Standard host[localhost]: Mapping error?

[ucftcys]

I am using JBoss3.2.1 with Tomcat .I changed the http port to 80, and the system keeping showing a message when someone connect to it...
the message is:
INFO [Engine] StandardHost[localhost]:MAPPING configuration error for request URI /

Could anyone tell me how to resolve this?
Although it doesn't affect the system...but I hate seeing these messages....
Also, sometimes the system shows a message:
Connection reset by peer: socket write error
it doesn't affect the system either...but it's annoying..
I don't like to see the java exception....

[ucftcys]

I found the solution...I didn't specify the context root...so I need to specify one of the war as root..
put the following line in jboss-web.xml
<context-root>/</context-root>

and that war will act as context root...