[jdk8u-dev] RFR: Merge jdk8u:master

[Andrew John Hughes]

Merge jdk8u452-ga

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Commit messages:
 - Merge jdk8u:master
 - 8353433: XCG currency code not recognized in JDK 8u
 - 8347847: Enhance jar file support
 - 8343007: Enhance Buffered Image handling
 - 8342562: Enhance Deflater operations
 - 8338430: Improve compiler transformations
 - 8337692: Better TLS connection support
 - 8339810: Clean up the code in sun.tools.jar.Main to properly close resources and use ZipFile during extract
 - 8309841: Jarsigner should print a warning if an entry is removed
 - 8337494: Clarify JarInputStream behavior
 - ... and 2 more: https://git.openjdk.org/jdk8u-dev/compare/5b97474a...9e57ec42

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/jdk8u-dev/pull/647/files
  Stats: 305 lines in 13 files changed: 226 ins; 25 del; 54 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/647.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/647/head:pull/647

PR: https://git.openjdk.org/jdk8u-dev/pull/647