[lworld] RFR: 8254797: [Development] Define & apply annotation jdk.internal.ValueBased

[Roger Riggs]

On Wed, 21 Oct 2020 17:01:21 GMT, Mandy Chung <mchung at openjdk.org> wrote:

>> Define a JDK-internal annotation, jdk.internal.ValueBased, which indicates that a class or interface is value-based, per: java/lang/doc-files/ValueBased.html
>> 
>> (The switch of the compiler from the existing java.lang.ValueBased to jdk.internal.ValueBased will occur separately).
>> 
>> Apply the annotation wherever existing documentation references ValueBased.html, including:
>> - The primitive wrapper classes in java.lang;
>> - The class java.lang.Runtime.Version;
>> - The "optional" classes in java.util: Optional, OptionalInt, OptionalLong, and OptionalDouble;
>> - Many classes in the java.time API: Instant, LocalDate, LocalTime, LocalDateTime, ZonedDateTime, ZoneId, OffsetTime, OffsetDateTime, ZoneOffset, Duration, Period, Year, YearMonth, and MonthDay, and, in java.time.chrono: MinguoDate, HijrahDate, JapaneseDate, and ThaiBuddhistDate;
>> - The interface java.lang.ProcessHandle and its implementation classes;
>> - and an initial set of other classes
>> 
>> The CSR for these changes will occur *after* the prototyping of javac and the VM runtime is working.
>
> Looks like Roger pushed to the wrong branch.  It's supposed to push to jep390 branch.

Yep, I didn't change the pull-down when creating the PR.
Please review...  https://github.com/openjdk/valhalla/pull/235

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PR: https://git.openjdk.java.net/valhalla/pull/233