RFR: 8283715: Update ObjectStreamClass to be final [v2]

Tue Mar 29 16:57:40 UTC 2022

On Tue, 29 Mar 2022 16:07:18 GMT, Stuart Marks <smarks at openjdk.org> wrote:

>> Pretty much just what it says.
>
> Stuart Marks has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Adjust nonfinal CSMs and rework error reporting in CheckCSMs.java test

Marked as reviewed by mchung (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8009