RFR: 8233674: JarURLConnection.getJarFile throws Exception if some process is holding the file

[Masanori Yano]

Could you please review the 8233674 bug fixes?
This problem is caused by the antivirus software opening the file for a short time, so CreateFile() should be retried.

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Commit messages:
 - 8233674: JarURLConnection.getJarFile throws Exception if some process is holding the file

Changes: https://git.openjdk.java.net/jdk/pull/5460/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5460&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8233674
  Stats: 299 lines in 3 files changed: 261 ins; 12 del; 26 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5460.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5460/head:pull/5460

PR: https://git.openjdk.java.net/jdk/pull/5460