please help me for this.

am trying to execute servlet programe at myeclipse. but am getting

type Status report
message /hi/servlet/hs1
description The requested resource (/hi/servlet/hs1) is not available

at the browser.
and at the server am getting this error
restartContext(/hi)
Reloading this Context has started

plse help me to over come this problum.
jsp page is working properly.

and my .xml file is like this.

******************
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<description>This is the description of my J2EE component</description>
<display-name>This is the display name of my J2EE component</display-name>
<servlet-name>hs1</servlet-name>
<servlet-class>hs1</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>hs1</servlet-name>
<url-pattern>/hi/servlet/hs1</url-pattern>
</servlet-mapping>

</web-app>


at url-pattern..i changed that to
http://localhost:8080/hi/servlet/hs1.

but still am getting this problum. pls.. any one help me for this.