Integrated: JDK-8269401: Merge "Exceptions" and "Errors" into "Exception Classes"

[Hannes Wallnöfer]

On Thu, 21 Oct 2021 09:30:34 GMT, Hannes Wallnöfer <hannesw at openjdk.org> wrote:

> This is a conceptually simple change to merge the "Exception" and "Error" classes into a single "Exception Class" group.
> 
> The only change that is not strictly related to the merge is the removal of unused type subsets and related methods in `TypeElementCatalog.java` and the use of `Collections.emptySortedSet()` as the default return value in the `allClasses` method (I made sure it is never modified).

This pull request has now been integrated.

Changeset: 7c996d57
Author:    Hannes Wallnöfer <hannesw at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/7c996d572cc10045b7f6bc301916dcbd349b6ef4
Stats:     303 lines in 19 files changed: 15 ins; 223 del; 65 mod

8269401: Merge "Exceptions" and "Errors" into "Exception Classes"

Reviewed-by: jjg

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PR: https://git.openjdk.java.net/jdk/pull/6061