RFR: Here are some Thread cleanup patches

[Martin Buchholz]

On Tue, Mar 27, 2018 at 4:42 PM, David Holmes <david.holmes at oracle.com>
wrote:

> Hi Martin,
>
> 8200123: Replace Thread.init with telescoping constructor
>> http://cr.openjdk.java.net/~martin/webrevs/jdk/Thread-init/
>> https://bugs.openjdk.java.net/browse/JDK-8200123
>>
>
> Looks fine - for some reason I thought we had a direct VM call to init()
> but we don't.
>
> What is the effect of @stable? I'm just thinking about any possible impact
> on initialization order.
>

@Stable final
just means the VM can really truly assume the value will only ever change
from the default value once.
Like a per-field -XX:+TrustFinalNonStaticFields
http://www.progdoc.de/papers/JET2015/How_final_is_final.pdf
http://hg.openjdk.java.net/jdk/jdk/file/b6671a111395/src/java.base/share/classes/jdk/internal/vm/annotation/Stable.java