🚀 go-pugleaf

Hi, I'm trying to display RTF Files(Japanese) with no luck. Files
written in English display
w/out problems. Does any one know the proper setting for the content
type for this?
My code snipped attached. Any help greatly appreciated.

.....
class DocPane extends JScrollPane {
    JEditorPane rtf = null;
    String urlString = null;
     public DocPane() {
        rtf = new JEditorPane();
       try {
         File f = new File ("C:/rtf/myhelpfile.rtf");
          s = "file:"+f.toString();
      try{
          URL url = new URL(s);
          rtf = new JEditorPane();
          rtf.setContentType("text/rtf; charset=Shift-jis");
          rtf.setEditable(false);
          JViewport vp = getViewport();
          vp.add(rtf);
          rtf.setPage(url);
       } catch (MalformedURLException e) {
         System.out.println("Malformed URL: " + e);
       } catch (IOException e) {
         System.out.println("IOException: " + e);
       }
    }
}


Thanks,

george