RFR: 8212879: Make JVMTI TagMap table concurrent [v3]

[Kim Barrett]

On Tue, 3 Nov 2020 23:38:08 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Ok, so I'm not sure what to do with this:
>> 
>>  enum Phase { 
>>     // Serial phase.
>>     JVMTI_ONLY(jvmti)
>>     // Additional implicit phase values follow for oopstorages.
>>   `};`
>> 
>> I've removed the only thing in this enum.
>
>>Though it might be possible to go even further and eliminate WeakProcessorPhases as a thing separate from OopStorageSet.
> 
> This makes sense.  Can we file another RFE for this? I was sort of surprised by how much code was involved so I tried to find a place to stop deleting.

> Ok, so I'm not sure what to do with this:
> 
> enum Phase {
> // Serial phase.
> JVMTI_ONLY(jvmti)
> // Additional implicit phase values follow for oopstorages.
> `};`
> 
> I've removed the only thing in this enum.

Enums without any named enumerators are still meaningful types.  More so with scoped enums, but still with unscoped enums.

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PR: https://git.openjdk.java.net/jdk/pull/967