org.hibernate.cache.CacheException: net.sf.ehcache.CacheException: com.zwsky.chinese.classroom.domain.ClassroomCache: Could not remove disk store entry for com.zwsky.chinese.classroom.domain.Classroom#311. Error was com.zwsky.chinese.classroom.domain.Classroom Cache: The Disk store is not active.
	at org.hibernate.cache.EhCache.get(EhCache.java:88)
	at org.hibernate.cache.ReadWriteCache.get(ReadWriteCache.java:80)
	at org.hibernate.event.def.DefaultLoadEventListener.loadFromSecondLevelCache(DefaultLoadEventListener.java:457)
	at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:333)
	at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:122)
	at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:178)
	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:86)
	at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:871)
	at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:839)
	at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:266)
	at org.hibernate.type.EntityType.resolve(EntityType.java:303)
	at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
	at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
	at org.hibernate.loader.Loader.doQuery(Loader.java:717)
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
	at org.hibernate.loader.Loader.doList(Loader.java:2145)
	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
	at org.hibernate.loader.Loader.list(Loader.java:2024)
	at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:95)
	at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1562)
	at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283)
	at org.springside.core.dao.HibernateGenericDao.pagedQuery(HibernateGenericDao.java:257)
	at com.zwsky.chinese.classroom.dao.impl.ClassseriesDaoImpl.pageByMap(ClassseriesDaoImpl.java:240)
	at com.zwsky.chinese.classroom.service.ClassseriesService.pageByMap(ClassseriesService.java:117)
	at com.zwsky.chinese.classroom.service.ClassseriesService$$FastClassByCGLIB$$d6bd8912.invoke()
	at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
	at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)
	at com.zwsky.chinese.classroom.service.ClassseriesService$$EnhancerByCGLIB$$d9b4959c.pageByMap()
	at com.zwsky.chinese.webapp.frontend.mall2013.controller.MallController.searchSeries(MallController.java:1374)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:473)
	at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:410)
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
	at sun.reflect.GeneratedMethodAccessor433.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
	at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:50)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at com.sun.proxy.$Proxy3.handleRequest(Unknown Source)
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
	at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
	at org.apache.jsp.mall2013.index_jsp._jspService(index_jsp.java:219)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:70)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilte