In the java visual vm, in the mbean tab, under the "jboss.as:subsystem=datasources,data-source=MyDataSource" mbean, attribute "statistics" is marked as "Unavailable"

When using the spy="true" attribute in the datasource subsystem in conjunction with the "org.jboss.jca" logger set as TRACE level in the logging subsystem, statistics are outputted as follow :

Statistics:
ActiveCount: 1
AvailableCount: 99
AverageBlockingTime: 0
AverageCreationTime: 248
CreatedCount: 1
DestroyedCount: 0
MaxCreationTime: 248
MaxUsedCount: 1
MaxWaitCount: 0
MaxWaitTime: 0
TimedOut: 0
TotalBlockingTime: 0
TotalCreationTime: 248

I would except to find those statistics available through separates jmx attributes when using the spy="true".