RFR: 8349121: SSLParameters.setApplicationProtocols() ALPN example could be clarified [v2]

[Bradford Wetmore]

> Update and clarify the sample code.
> 
> Docs only, no additional testing other than verifying javadoc is correctly output.

Bradford Wetmore 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 two additional commits since the last revision:

 - Merge branch 'master' into JDK-8349121
 - 8349121: SSLParameters.setApplicationProtocols() ALPN example could be clarified

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23379/files
  - new: https://git.openjdk.org/jdk/pull/23379/files/ac7a6cff..e5da45c1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23379&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23379&range=00-01

  Stats: 8485 lines in 159 files changed: 1806 ins; 4505 del; 2174 mod
  Patch: https://git.openjdk.org/jdk/pull/23379.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23379/head:pull/23379

PR: https://git.openjdk.org/jdk/pull/23379