RFR: 8273935: (zipfs) Files.getFileAttributeView() throws UOE instead of returning null when view not supported

[Lance Andersen]

Hi all,

Please review this patch which addresses the issue where Zip FS will throw a UOE instead of returning null  when  Files.getFileAttributeView() is invoked and  the view not supported.

Mach5 tiers1 - tier3 are clean.

Best
Lance

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Commit messages:
 - Add Cleanup Method
 - adjust copyright
 - Files.getFileAttributeView() throws UOE instead of returning null when view not supported

Changes: https://git.openjdk.java.net/jdk/pull/5579/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5579&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273935
  Stats: 107 lines in 3 files changed: 103 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5579.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5579/head:pull/5579

PR: https://git.openjdk.java.net/jdk/pull/5579