RFR: 8347840: Fix testlibrary compilation warnings [v3]

[Leonid Mesnik]

On Thu, 16 Jan 2025 07:09:46 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Leonid Mesnik has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   revert change
>
> test/lib/jdk/test/lib/thread/VThreadPinner.java line 97:
> 
>> 95:      * virtual thread then it invokes the task directly.
>> 96:      */
>> 97:     @SuppressWarnings("unchecked")
> 
> If you change the code to the follow, same in VThreadRunner then it would avoid the the SW on the method and avoid the other change you have to VThreadRunner.
> 
>             @SuppressWarnings("unchecked")
>             var x = (X) ex;
>             throw x;

Thanks!

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PR Review Comment: https://git.openjdk.org/jdk/pull/23143#discussion_r1918978915