RFR: 8065422: Trailing dot in hostname causes TLS handshake to fail with SNI disabled [v2]

[Xue-Lei Andrew Fan]

> A hostname in an URL ending with a dot is valid (See RFC 1034).  However, it is not a valid SNI hostname.  The ending dot should be ignored while checking the hostname with SNI or the name in a X.509 certificate.
> 
> The update could be verified with jshell.
> $ $JDK_HOME/bin/jshell
> jshell> URL url = new URL("https://www.google.com./");
> jshell> URLConnection conn = url.openConnection();
> jshell> conn.connect();

Xue-Lei Andrew Fan has updated the pull request incrementally with one additional commit since the last revision:

  Add regression test with customized hosts

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7205/files
  - new: https://git.openjdk.java.net/jdk/pull/7205/files/3c94dfc5..fe3e5f6b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7205&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7205&range=00-01

  Stats: 596 lines in 2 files changed: 596 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7205.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7205/head:pull/7205

PR: https://git.openjdk.java.net/jdk/pull/7205