DS stats return wrong value types

the datasource stats declare model type INT, but return a String instead:
[standalone@localhost:9999 /] /subsystem=datasources/data-source=ExampleDS/statistics=pool:read-resource(include-runtime=true)

{ "outcome" => "success", "result" => { "ActiveCount" => "1", "AvailableCount" => "20", "AverageBlockingTime" => "0", "AverageCreationTime" => "1", "CreatedCount" => "1", "DestroyedCount" => "0", "InUseCount" => "0", "MaxCreationTime" => "1", "MaxUsedCount" => "1", "MaxWaitCount" => "0", "MaxWaitTime" => "0", "TimedOut" => "0", "TotalBlockingTime" => "0", "TotalCreationTime" => "1", "statistics-enabled" => true }

}