RFR: 8253899: Make IsClassUnloadingEnabled signature match specification

[David Holmes]

On Fri, 2 Oct 2020 06:59:13 GMT, Vladimir Kempik <vkempik at openjdk.org> wrote:

>> Vladimir, it looks good to me.
>
>> David,
>> I think, Vladimir is referring to the JVMTI extension mechanism spec:
>> https://docs.oracle.com/en/java/javase/15/docs/specs/jvmti.html#jvmtiExtensionFunction
>> https://docs.oracle.com/en/java/javase/15/docs/specs/jvmti.html#jvmtiExtensionEvent
> 
> Hello Serguei, you are right, I was talking about this documents.
> Thank you.

Okay but look at the example that documentation gives:

> For example, if the jvmtiParamInfo returned by GetExtensionEvents indicates that there is a jint parameter, the event
> handler should be declared:
>         void JNICALL myHandler(jvmtiEnv* jvmti_env, jint myInt, ...)

The myInt is explicit, just as our "jboolean* enabled" is explicit. I think they key point is that the signature must
end with "..." which it does.

I don't see anything here that needs to be fixed.

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PR: https://git.openjdk.java.net/jdk/pull/466