[jdk8u-dev] RFR: 8283606: Tests may fail with zh locale on MacOS

[Nagata-Haruhito]

I would like to backport JDK-8283606 to JDK8u. This fix cannot be applied cleanly.
- jdk8u contains only 1 test fixed in JDK-8283606
  (hotspot/test/runtime/classFileParserBug/TestEmptyBootstrapMethodsAttr.java)
- jdk8u contains 2 tests fixed in JDK-8299383 (backported to jdk11u)
  (langtools/test/tools/javadoc/6964914/TestStdDoclet.java, and
   langtools/test/tools/javadoc/6964914/TestUserDoclet.java)
- Need to add more tests that are removed in latest version and have same problem.
  (langtools/test/tools/javah/T6893943.java)

I tried to run these tests on Japanese Windows 10, and all tests are passed.

But, I am not a author, so need a sponsor.
Would you plese review this fix?

Thank you.

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Commit messages:
 - Backport 7d545084f45af44386cb38172fd783f889a8c4e7

Changes: https://git.openjdk.org/jdk8u-dev/pull/223/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=223&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8283606
  Stats: 14 lines in 4 files changed: 8 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/223.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/223/head:pull/223

PR: https://git.openjdk.org/jdk8u-dev/pull/223