[jdk11u-dev] RFR: Merge jdk11u:master

[Goetz Lindenmaier]

Merge final build tag 11.0.15+ga from jdk11u to jdk11u-dev

-------------

Commit messages:
 - Merge
 - 8284920: Incorrect Token type causes XPath expression to return empty result
 - 8284548: Invalid XPath expression causes StringIndexOutOfBoundsException
 - 8282300: Throws NamingException instead of InvalidNameException after JDK-8278972
 - 8278972: Improve URL supports
 - 8278805: Enhance BMP image loading
 - 8278449: Improve keychain support
 - 8282397: createTempFile method of java.io.File is failing when called with suffix of spaces character
 - 8278356: Improve file creation
 - 8270504: Better Xpath expression handling
 - ... and 10 more: https://git.openjdk.java.net/jdk11u-dev/compare/7b846111...22dd1754

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1043&range=00.0
 - jdk11u:master: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1043&range=00.1

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/1043/files
  Stats: 3490 lines in 59 files changed: 2368 ins; 705 del; 417 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/1043.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/1043/head:pull/1043

PR: https://git.openjdk.java.net/jdk11u-dev/pull/1043