RFR: 8312491: Update Classfile API snippets and examples [v11]

[Jan Lahoda]

On Fri, 1 Sep 2023 12:13:05 GMT, Adam Sotona <asotona at openjdk.org> wrote:

>> This pull request updates Classfile API snippets and examples and adds missing javadoc.
>> 
>> Please review.
>> 
>> Thanks,
>> Adam
>
> Adam Sotona has updated the pull request incrementally with one additional commit since the last revision:
> 
>   added notes to attributes

Looks like an improvement to me!

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Marked as reviewed by jlahoda (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14968#pullrequestreview-1610489626