Product Version = NetBeans IDE 7.3 (Build 201302132200)
Operating System = Windows 7 version 6.1 running on amd64
Java; VM; Vendor = 1.7.0_15
Runtime = Java HotSpot(TM) 64-Bit Server VM 23.7-b01

Seems strange, but here's an example:

/**
 * Load ojknockout here, so no one else has to worry about it
 */
require(
[
    'jquery', 'jqueryui', 'ojknockout',
    
    'otool/framework/documents/TextResource',
    'otool/framework/utilities/ConsoleUtils'
],
// this callback gets executed when all required modules are loaded
function($, undefined, undefined,
           TextResource, consoleUtils)
...

I want jqueryui, and ojknockout to load, but I don't want arguments for them.

Probably not a very important use case, just seemed weird that undefined could eve produce an error.