JNLP Jarring - Class Not Found

Question

Hi,
And again, java web start is one step ahead of me ;p
(re the last post)
I have simplified my requirements and have restricted my application to just one look and feel. That is in the original downloaded jar it came with (signed).
My application has now gone through several versions, and each version has had several jar files containing different classes and things. I have never yet needed to specify a jar file in the manifest of another jar file to make it work.
However, it cannot load the look and feels now. In the main class, I use:
UIManager.setLookAndFeel("com.incors.plaf.kunststoff.KunststoffLookAndFeel");- where the look and feel is in a jar file pointed to in my classpath. Run locally, it works fine, but run over JNLP it throws a ClassNotFoundException.
If I change it to:
UIManager.setLookAndFeel(new com.incors.plaf.kunststoff.KunststoffLookAndFeel());Then the look and feel loads ok in both local and jnlp modes, but now it cannot find UI classes for things like JButtons when running over JNLP.
Im using exactly the same jar file each time. Can anyone help?
DS

Answer 1

Got to stop doing this..
Those of you having problems in this area take a look at these two links..
http://developer.java.sun.com/developer/bugParade/bugs/4155617.html
and
http://forum.java.sun.com/thread.jsp?forum=38&thread=166873
Its a botch method round it (and should have been fixed by now..?) but it basically entails providing a class loader gotten from a JComponent.
Ive created a little class subclassing JApplet:
  private static class LFLoader extends JApplet
    public LFLoader() {}
    public void load()
      try
        UIManager.setLookAndFeel(new com.incors.plaf.kunststoff.KunststoffLookAndFeel());
        UIManager.getLookAndFeelDefaults().put( "ClassLoader", cl );
        aei.gui.components.JJSetup.setSimpleLFUsed(false);
      catch(Exception e)
      { System.out.println(e.getMessage()); e.printStackTrace(); }
  }You cant just call new Applet().getClass().getClassLoader() for some reason.
The type of classloader displayed when the application starts..? sun.misc.Launcher$AppClassLoader if running locally, or com.sun.jnlp.JNLPClassLoader if over JNLP.
My app now works but .. subclassing an applet to get it going .. eech!
DS