Web services subsystem should return UnknownHostException as result of management operation if it occurs

[standalone@localhost:9999 /] /subsystem=webservices/:write-attribute(name="wsdl-host", value="#$%@#$")
{
    "outcome" => "success",
    "response-headers" => {
        "operation-requires-reload" => true,
        "process-state" => "reload-required"
    }
}