb/8132497/webrev.00/

Summary: Handle UOEs in newFileSystem(URI,...) similarly to as done in newFileSystem(Path path, ClassLoader loader).

The jdk_nio regression tests passed on the usual default array of test systems.

Thanks,

Brian