A customer is running into problems trying to load an applet from an https web page when using the mandatory profiles on Windows 2000 (ntuser.man) instead of the typical profiles (ntuser.dat). Problem can be reproduced with the following steps:

1. Create a new profile on a Windows 2000 system and assign it to a mandatory profile according to the directions at http://support.microsoft.com/default.aspx?scid=KB;EN-US;q323368&. From
that page:

"A mandatory user profile is a user account in which the settings are
preconfigured by the administrator. If you are using a mandatory user profile, you can modify the profile, but when you log off the computer, the changes are not saved to the profile location (the changes are non-persistent). When you log on to the computer again, the original mandatory profile is loaded on the computer."

2. Install a 1.4.0_xx or 1.4.1_xx plugin on the Windows system.

3. Point to this page which loads an applet -
https://greenray.east:8443/sbc/example2.html.

4. This fails with a null pointer exception in the plugin console (see
plugin trace file below).

Please note:

- There are no problems with non-SSL web pages (for example, http://greenray.east/8080/sbc/example2.html) with mandatory profiles.
- Both SSL and non-SSL work with the standard ntuser.dat profiles on Windows 2000.
- This problem does not exist with mandatory profiles on Windows NT. It is specific to Windows 2000.
- The problem does not exist with 1.3.1 (tested both 1.3.1_02 and 1.3.1_06).
- The problem does exist with both 1.4.0_02 and 1.4.1_01.

This looks related to bug 4479378. That bug was fixed for most cases in merlin-beta2, but it seems that this particular case was not addressed.



Java(TM) Plug-in: Version 1.4.0_02
Using JRE version 1.4.0_02 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\test.DTSTEST13.000
Proxy Configuration: Manual Configuration
     Proxy:
http=webcache.east:8080,https=webcache.east:8080,ftp=webcache.east:8080,gopher=webcache.east:8080
     Proxy Overrides: <local>


----------------------------------------------------
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
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system properties
t: dump thread list
x: clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
java.lang.ExceptionInInitializerError
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:130)
        at java.net.URL.getURLStreamHandler(URL.java:1085)
        at java.net.URL.<init>(URL.java:584)
        at java.net.URL.<init>(URL.java:476)
        at java.net.URL.<init>(URL.java:425)
        at sun.plugin.AppletViewer.getDocumentBase(AppletViewer.java:954)
        at sun.plugin.AppletViewer.getCodeBase(AppletViewer.java:1007)
        at sun.plugin.AppletViewer.appletInit(AppletViewer.java:502)
        at sun.plugin.viewer.LifeCycleManager.initAppletPanel(LifeCycleManager.java:133)
        at sun.plugin.viewer.IExplorerPluginObject$Initer.run(IExplorerPluginObject.java:172)
Caused by: java.lang.NullPointerException
        at java.security.MessageDigest.update(MessageDigest.java:277)
        at sun.plugin.security.WSecureRandom.<init>(WSecureRandom.java:45)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
        at java.lang.Class.newInstance0(Class.java:296)
        at java.lang.Class.newInstance(Class.java:249)
        at java.security.Security.doGetImpl(Security.java:1123)
        at java.security.Security.doGetImpl(Security.java:1070)
        at java.security.Security.getImpl(Security.java:1031)
        at java.security.SecureRandom.getInstance(SecureRandom.java:224)
        at java.security.SecureRandom.<init>(SecureRandom.java:135)
        at sun.plugin.services.WIExplorerBrowserService.getSecureRandom(WIExplorerBrowserService.java:96)
        at sun.plugin.net.protocol.https.Handler$1.run(Handler.java:37)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.plugin.net.protocol.https.Handler.<clinit>(Handler.java:33)
        ... 11 more
java.lang.NullPointerException
        at sun.plugin.AppletViewer.getCodeBase(AppletViewer.java:1007)
        at sun.plugin.AppletViewer.appletInit(AppletViewer.java:502)
        at sun.plugin.viewer.LifeCycleManager.initAppletPanel(LifeCycleManager.java:133)
        at sun.plugin.viewer.IExplorerPluginObject$Initer.run(IExplorerPluginObject.java:172)