RFR: 8347491: IllegalArgumentationException thrown by ThreadPoolExecutor doesn't have a useful message [v2]

[Viktor Klang]

> Seems sensible to improve this given that it can be tricky to figure out which parameter caused the exception to be thrown.

Viktor Klang has updated the pull request incrementally with one additional commit since the last revision:

  Updates the ThreadPoolExecutorTest.java to assert the exception messages added

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Changes:
  - all: https://git.openjdk.org/jdk/pull/23081/files
  - new: https://git.openjdk.org/jdk/pull/23081/files/10f59695..7cf05b5b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23081&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23081&range=00-01

  Stats: 151 lines in 2 files changed: 116 ins; 0 del; 35 mod
  Patch: https://git.openjdk.org/jdk/pull/23081.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23081/head:pull/23081

PR: https://git.openjdk.org/jdk/pull/23081