Two common means of generating DirectAction URLs in WebObjects are by using the directActionName bindings available in WOHyperLink (and it’s brethren) and by using the WOContext method: directActionURLForActionNamed(String name, NSDictionary).

Kol. Panic offered a tip on suppressing the Session ID (wosid) in DirectAction urls generated from a WOHyperLink in the comments of this post.

It turns out that there is a similar method if you are generating the URL in your code from a WOContext:

  public String loginUrl() {
    NSDictionary dict = new NSDictionary(
        new Object[] {Boolean.FALSE},
        new String[] {"wosid"});
    return context().directActionURLForActionNamed("login", dict);
  }