RFR: 8294985: SSLEngine throws IAE during parsing of X500Principal [v16]

[Kevin Driver]

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

Kevin Driver has updated the pull request incrementally with one additional commit since the last revision:

  removing block that isn't reached

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13466/files
  - new: https://git.openjdk.org/jdk/pull/13466/files/d4ffde32..40a35bc1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13466&range=15
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13466&range=14-15

  Stats: 16 lines in 1 file changed: 0 ins; 16 del; 0 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