org.springframework.transaction.CannotCreateTransactionException:

collection list is null in assortmentTag id is yrjs_rlzj
org.springframework.transaction.CannotCreateTransactionException: Could not open
 Hibernate Session for transaction; nested exception is org.hibernate.SessionExc
eption: Session is closed!
Caused by: org.hibernate.SessionException: Session is closed!
        at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionI
mpl.java:49)
        at org.hibernate.impl.SessionImpl.connection(SessionImpl.java:358)
        at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegi
n(HibernateTransactionManager.java:441)
        at org.springframework.transaction.support.AbstractPlatformTransactionMa
nager.getTransaction(AbstractPlatformTransactionManager.java:315)
        at org.springframework.transaction.interceptor.TransactionAspectSupport.
createTransactionIfNecessary(TransactionAspectSupport.java:257)
        at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:102)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:185)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynami
cAopProxy.java:209)
        at $Proxy1.findExpertInfoByParam(Unknown Source)
        at com.lianzhuang.utils.tag.ExpertTag.doStartTag(ExpertTag.java:54)
        at org.apache.jsp.index_jsp._jspx_meth_expertTag_005fexpertTag_005f0(ind
ex_jsp.java:3123)
        at org.apache.jsp.index_jsp._jspx_meth_cache_005fcache_005f2(index_jsp.j
ava:2929)
        at org.apache.jsp.index_jsp._jspService(index_jsp.java:579)
        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:386)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
13)
        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(Appl
icationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewrit
eFilter.java:738)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at com.lianzhuang.utils.PagerFilter.doFilter(PagerFilter.java:32)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilte
r.java:146)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.do
FilterInternal(OpenSessionInViewFilter.java:174)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR
equestFilter.java:77)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:859)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:48
9)