Name: rk38400 Date: 05/01/98


I can display HTML in the AppletViewer but I get
a security exception in Netscape. I have tried using
the Capabilities API but that doesn't work either.

import java.applet.*;
import java.awt.*;
import java.util.*;
import java.net.*;
import java.io.*;

import com.sun.java.swing.*;
import edu.iastate.academy.util.*;

public class TestFrame extends JApplet {
    JTextPane pane;
    public void init() {
        pane = new JTextPane();
        getContentPane().add(pane);
    }

    public void start() {
        try {
            pane.setPage(new URL(getDocumentBase(),"test.html"));
        }
        catch (MalformedURLException exc) {
        }
        catch (IOException exc) {
        }
    }
}

netscape.security.AppletSecurityException: security.checkResourceAccess
  at java.lang.Throwable.<init>(Compiled Code)
  at java.lang.Exception.<init>(Compiled Code)
  at java.lang.RuntimeException.<init>(Compiled Code)
  at java.lang.SecurityException.<init>(Compiled Code)
  at netscape.security.AppletSecurityException.<init>(Compiled Code)
  at netscape.security.AppletSecurityException.<init>(Compiled Code)
  at netscape.security.AppletSecurity.checkResourceAccess(Compiled Code)
  at java.lang.SecurityManager.checkResourceAccess(Compiled Code)
  at java.lang.ClassLoader.getSystemResourceAsStream(Compiled Code)
  at java.lang.Class.getResourceAsStream(Compiled Code)
  at com.sun.java.swing.text.html.HTMLEditorKit.loadStyleSheet(Compiled Code)
* at com.sun.java.swing.text.html.HTMLEditorKit.<init>(Compiled Code)
  at com.sun.java.swing.JEditorPane.createEditorKitForContentType(Compiled Code)
  at com.sun.java.swing.JEditorPane.getEditorKitForContentType(Compiled Code)
  at com.sun.java.swing.JEditorPane.setContentType(Compiled Code)
  at com.sun.java.swing.JEditorPane.setPage(Compiled Code)
  at TestFrame.start(Compiled Code)
  at netscape.applet.DerivedAppletFrame$StartAppletEvent.dispatch(Compiled Code)
  at java.awt.EventDispatchThread$EventPump.dispatchEvents(Compiled Code)
  at java.awt.EventDispatchThread.run(Compiled Code)
  at netscape.applet.DerivedAppletFrame$AppletEventDispatchThread.run(Compiled Code)
java.lang.IllegalArgumentException: Must be StyledEditorKit
  at java.lang.Throwable.<init>(Compiled Code)
  at java.lang.Exception.<init>(Compiled Code)
  at java.lang.RuntimeException.<init>(Compiled Code)
  at java.lang.IllegalArgumentException.<init>(Compiled Code)
  at com.sun.java.swing.JTextPane.setEditorKit(Compiled Code)
  at com.sun.java.swing.JEditorPane.setContentType(Compiled Code)
  at com.sun.java.swing.JEditorPane.setPage(Compiled Code)
  at TestFrame.start(Compiled Code)
* at netscape.applet.DerivedAppletFrame$StartAppletEvent.dispatch(Compiled Code)
  at java.awt.EventDispatchThread$EventPump.dispatchEvents(Compiled Code)
  at java.awt.EventDispatchThread.run(Compiled Code)
  at netscape.applet.DerivedAppletFrame$AppletEventDispatchThread.run(Compiled Code)
(Review ID: 29445)
======================================================================