remove redundant "version" key property from the ObjectName of the JMX MBeans
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Key: QPID-2322
URL: https://issues.apache.org/jira/browse/QPID-2322
Project: Qpid
Issue Type: Improvement
Components: Java Broker, Java Management : JMX Interface
Affects Versions: 0.6
Reporter: Robbie Gemmell
Assignee: Robbie Gemmell
Fix For: 0.7
Brokers from 0.5 onward have an additional version=X key property in the MBean
ObjectName. This was added in 0.5 to enable version tracking for the MBeans to
accomodate compatibility checks where necessary after changes. In 0.6.0.0 a new
version tracking system was put in place, using the new ServerInformation
MBean. As such, the version key property in the ObjectName is no longer
required.
Motivation for removing the key property is that for certain JMX operations
that require knowing the exact ObjectName of the single remote MBean you wish
to operate on, you must know the value of the version key, which is different
on each type of MBean and also differs between releases. Whilst it is possible
to easily Query the server for this information, the ability to first perform
this query is not always available to the user (eg for non-bespoke server
health checks) and as such they need to know the exact value in advance.
Removing the now-unused version key from the ObjectName will remove this need
in future broker releases.
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