Cannot open jmx-console

[thomas2008ch]

I call up the Jboss admin page http://localhost:8080 and then open the  "jmx-console" or web-console. It works.

But after I set the security for the jmx-console and web-console I can't open the jmx-console and web-console any more. What I see is a blank page. Normally a pop-up dialog for user name and password should be shown.

What I did is simply take out the commends in jboss-web.xml and web.xml as described in Jboss documents such as "http://docs.jboss.org/jbossas/getting_started/v4/html/tour.html". 

I did the same by another JBoss AS and it works.

What could be the reason?

[jaikiran]

Which version of JBoss AS?

Thomas Chang wrote:

But after I set the security for the jmx-console and web-console I can't open the jmx-console and web-console any more. What I see is a blank page. 

Do you see any errors in the server.log or the console? Also, which browser are you using? Try clearing the cookies and see if it makes a difference.

[thomas2008ch]

I cleared the cockies and cache and tried both IE and FF. It's the same, i.g. a blank page is shown. There is nothing written to the server.log.

[jaikiran]

As asked in the previous reply, which version of JBoss AS do you use?

[thomas2008ch]

The version of Jboss AS is 4.3.0.GA_CP02 and it is installed on RHEL 4 (RedHat Linux).

The stranger is, there are 3 Jboss AS instances installed on this Linux machine. One of them has no such problem. I think there is anywhere difference/mistake by the configuration. But I can't tell where is this difference since the Jboss AS installation was not done by me.