RFR: 8338894: Deprecate jhsdb debugd for removal [v3]

[Kevin Walls]

> Deprecation annotations and warnings on starting the tool(s).
> Handle man page in a separate issue.

Kevin Walls has updated the pull request incrementally with two additional commits since the last revision:

 - --connect message
 - Test updates for --connect

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/20830/files
  - new: https://git.openjdk.org/jdk/pull/20830/files/eb0ad9e8..856f0e91

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20830&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20830&range=01-02

  Stats: 43 lines in 6 files changed: 29 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/20830.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20830/head:pull/20830

PR: https://git.openjdk.org/jdk/pull/20830