RFR: 8257700: Add logging for sealed classes in JVM_GetPermittedSubclasses [v2]

[Harold Seigel]

On Tue, 15 Dec 2020 17:33:33 GMT, Lois Foltan <lfoltan at openjdk.org> wrote:

>> Harold Seigel has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8257700: Add logging for sealed classes in JVM_GetPermittedSubclasses
>
> Looks good, one minor comment.
> Lois

Please review this updated webrev.  It contains the change suggested by Lois.  Here's sample output from the added logging:

[0.355s][trace][class,sealed] Calling GetPermittedSubclasses for sealed type NoLoadSubclasses
[0.355s][trace][class,sealed]  - sealed class has 2 permitted subclasses
[0.355s][trace][class,sealed]  - [1] = ExistingClassFile
[0.355s][trace][class,sealed]  - resolution of permitted subclass I/Dont/Exist/Either failed: java.lang.NoClassDefFoundError: I/Dont/Exist/Either
[0.355s][trace][class,sealed]  - compacting array from length 2 to 1

Thanks, Harold

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PR: https://git.openjdk.java.net/jdk/pull/1780