[Rev 01] RFR: 6825: JMX defineEventProbes fails when no events in XMLDescriptor

[Marcus Hirt]

On Mon, 8 Jun 2020 14:10:50 GMT, Jessye Coleman-Shapiro <jescolem at openjdk.org> wrote:

>> This patch makes the agent JMX operation 'defineEventProbes' accept an xmlDecsription with no event tags.  Previously,
>> the only way you could clear all current transforms was to supply the operation with an empty or null xmlDescription.
>> Now a file with the following structure will also clear all current transforms:
>> `<jfragent><events></events></jfragent>`
>
> Jessye Coleman-Shapiro has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix style issue

Marked as reviewed by hirt (Lead).

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PR: https://git.openjdk.java.net/jmc/pull/80