Spring MVC - jsp i html

Dlaczego jest tak, że jezeli zmienie w mojej aplikacji jsp na html dostaje 404 ? Zmieniam w web.xml w servlet.xml oraz index.jsp na index.html. Przy jsp wyswietla jak nalezy.

web.xml

 
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
  <display-name>Web-FFM</display-name>
  <welcome-file-list>
    
    <welcome-file>index.jsp</welcome-file>
   
  </welcome-file-list>
  
  
  <servlet>
  	<servlet-name>webmvc-dispatcher</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
  </servlet>
  
  <servlet-mapping>
		<servlet-name>webmvc-dispatcher</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
	
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/webmvc-dispatcher-servlet.xml</param-value>
	</context-param>
	
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
  
</web-app>

webmvc-dispatcher-servlet.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">


<context:component-scan base-package="pl.controller"></context:component-scan>

	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">

		<property name="prefix">
			<value>/WEB-INF/views/</value>
		</property>

		<property name="suffix">
			<value>.jsp</value>
		</property>
	</bean>
</beans>
 

struktura proj:

http://stackoverflow.com/questions/15479213/how-to-serve-html-files-with-spring