Applets and Netscape 6!

Question

Hi there,
I am not sure if this is the right forum to post my question. However, i saw some discussions reg. Applets on Netscape 6 and i guess that many of you might be familiar with the scenario.
I'm having trouble getting any applets to work on Netscape 6 when I have HTTP authentication on the webserver enabled. The applet works fine under normal circumstances.
Instead of loading the applet, I get a Java dialog box saying "Enter Network Password" and asks me to enter my username/password. This is a specific Java dialog box, complete with a picture of Duke, and it
gives my firewall, digest and realm information.
However, the dialog box doesn't accept my username/password, and doesn't
display my applet.
Here is what i captured on the Java console:
======= Default Browser Messages =========
Java(TM) Plug-in: Version 1.3.0_01
Using JRE version 1.3.0_01 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\hsivapatham
Proxy Configuration: Browser Proxy Configuration
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
q: hide console
s: dump system properties
t: dump thread list
x: clear classloader cache
0-5: set trace level to <n>
Trace level set to 5: basic, net, security, ext, liveconnect ... completed.
Registered modality listener
Referencing classloader: sun.plugin.ClassLoaderInfo@5256fa, refcount=1
=========== Loading the Applet... ==========
Added trace listener: sun.plugin.navig.win32.AppletPluginPanel[SpeedDial,0,0,300x295,invalid,layout=java.awt.BorderLayout]
Sending events to applet. LOAD
Determine if the applet requests to install any HTML page
Sending events to applet. INIT
Sending events to applet. START
HTML Installation finished.
===== Not sure what this means? =========
Determine if the applet requests to install any JAR
Jar cache option: null
Jar archive(s): null
Jar cache version(s): null
Applet Installation finished.
====================================
Opening http://10.1.1.126:90/SpeedDialApplet.jar
Connecting http://10.1.1.126:90/SpeedDialApplet.jar with no proxy
======= Puts up a dialog box asking for username and password ==========
Firewall authentication: site=VAANI/10.1.1.126:90, protocol=http, prompt=xpressa, scheme=basic
Modality pushed
Modality popped
User selected: 0
Opening http://10.1.1.126:90/SpeedDial.class
Connecting http://10.1.1.126:90/SpeedDial.class with no proxy
java.lang.NullPointerException
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
     at sun.plugin.protocol.jdk12.http.HttpURLConnection.getInputStream(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(Unknown Source)
     at sun.plugin.protocol.jdk12.http.HttpURLConnection.checkCookieHeader(Unknown Source)
     at sun.plugin.protocol.jdk12.http.HttpURLConnection.getInputStream(Unknown Source)
     at java.net.HttpURLConnection.getResponseCode(Unknown Source)
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
</code>
Thanks for your help.
Priya

Answer 1

oops, i forgot to add this, can u tell me what speeddial.class is trying to do?
i belive u r making a url connection in that class and u got a null exception.
if u r indeed making a urlconnection, be sure to include the basic authentication in the headers. here is a sample
String basicAuth = Base64Coder.base64Encode("username:password");
basicAuth = "Basic " + basicAuth;
java.net.URL url = new java.net.URL(strUrl);
java.net.HttpURLConnection con = (java.net.HttpURLConnection) url.openConnection();
con.setRequestProperty("Authorization", basicAuth);