On Mon, 19 Sep 2022 14:25:55 GMT, Jaikiran Pai <j...@openjdk.org> wrote:
>> Add a JFR Event for `java.security.Provider.getService(String type, String
>> algorithm)` calls.
>
> src/java.base/share/classes/java/security/Provider.java line 1293:
>
>> 1291: }
>> 1292:
>> 1293: if (s != null && SecurityProviderServiceEvent.isTurnedOn()) {
>
> Would it be useful to generate an event even for the cases where a call to
> this method was made but no service was available and `null` was returned?
> The event perhaps could capture that there was no service found for such
> type/algorithm combination? That would help identify usages in applications
> where there might be fallbacks being used when this method returns null?
I had this as the original design actually. I'm not sure how interesting it
would be to record such "no-service" type events. It would probably add 2-4
times the number of events for this event type to a typical recording, given
that the framework iterates over the providers in preferential order.
> src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/JDKEvents.java line 32:
>
>> 30:
>> 31: import jdk.jfr.Event;
>> 32: import jdk.jfr.events.*;
>
> Hello Sean, rest of the changes look fine to me, except this one. Was this an
> intentional change to use `*` import instead of the explicit ones?
This was formatted via IDE. Seems like you've a preference to use the more
verbose import style. I'll revert this change.
-------------
PR: https://git.openjdk.org/jdk/pull/9657
