RFR: 8352922: Refactor client classes javadoc to use @throws instead of @exception

[Sergey Bylokhov]

Prevailing JDK coding practices use @throws rather than @exception.
Refactored javadoc in client code to follow this convention, similar requests in the past https://github.com/openjdk/jdk/pull/7675 and https://github.com/openjdk/jdk/pull/7644.

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Commit messages:
 - Refactor client classes javadoc to use @throws instead of @exception

Changes: https://git.openjdk.org/jdk/pull/24239/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24239&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8352922
  Stats: 14 lines in 10 files changed: 0 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/24239.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24239/head:pull/24239

PR: https://git.openjdk.org/jdk/pull/24239