RFR: 8252537: Updated @exception with @throws [v2]

[Vipin Sharma]

> Updated @exception with @throws for core-libs, it fixes all open sub-tasks of JDK-8252536.
> 
> Open Subtasks part of this fix are:
> 1. JDK-8252537
> 2. JDK-8252539
> 3. JDK-8252540
> 4. JDK-8252541
> 
> Previous conversation on this:
> https://mail.openjdk.java.net/pipermail/core-libs-dev/2020-September/068540.html

Vipin Sharma 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:

 - JDK-8252537 Updated @exception with @throws
 - JDK-8252537 Updated @exception with @throws
 - JDK-8252537 Updated @exception with @throws

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/95/files
  - new: https://git.openjdk.java.net/jdk/pull/95/files/a84158ac..e9953466

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=95&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=95&range=00-01

  Stats: 20314 lines in 606 files changed: 10333 ins; 7230 del; 2751 mod
  Patch: https://git.openjdk.java.net/jdk/pull/95.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/95/head:pull/95

PR: https://git.openjdk.java.net/jdk/pull/95