[standalone@localhost:9990 /] /subsystem=elytron/http-authentication-factory=application-http-authentication:write-attribute(name=security-domain,value=ApplicationDomain){allow-resource-service-restart=true}
{
    "outcome" => "failed",
    "failure-description" => "WFLYCTL0158: Operation handler failed: java.lang.UnsupportedOperationException",
    "rolled-back" => true
}

[standalone@localhost:9990 /] /subsystem=elytron/http-authentication-factory=application-http-authentication:write-attribute(name=mechanism-configurations[0].host-name,value=localhost){allow-resource-service-restart=true}
{
    "outcome" => "success",
    "response-headers" => {
        "operation-requires-reload" => true,
        "process-state" => "reload-required"
    }
}

"security-domain" => {
    "type" => STRING,
    "description" => "The SecurityDomain to associate with this resource",
    "expressions-allowed" => false,
    "required" => true,
    "nillable" => false,
    "capability-reference" => "org.wildfly.security.security-domain",
    "min-length" => 1L,
    "max-length" => 2147483647L,
    "access-type" => "read-write",
    "storage" => "configuration",
    "restart-required" => "resource-services"
}