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https://issues.apache.org/jira/browse/DERBY-3466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576119#action_12576119
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John H. Embretsen commented on DERBY-3466:
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I agree we should not put too much effort into how the presentation of Derby's 
MBeans will look in generic tools without an additional abstraction layer, 
although I'm sure a large portion of Derby's JMX users will access the beans 
directly this way, at least to begin with.

One more question:
Other than by accessing Derby's MBeans, how can a user determine the value of 
the system identifier? Is it being exposed by some other public API as well?

> Investigate ability to run multiple Derby systems in same JVM with different 
> sets of MBeans.
> --------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3466
>                 URL: https://issues.apache.org/jira/browse/DERBY-3466
>             Project: Derby
>          Issue Type: Sub-task
>          Components: JMX
>            Reporter: Daniel John Debrunner
>            Priority: Minor
>             Fix For: 10.4.0.0
>
>         Attachments: d3466_mbean_system_id.txt
>
>
> One of the reasons for JMX was to move away from system properties 
> (specifically derby.system.home) to allow multiple Derby systems running 
> within the same virtual machine. It would be good to get some unique 
> naming/attribute scheme in the ObjectNames up front rather than only have it 
> in some later version.

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