RFR: 8295650: JFR: jfr scrub should warn if an event type doesn't exist [v2]

[Markus Grönlund]

On Thu, 20 Oct 2022 10:47:15 GMT, Erik Gahlin <egahlin at openjdk.org> wrote:

>> Hi,
>> 
>> It's easy to do a typo when using the 'jfr scrub' command. For example, a user may type "jdk.InitialEnvironmentVariables", "jdk.EnvironmentVariable" or "InitialEnvironmentVariable" and believe events have been removed from a recording file when they should have typed "jdk.InitialEnvironmentVariable" to filter out sensitive data. 
>> 
>> To help users, a warning message is now written if an event filter doesn't match metadata available in the recording.
>> 
>> Thanks
>> Erik
>
> Erik Gahlin has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix metadata command

Marked as reviewed by mgronlun (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/10779