[domain@localhost:9990 /] /deployment=empty-deployment.jar:add(content=[{empty=true}])
    {
        "outcome" => "success",
        "result" => undefined,
        "server-groups" => undefined
    }
    [domain@localhost:9990 /] /server-group=main-server-group/deployment=empty-deployment.jar:add()              
    {
        "outcome" => "failed",
        "result" => undefined,
        "failure-description" => {"WFLYDC0074: Operation failed or was rolled back on all servers. Server failures:" => {"server-group" => {"main-server-group" => {"host" => {"master" => {
            "server-one" => "WFLYSRV0201: Cannot have more than one of [bytes, input-stream-index, hash, url, empty]",
            "server-two" => "WFLYSRV0201: Cannot have more than one of [bytes, input-stream-index, hash, url, empty]"
        }}}}}},
        "rolled-back" => true,
        "server-groups" => {"main-server-group" => {"host" => {"master" => {
            "server-one" => {"response" => {
                "outcome" => "failed",
                "failure-description" => "WFLYSRV0201: Cannot have more than one of [bytes, input-stream-index, hash, url, empty]",
                "rolled-back" => true
            }},
            "server-two" => {"response" => {
                "outcome" => "failed",
                "failure-description" => "WFLYSRV0201: Cannot have more than one of [bytes, input-stream-index, hash, url, empty]",
                "rolled-back" => true
            }}
        }}}}
    }