Интеграция Spring Security и CAS

Может ли кто-нибудь вставить здесь простые шаги по интеграции безопасности Spring и CAS для единого входа и единого выхода. Примечание. Мне не нужен доступ на основе ролей. У меня есть веб-приложение, которое уже интегрировано с Spring Security. Теперь я пытался выполнить SSO с CAS, но я получаю эту ошибку sun.security.provider.certpath.SunCertPathBuilderException: невозможно найти действительный путь сертификации к запрошенной цели

Это мой текущий spring security.xml

       <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:sec="http://www.springframework.org/schema/security"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/security 
        http://www.springframework.org/schema/security/spring-security-3.1.xsd
        ">

<sec:http entry-point-ref="casProcessingFilterEntryPoint" >
        <sec:intercept-url pattern="/**" access="ROLE_USER" />
        <sec:logout logout-success-url="/loggedout.jsp" invalidate-session="true"/>
        <sec:custom-filter ref="casAuthenticationFilter" after="CAS_FILTER"/>
    </sec:http>

    <sec:authentication-manager alias="authenticationManager">
        <sec:authentication-provider ref="casAuthenticationProvider"/>
    </sec:authentication-manager>

<bean id="casAuthenticationFilter" class="org.springframework.security.cas.web.CasAuthenticationFilter">
        <property name="authenticationManager" ref="authenticationManager"/>
        <property name="authenticationFailureHandler">
            <bean class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">
                <property name="defaultFailureUrl" value="/casfailed.jsp"/>
            </bean>
        </property>
        <property name="authenticationSuccessHandler">
            <bean class="org.springframework.security.web.authentication.SimpleUrlAuthenticationSuccessHandler">
                <property name="defaultTargetUrl" value="/"/>
            </bean>
        </property>
    </bean>

    <bean id="casProcessingFilterEntryPoint" class="org.springframework.security.cas.web.CasAuthenticationEntryPoint">
        <property name="loginUrl" value="https://cegicollabdev.india.xxx.com:8443/cas/login"/>
        <property name="serviceProperties" ref="serviceProperties"/>
    </bean>

    <bean id="casAuthenticationProvider" class="org.springframework.security.cas.authentication.CasAuthenticationProvider">
        <property name="userDetailsService" ref="userService"/>
        <property name="serviceProperties" ref="serviceProperties" />
        <property name="ticketValidator">
            <bean class="org.jasig.cas.client.validation.Cas20ServiceTicketValidator">
                <constructor-arg index="0" value="https://cegicollabdev.india.tcs.com:8443/cas" />
                </bean>
        </property>
        <property name="key" value="an_id_for_this_auth_provider_only"/>
    </bean>


    <bean id="serviceProperties" class="org.springframework.security.cas.ServiceProperties">
        <property name="service" value="http://localhost:8080/dbcomparision/j_spring_cas_security_check"/>
        <property name="sendRenew" value="false"/>
    </bean>

    <bean id="userService" class="com.tcs.ceg.services.impl.UserServiceImpl" />

 <!--     <sec:global-method-security pre-post-annotations="enabled" />

    <sec:http pattern="/css/**" security="none"/>
    <sec:http pattern="/images/**" security="none"/>
    <sec:http pattern="/js/**" security="none"/>
    <sec:http pattern="/index.jsp" security="none"/>
    <sec:http pattern="/app/addNewUser.json" security="none"/>
    <sec:http pattern="/dbcomplogin.jsp" security="none"/>
    <sec:http pattern="/loggedout.jsp" security="none"/>

    <sec:http use-expressions="true">-->
        <!--
             Allow all other requests. In a real application you should
             adopt a whitelisting approach where access is not allowed by default
          -->
      <!--    <sec:intercept-url pattern="/**" access="isAuthenticated()" />
        <sec:form-login login-page='/dbcomplogin.jsp'
          authentication-failure-url="/dbcomplogin.jsp?login_error=1"
          default-target-url="/index.jsp" />
        <sec:logout logout-success-url="/loggedout.jsp" delete-cookies="JSESSIONID"/>
        <sec:remember-me />

    </sec:http>

    <bean id="myUserService" class="com.tcs.ceg.services.impl.UserServiceImpl" />
    <sec:authentication-manager>
    <sec:authentication-provider user-service-ref="myUserService" />
    </sec:authentication-manager> -->

</beans>

​​Это моя сеть.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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>Spring3MVC</display-name>
  <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            /WEB-INF/spring-rootcontext.xml
            /WEB-INF/spring-security.xml
        </param-value>
    </context-param>
      <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>
    </filter-mapping>
    <!--
      - Loads the root application context of this web app at startup.
    -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/app/*</url-pattern>
  </servlet-mapping>
 <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>
    <listener>
        <listener-class>org.jasig.cas.client.session.SingleSignOutHttpSessionListener</listener-class>
    </listener>

</web-app>

Это мой Spring-rootcontext.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:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" >
  <context:annotation-config />
 <mvc:annotation-driven />
    <context:component-scan
        base-package="com.tcs.ceg" />

 <jee:jndi-lookup id="dataSource1" jndi-name="jdbc/PmdDS"/>


    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource1" />
        <property name="configLocation">
            <value>classpath:hibernate.cfg.xml</value>
        </property>
        <property name="configurationClass">
            <value>org.hibernate.cfg.AnnotationConfiguration</value>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="current_session_context_class">thread</prop>
                <prop key="cache.provider_class">org.hibernate.cache.NoCacheProvider</prop>
                <prop key="hibernate.connection.release_mode">auto</prop>
            </props>
        </property>
    </bean>



    <tx:annotation-driven />
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    </beans>

Это мой Spring-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:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" >



    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass">
        <value>
            org.springframework.web.servlet.view.tiles2.TilesView
        </value>
    </property>
    </bean>
    <bean id="tilesConfigurer"
    class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
    <property name="definitions">
        <list>
            <value>/WEB-INF/tiles.xml</value>
        </list>
    </property>
</bean>
<bean id="messageSource"
    class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
    <property name="basename" value="classpath:messages" />
    <property name="defaultEncoding" value="UTF-8"/>
</bean>

<bean id="localeChangeInterceptor"
    class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
    <property name="paramName" value="lang" />
</bean>

<bean id="localeResolver"
    class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
    <property name="defaultLocale" value="en"/>
</bean>

<bean id="handlerMapping"
    class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
    <property name="interceptors">
        <ref bean="localeChangeInterceptor" />
    </property>
</bean>



    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- one of the properties available; the maximum file size in bytes -->
        <property name="maxUploadSize" value="1000000000000"/>
    </bean>
</beans>

Проблема: 1 sun.security.provider.certpath.SunCertPathBuilderException: невозможно найти действительный путь сертификации для запрошенного цель

Проблема 2: Custom UserServiceimpl не вызывается

Проблема 3: Это правильно? , Примечание. В моей программе нет сопоставления запросов для j_spring_cas_security_check