Faile to read description of singleton resource

[domain@localhost:9990 /] /profile=full/subsystem=undertow/servlet-container=default/setting=websocket:read-resource-description
{
    "outcome" => "failed",
    "failure-description" => "WFLYCTL0030: No resource definition is registered for address [
    (\"profile\" => \"full\"),
    (\"subsystem\" => \"undertow\"),
    (\"servlet-container\" => \"default\"),
    (\"setting\" => \"websocket\")
]",
    "rolled-back" => true
}