500 error with really simple web app
I am just getting started with GlassFish, and just installed it on Windows 2003, and updated it.
The GlassFish version is "GlassFish Server Open Source Edition 3.1.1 (build 12)", and it *seems* to be running ok.
I then tried to deploy and enable a simple web app/WAR file that basically contains just a "hello world" index.jsp. The GlassFish admin shows it as enabled.
However, when I try to access the web app (http://glassfish:8080/BasicAuthen), I get a 500 error, but the server.log doesn't seem to show any errors, so I'm not sure what the problem is, or oow to rectify it.
Can anyone tell me how to go about diagnosing this?
P.S. Here's the index.jsp:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">