Unexpected HTTP response: 500

Request
{
    "started" => false,
    "discovery-group" => "foo",
    "use-duplicate-detection" => false,
    "forwarding-address" => "",
    "ha" => false,
    "queue-name" => "bar",
    "address" => [
        ("subsystem" => "messaging-activemq"),
        ("server" => "default"),
        ("bridge" => "qux")
    ],
    "operation" => "add"
}

Response

Internal Server Error
{
    "outcome" => "failed",
    "failure-description" => "WFLYCTL0113: '' is an invalid value for parameter forwarding-address. Values must have a minimum length of 1 characters",
    "rolled-back" => true,
    "response-headers" => {"process-state" => "reload-required"}
}