Jboss 7.0.1 server, spring MVC, 404 Not found issue - spring

Question

My web.xml looks like this,
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>com.myapp.mg.listener.TokenListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:applicationContext.xml,
classpath:applicationContext-DataSource.xml,
classpath:wurfl-default-ctx.xml,
classpath:applicationContext-security.xml
</param-value>
</context-param>
<servlet>
<servlet-name>springwebapp</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-Web.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
</web-app>
My applicationContext-Web.xml file looks like this,
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:device="http://www.springframework.org/schema/mobile/device"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mobile/device
http://www.springframework.org/schema/mobile/device/spring-mobile-device-1.0.xsd">
<!-- FOR MVC RESOURCE MAPPING DEFINITIONS -->
<mvc:annotation-driven>
<mvc:argument-resolvers>
<bean class="org.springframework.mobile.device.DeviceWebArgumentResolver"/>
</mvc:argument-resolvers>
</mvc:annotation-driven>
<context:annotation-config/>
<mvc:interceptors>
<bean class="org.springframework.mobile.device.DeviceResolverHandlerInterceptor">
<constructor-arg>
<!-- Inject a WurflDeviceResolver that populates its device repository from the specified file locations -->
<device:wurfl-device-resolver root-location="classpath:wurfl/wurfl-latest.xml"
patch-locations="classpath:/wurfl/web_browsers_patch.xml"/>
</constructor-arg>
</bean>
</mvc:interceptors>
<context:component-scan base-package="com.myweb.mg.web"/>
<bean class="com.myweb.mg.resolver.ExternalResourceViewResolver">
<property name="viewClass" value="com.myweb.mg.resolver.ExternalResourceView"/>
<property name="prefix" value="${mg.appHostingFolder}"/>
<property name="order" value="0"/>
</bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
<property name="order" value="1"/>
</bean>
<bean name="themeResolver" class="org.springframework.web.servlet.theme.FixedThemeResolver">
<property name="defaultThemeName" value="theme"/>
</bean>
</beans>
Now when I run my application on server it shows me a 404 error, which is,
type Status report
message /myweb/
description The requested resource (/myweb/) is not available.
Can any one please provide me some pointers here as what am I doing wrong here???