Operation read-resource-description invoked against multiple target addresses failed

[domain@localhost:9990 /] /profile=full/subsystem=undertow/servlet-container=*/setting=websocket:read-resource-description
{
    "outcome" => "failed",
    "result" => [{
        "address" => [
            ("profile" => "full"),
            ("subsystem" => "undertow"),
            ("servlet-container" => "*"),
            ("setting" => "websocket")
        ],
        "outcome" => "failed",
        "failure-description" => "WFLYCTL0158: Operation handler failed: java.lang.NullPointerException",
        "rolled-back" => true
    }],
    "failure-description" => "WFLYCTL0285: Operation read-resource-description invoked against multiple target addresses failed at address [
    (\"profile\" => \"full\"),
    (\"subsystem\" => \"undertow\"),
    (\"servlet-container\" => \"*\"),
    (\"setting\" => \"websocket\")
] with failure description WFLYCTL0158: Operation handler failed: java.lang.NullPointerException",
    "rolled-back" => true
}