RFR: 8294985: SSLEngine throws IAE during parsing of X500Principal [v21]

[Kevin Driver]

> Fixes: [JDK-8294985](https://bugs.openjdk.org/browse/JDK-8294985)

Kevin Driver has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 23 additional commits since the last revision:

 - Merge branch 'master' of github.com:openjdk/jdk into JDK-8294985
 - run tests with othervm
 - working testcase for CertificateRequest for TLS1.2
 - new version of second test
 - initial commit of second test
 - reintroduce bug id to test header
 - Merge remote-tracking branch 'upstream/master' into JDK-8294985
 - additional code review comments
 - rename class and remove bug id from test header
 - removing block that isn't reached
 - ... and 13 more: https://git.openjdk.org/jdk/compare/2fcd42f3...a0bfd0c7

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13466/files
  - new: https://git.openjdk.org/jdk/pull/13466/files/b1382e57..a0bfd0c7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13466&range=20
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13466&range=19-20

  Stats: 28953 lines in 542 files changed: 21073 ins; 3066 del; 4814 mod
  Patch: https://git.openjdk.org/jdk/pull/13466.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13466/head:pull/13466

PR: https://git.openjdk.org/jdk/pull/13466