at $Proxy0.getStudents(Unknown Source)

at sample.web.StudentListAction.getPageIterator(StudentListAction.java:22)

at com.jdon.strutsutil.ModelListAction.execute(ModelListAction.java:69)

at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)

at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)

at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)

at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)

at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)

at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)

at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)

at java.lang.Thread.run(Thread.java:595)

Caused by: java.lang.Throwable: java.lang.Throwable: java.lang.Throwable: java.lang.NullPointerException

at com.jdon.bussinessproxy.dyncproxy.DynamicProxyWeaving.invoke(DynamicProxyWeaving.java:68)

... 23 more

Caused by: java.lang.Throwable: java.lang.Throwable: java.lang.NullPointerException

at com.jdon.aop.AopClient.invoke(AopClient.java:100)

at com.jdon.bussinessproxy.dyncproxy.DynamicProxyWeaving.invoke(DynamicProxyWeaving.java:62)

... 23 more

Caused by: java.lang.Throwable: java.lang.NullPointerException

at com.jdon.aop.reflection.ProxyMethodInvocation.methodInvoke(ProxyMethodInvocation.java:112)

at com.jdon.aop.reflection.ProxyMethodInvocation.proceed(ProxyMethodInvocation.java:76)

at com.jdon.aop.interceptor.SessionContextInterceptor.invoke(SessionContextInterceptor.java:76)

at com.jdon.aop.reflection.ProxyMethodInvocation.proceed(ProxyMethodInvocation.java:84)

at com.jdon.aop.interceptor.StatefulInterceptor.invoke(StatefulInterceptor.java:82)

at com.jdon.aop.reflection.ProxyMethodInvocation.proceed(ProxyMethodInvocation.java:84)

at com.jdon.aop.interceptor.PoolInterceptor.invoke(PoolInterceptor.java:91)

at com.jdon.aop.reflection.ProxyMethodInvocation.proceed(ProxyMethodInvocation.java:84)

at com.jdon.aop.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:58)

at com.jdon.aop.reflection.ProxyMethodInvocation.proceed(ProxyMethodInvocation.java:84)

at com.jdon.aop.AopClient.invoke(AopClient.java:95)

... 24 more

Caused by: java.lang.NullPointerException

at com.jdon.aop.reflection.ProxyMethodInvocation.methodInvoke(ProxyMethodInvocation.java:100)

... 34 more