EAP 6 または EAP 7 で、largest-thread-count の値が常に max-threads と同じなのはなぜですか?

Issue

• largest-thread-count では、同時に使用されているスレッドのピークを確認できるはずですが、以下の CLI に示されるように、常に max-threads と同じ値を示します。

[standalone@localhost:9999 /] /subsystem=ejb3/thread-pool=default:read-resource(include-runtime=true)
{
    "outcome" => "success",
    "result" => {
        "active-count" => 0,
        "completed-task-count" => 152L,
        "current-thread-count" => 10,
        "keepalive-time" => {
            "time" => 100L,
            "unit" => "MILLISECONDS"
        },
        "largest-thread-count" => 10,
        "max-threads" => 10,
        "name" => "default",
        "queue-size" => 0,
        "rejected-count" => 0,
        "task-count" => 153L,
        "thread-factory" => undefined
    }
}