XML : Configure a CAS with Spring (Boot) without web.xml

I'm porting a WebApp from Spring 3 to Spring 4 with Boot.

The original web.xml below

  <listener>   <listener-class>org.jasig.cas.client.session.SingleSignOutHttpSessionListener</listener-class>  </listener>    <filter>   <filter-name>CAS Authentication Filter</filter-name>   <filter-class>org.jasig.cas.client.authentication.AuthenticationFilter</filter-class>   <init-param>      <param-name>casServerLoginUrl</param-name>      <param-value>https://casserver/login</param-value>   </init-param>   <init-param>      <param-name>serverName</param-name>      <param-value>http://myapp</param-value>   </init-param>  </filter>    <filter>   <filter-name>CAS Validation Filter</filter-name>   <filter-class>org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter</filter-class>   <init-param>      <param-name>casServerUrlPrefix</param-name>      <param-value>https://casserver/login</param-value>   </init-param>   <init-param>      <param-name>serverName</param-name>      <param-value>http://myapp</param-value>   </init-param>   <init-param>      <param-name>encoding</param-name>      <param-value>UTF-8</param-value>   </init-param>  </filter>    <filter>   <filter-name>CAS Single Sign Out Filter</filter-name>   <filter-class>org.jasig.cas.client.session.SingleSignOutFilter</filter-class>  </filter>    <filter-mapping>   <filter-name>CAS Single Sign Out Filter</filter-name>   <url-pattern>/*</url-pattern>  </filter-mapping>    <filter-mapping>   <filter-name>CAS Authentication Filter</filter-name>   <url-pattern>/*</url-pattern>  </filter-mapping>  <filter-mapping>   <filter-name>CAS Validation Filter</filter-name>   <url-pattern>/*</url-pattern>  </filter-mapping>    <session-config>   <session-timeout>90</session-timeout>  </session-config>    <context-param>   <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>   <param-value>messages</param-value>  </context-param>    

I'm trying to register all filters, listeners and mappings inside my AppConfic class (below and NOT complete since it's already not working...)

  @Configuration  public class MyWebApplicationInitializer implements ServletContextInitializer  {        @Override      public void onStartup(ServletContext servletContext) {          servletContext.addListener(new SingleSignOutHttpSessionListener());            Cas20ProxyReceivingTicketValidationFilter cas20 = new Cas20ProxyReceivingTicketValidationFilter();          cas20.setServerName("http://myapp");            AuthenticationFilter authenticationFilter = new AuthenticationFilter();          authenticationFilter.setCasServerLoginUrl("https://casserver");          authenticationFilter.setServerName("http://myapp");            servletContext.addFilter("CAS Authentication Filter", authenticationFilter);          servletContext.addFilter("CAS Validation Filter", cas20);          servletContext.addFilter("CAS Single Sign Out Filter", new SingleSignOutFilter());      }  }    

1/ CAS20 instanciation problem

I can't define cas20 casServerUrlPrefix... There's no setter ?!

2/ AuthenticationFilter problem

Even with serverName defined, during startup, the following error occurs :

  java.lang.IllegalArgumentException: serverName or service must be set.      at org.jasig.cas.client.util.CommonUtils.assertTrue(CommonUtils.java:116) ~[cas-client-core-3.2.1.jar:3.2.1]      at org.jasig.cas.client.util.AbstractCasFilter.init(AbstractCasFilter.java:103) ~[cas-client-core-3.2.1.jar:3.2.1]      at org.jasig.cas.client.authentication.AuthenticationFilter.init(AuthenticationFilter.java:96) ~[cas-client-core-3.2.1.jar:3.2.1]      at org.jasig.cas.client.util.AbstractCasFilter.init(AbstractCasFilter.java:84) ~[cas-client-core-3.2.1.jar:3.2.1]      at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279) ~[tomcat-embed-core-8.0.28.jar:8.0.28]      at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:109) ~[tomcat-embed-core-8.0.28.jar:8.0.28]    

Is it possible to define inside a ServletContextInitializer this kind of filters ? Do I have to load a xml (dispatcher-servlet.xml like ?)