RFR: JDK-8269401: Merge "Exceptions" and "Errors" into "Exception Classes" [v2]

[Hannes Wallnöfer]

On Thu, 21 Oct 2021 11:09:10 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

>> Hannes Wallnöfer has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   JDK-8269401: Include Throwable in exception classes
>
> src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/SummaryListWriter.java line 66:
> 
>> 64:             case ENUM -> "doclet.Enums";
>> 65:             case EXCEPTION_CLASS -> "doclet.ExceptionClasses";
>> 66:             case ANNOTATION_TYPE -> "doclet.Annotation_Types";
> 
> (Possibly unrelated to this PR.) This kind of inconsistency in naming is surprising. Even more surprising is the fact that these two resources live in different files. While `ExceptionClasses` lives in doclet.properties, `Annotation_Types` lives in standard.properties. To confuse things even further, `AnnotationType` and `ExceptionClass` live in the same file, doclet.properties.

Interesting: We have property `doclet.Annotation_Types` (with underscore) defined in `standard.properties` and `doclet.AnnotationTypes` (without underscore) in `doclets.properties. Both properties have the same value. Smells like another cleanup task.

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