RFR: 8201327: Make Sensor deeply immutably thread safe

[Martin Buchholz]

On Mon, Apr 9, 2018 at 7:13 PM, Martin Buchholz <martinrb at google.com> wrote:

>
>
> On Mon, Apr 9, 2018 at 1:25 PM, Chris Hegarty <chris.hegarty at oracle.com>
> wrote:
>
>>
>> > except maybe the "initially false" and "initially 0" comments as they
>> are just documenting the default values and don't add anything.
>>
>> Yeah, I’ve done this before too, especially when removing default values
>> ( as if to prevent them from inadvertently creeping back in ).
>>
>
> If only there was standard concise wording for "intentionally using the
> field's default value, which is slightly more efficient and slightly more
> theoretically thread-safe, even though slightly less readable" ...
>
> // VM-initialized to false
>

I'm committing with the hinting wording

// VM-initialized to false
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