RFR: 8133816: Display extra SSLServerSocket info in debug mode [v2]

[Weibing Xiao]

> Log the debugging info for server cipher suites when setting javax.net.debug == ssl, handshake.

Weibing Xiao has updated the pull request incrementally with one additional commit since the last revision:

  add or remove the blank line according to the comments

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Changes:
  - all: https://git.openjdk.org/jdk/pull/9731/files
  - new: https://git.openjdk.org/jdk/pull/9731/files/360b8ed6..68a12183

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9731&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9731&range=00-01

  Stats: 3 lines in 1 file changed: 2 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/9731.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9731/head:pull/9731

PR: https://git.openjdk.org/jdk/pull/9731