JavaHelp not rendering HTML when run from Fatjar

Question

I'm experiencing a strange problem with JavaHelp: when I run my app from Eclipse and open JavaHelp, the html help pages render just fine. If I Fatjar the app and run it from the fatjar, however, then when I open the JavaHelp, my html help pages are displayed as raw text, HTML tags and all. For some reason it's not rendering the HTML. I'm guessing that maybe the fatjar is messing up the JEditorPane's ability to detect the content-type of the help pages, but I have no idea how to fix it if that's the case.
I'm using a plain vanilla HelpSet file, pretty much straight out of the JavaHelp User's Guide.
Anyone have any idea what might be causing this or how I might fix it/work around it? Has anyone else seen this problem before?

Answer 1

For whatever it's worth, I am seeing this problem as well. It doesn't seem to have to do with FatJar, as I'm seeing it when I simply do the following:
    HelpSet helpSet = null;
    final ClassLoader cl = this.getClass().getClassLoader();
    try {
      helpSet = new HelpSet(null, HelpSet.findHelpSet(this.getClass().getClassLoader(), "IdeHelp.hs")); // XXX bogus for now
    } catch (final Exception kaboom) {
      helpSet = null;
    if (helpSet != null) {
      final HelpBroker helpBroker = helpSet.createHelpBroker();
      final ActionListener helpItemActionListener = new CSH.DisplayHelpFromSource(helpBroker);
      final JMenuItem primaryHelpItem = new JMenuItem("Help\u2026");
      primaryHelpItem.addActionListener(helpItemActionListener);
      helpMenu.add(primaryHelpItem);
    }I suspect it's a problem with the classloader, but I haven't dug to find out what exactly.
Best,
Laird