This site is currently read-only as we are migrating to Oracle Forums for an improved community experience. You will not be able to initiate activity until January 30th, when you will be able to use this site as normal.

    Forum Stats

  • 3,889,900 Users
  • 2,269,775 Discussions


Can't load applet from a kerberized server

alabala_kiril Member Posts: 111
edited Aug 13, 2012 7:14AM in Kerberos & Java GSS (JGSS)
Hi there,

I have the following problem:
There's a java applet served as part of a web application. The User accessing the java applet should be authenticated by the web application. When this is done with basic authentication - the applet works fine.
However when a kerberos authentication is configured on the webserver(using spnego module) - the applet can't be loaded.
I log in to Windows XP using my user and pass. Then using IE I am automatically logged into the web application. I open the page on which the applet is embed, but the JRE can't load it(saying a ClassNotFoundException) The server's access log reveal that the jar can't be loaded because of authentication error:

- - [05/Oct/2011:15:19:54 +0200] "GET /peria/Grid.jar HTTP/1.1" 401 490
- - [05/Oct/2011:15:19:54 +0200] "GET /peria/Grid.jar HTTP/1.1" 401 490
- - [05/Oct/2011:15:19:54 +0200] "GET /peria/Grid.jar HTTP/1.1" 401 490

It seems as if the JRE is having problems authentication itself in front of the server? Could it be that or it is another issue?

Note that I can access the jar file directly via the browser. But when I open the page that has it embed - the applet could not be loaded due to ClassNotFound

Would anyone be so kind as to point me in the right direction?


  • alabala_kiril
    alabala_kiril Member Posts: 111
    edited Oct 7, 2011 8:35AM
    One more question:

    Do I need to configure the JRE on the Client side in order to open the Applet on the kerberized server?

    Currently the JRE can't authenticate and the applet is not loaded due to Not authenticated (401) error.

    Any advice is greatly appreciated!
  • 955427
    955427 Member Posts: 1

    Were you able to resolve this issue? I am having the same problem, server does authentication, but fails when downloading the applet jar file.

This discussion has been closed.