配置shiro ehcache 出现这个异常,（未解决） java.lang.NoClassDefFoundError: org/terracotta/statistics/StatisticsManager

<?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:tx="http://www.springframework.org/schema/tx" 
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc" 
       xmlns:cache="http://www.springframework.org/schema/cache"
       xsi:schemaLocation=
       "http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/cache
        http://www.springframework.org/schema/cache/spring-cache.xsd">
    <!-- Shiro主过滤器本身功能十分强大，它支持任何基于URL路径表达式的、自定义的过滤器 -->
     <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean" >
         <property name="securityManager" ref="securityManager"/>
         <!-- 当访问需要认证的资源时，如果没有认证，将自动跳到该url
             如果不配置该属性，默认为根目录下的login.jsp         -->
         <property name="loginUrl" value="/login.jsp"></property>
         <!-- 配置成功后跳转到哪个url上，通常不设置，默认认证成功后跳转上上一个url -->
        <property name="successUrl" value="/main.jsp" ></property>
         <!-- 没有权限访问资源时跳转的页面 -->
         <property name="unauthorizedUrl" value="refuse"></property>
         <!-- shiro的过滤器链  具体配置需要拦截哪些URL，以及访问对应的URL时
         使用Shiro的默认Filter进行拦截-->
         <property name="filterChainDefinitions">
        <!--anon  任何人都可以访问
            authc 必须是登录之后才能访问，不包括remember me
            user  登录用户才可以访问
            perms 指定过滤规则，扩展使用
        -->
             <value>
                 /toLogin=anon
                 /login-s=anon
                 /logout=logout
                 /main=user
                 /**=anon
             </value>
         </property>
     </bean>
     <!-- authc过滤器 -->
     <bean id="authc" class="org.apache.shiro.web.filter.authc.FormAuthenticationFilter">
         <property name="usernameParam" value="uname"></property>
         <property name="passwordParam" value="pwd" ></property>
         <property name="rememberMeParam" value="rememberMe"></property>
     </bean>
     <!-- logout过滤器 -->
     <bean id="logout" class="org.apache.shiro.web.filter.authc.LogoutFilter">
         <property name="redirectUrl" value="/toLogin"></property>
     </bean>
     <!-- 缓存管理器 -->
     <bean id="cacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
         <property name="cacheManagerConfigFile" value="classpath:ehcache-shiro.xml"></property>
     </bean>
     <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
         <!-- 若有多个Realm，可使用realms 代替 -->
         <property name="realm" ref="userRealm"></property>
         <property name="cacheManager" ref="cacheManager"></property>
         <property name="sessionManager" ref="sessionManager"></property>
         <property name="rememberMeManager" ref="rememberMeManager"></property>
     </bean>
     <bean id="userRealm" class="com.bjsxt.realm.UserRealm">
         <property name="credentialsMatcher" ref="credentialsMatcher" ></property>
     </bean>
     <!-- 会话管理器 -->
     <bean id="sessionManager" class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager">
         <property name="globalSessionTimeout" value="300000"></property>
         <!-- 删除无效session -->
         <property name="deleteInvalidSessions" value="true"></property>
     </bean>
     <!-- 记住我配置 -->
     <bean id="rememberMeManager" class="org.apache.shiro.web.mgt.CookieRememberMeManager">
         <property name="cookie" ref="rememberMeCookie"></property>
     </bean>
     <bean id="rememberMeCookie" class="org.apache.shiro.web.servlet.SimpleCookie ">
         <property name="maxAge" value="604800" />
         <!-- 设置cookie的名称 -->
         <property name="name" value="rememberMe"></property>
     </bean>
     <!-- 必须配置lifecycleBeanPostProcessor:管理shiro中常见的对象 -->
     <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor" ></bean>
     <bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
         <property name="hashAlgorithmName" value="md5"></property>
         <property name="hashIterations" value="10"></property>
     </bean>
     
 </beans>
        

 <bean id="cacheManager" class="org.apache.shiro.cache.MemoryConstrainedCacheManager">