IllegalStateException on index.html??

[se...@viewpoint.com]

Error: 500
Location: /partners/index.html
Internal Servlet Error:

java.lang.IllegalStateException: Can't happen - classname is null, who added
this ?
	at
org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:261)
	at
org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:289)
	at org.apache.tomcat.core.Handler.service(Handler.java:254)
	at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
	at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
7)
	at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
	at
org.apache.tomcat.service.connector.Ajp13ConnectionHandler.processConnection
(Ajp13ConnectionHandler.java:160)
	at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
	at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
	at java.lang.Thread.run(Thread.java:484)


It's a very simple html page. Obviously it references no classes. Why am I
getting this error? I've been using Tomcat for a few weeks now and this is
the first time I've seen this. Restart Tomcat and I get the page just fine.
Another oddity that happened to me yesterday was all of a sudden I was
getting "Forbidden" errors on my HTML pages. In that case I only had to
restart Apache. I'm using Tomcat 3.2.

-Sean