RFR: 8269466: Factor out the common code for initializing and starting internal VM JavaThreads [v2]

[David Holmes]

On Wed, 30 Jun 2021 15:54:12 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

>> David Holmes has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fixed copyright years in hpp files
>
> Hi David,
> 
> Changes look good to me.
> 
> Thanks,
> Patricio

Thanks for the reviews: @pchilano , @coleenp , @dcubed-ojdk , @sspitsyn , @vnkozlov

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PR: https://git.openjdk.java.net/jdk/pull/4629