[Echo-list] Trying to access ServerContext keeps throwing NPE

[Thomas H. L. <th...@tr...>]

I've tried posting this on the forums, but no reply. So trying here. 
Sorry for the double posting, but I cant get further in my development 
without this solved.

I'm running Echo 1.0.3 on JBoss 3.2.3/Tomcat and the echo app is 
protected correctly with login to the backend container.

I am now trying to access the server context in the echo application to 
print the username of the person logged in, but whenever I try to access 
the server context it keeps throwing me an NPE.

ServerContext serverCtx = 
(ServerContext)(getEchoInstance().getAttribute(ServerContext.ATTRIBUTE_NAME));
System.err.println("Logged in name:" + 
serverCtx.getUserPrincipal().getName());

Can anyone give me any hints on what might be wrong?

Is the server context available "all the time"? Do I need to put the 
code somewhere special?

I've tried looking through the maillist archives, forums and API docs, 
but I am just simply stuck.

Please help - thanks!

/Thomas