Direciona o controle de sessão para o Spring.

define_spring_para_controlar_sessao_web.xml

        <!-- Controla a sessao -->  
 

        <listener>
             <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <listener> 
              <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>  
        </listener>
        
         <filter>
          <filter-name>springSecurityFilterChain</filter-name>
          <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
        </filter>

        <filter-mapping>
          <filter-name>springSecurityFilterChain</filter-name>
          <url-pattern>/*</url-pattern>
        <dispatcher>FORWARD</dispatcher>
        <dispatcher>REQUEST</dispatcher>
        </filter-mapping>