RFR: 8338380: Update TLSCommon/interop/AbstractServer to specify an interface to listen for connections [v2]

[Matthew Donovan]

> This is a small PR to extend the AbstractServer class in test/jdk/javax/net/ssl/TLSCommon/interop/ to enable users to specify a specific interface on which to listen for incoming connections. The default interface is now the loopback interface. The derived class, JdkServer, is also updated to use the interface specified in AbstractServer.

Matthew Donovan 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 three additional commits since the last revision:

 - fixed copyright and set backlog to 0(default)
 - Merge branch 'master' into 8338380
 - 8338380: Update TLSCommon/interop/AbstractServer to specify an interface to listen for connections

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Changes:
  - all: https://git.openjdk.org/jdk/pull/20581/files
  - new: https://git.openjdk.org/jdk/pull/20581/files/e018b30f..7af1e551

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20581&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20581&range=00-01

  Stats: 13940 lines in 361 files changed: 9329 ins; 2849 del; 1762 mod
  Patch: https://git.openjdk.org/jdk/pull/20581.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20581/head:pull/20581

PR: https://git.openjdk.org/jdk/pull/20581