RFR: 8349348: Refactor ClassLoaderDeadlock.sh and Deadlock.sh to run fully in java [v3]

[Mikhail Yankelevich]

> Refactor the following to run fully in java:
> test/java/security//Security/ClassLoaderDeadlock/ClassLoaderDeadlock.sh
> test/java/security//Security/ClassLoaderDeadlock/Deadlock.sh

Mikhail Yankelevich has updated the pull request incrementally with one additional commit since the last revision:

  Jaikiran's comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23440/files
  - new: https://git.openjdk.org/jdk/pull/23440/files/92de4d99..e1056f95

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23440&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23440&range=01-02

  Stats: 4 lines in 2 files changed: 0 ins; 2 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23440.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23440/head:pull/23440

PR: https://git.openjdk.org/jdk/pull/23440