RFR: 8266846: Add java.time.InstantSource

[Stephen Colebourne]

On Fri, 14 May 2021 07:19:03 GMT, Anthony Vanelverdinghe <github.com+15714253+anthonyvdotbe at openjdk.org> wrote:

>> 8266846: Add java.time.InstantSource
>
> src/java.base/share/classes/java/time/Clock.java line 513:
> 
>> 511:      * {@link System#currentTimeMillis()} or equivalent.
>> 512:      */
>> 513:     static final class SystemInstantSource implements InstantSource, Serializable {
> 
> Is it possible to declare this as an enum? As doing so would simplify its implementation.

My feeling is that in this case it is better to keep control of the kind of class being used.

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PR: https://git.openjdk.java.net/jdk/pull/4016