RFR: 8342303: Segfault in update_inherited_vtable: AppCDS, old bytecode, and redefineClasses [v7]

[Ioi Lam]

On Fri, 1 Nov 2024 20:31:41 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

>> A simple fix to avoid referencing invalid vtable and itable entires in `InstanceKlass::restore_unshareable_info` if a class is not linked during CDS dump time.
>> 
>> Passed tiers 1 - 4 testing.
>> 
>> ---------
>> ### Progress
>> - [ ] Change must be properly reviewed (1 review required, with at least 1 [Reviewer](https://openjdk.org/bylaws#reviewer))
>> - [x] Change must not contain extraneous whitespace
>> - [x] Commit message must refer to an issue
>> 
>> 
>> 
>> ### Reviewing
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>> `$ git checkout pull/21667`
>> 
>> Update a local copy of the PR: \
>> `$ git checkout pull/21667` \
>> `$ git pull https://git.openjdk.org/jdk.git pull/21667/head`
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>
> Calvin Cheung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove extra import and "@build" entries

LGTM

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Marked as reviewed by iklam (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21667#pullrequestreview-2414525381