RFR: JDK-8261969: SNIHostName should check if the encoded hostname conform to RFC 3490 [v3]

[John Jiang]

> Similar to the constructor SNIHostName(String hostname), the constructor SNIHostName(byte[] encoded) also needs to check if the encoded hostname conform to RFC 3490.

John Jiang has updated the pull request incrementally with one additional commit since the last revision:

  Throw RuntimeException instead of Exception

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2639/files
  - new: https://git.openjdk.java.net/jdk/pull/2639/files/35041c54..5801cf3f

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2639&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2639&range=01-02

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2639.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2639/head:pull/2639

PR: https://git.openjdk.java.net/jdk/pull/2639