Oh, forgot to post the actual question. Did anyone experienced this before when they are doing load testing with their application ? Louis Leung wrote:
> Hi all, > > I did some load testing with my struts application (with tomcat) with > around 40 simulated concurrent users. The following exception occurs in > the tomcat log for the app. When there is only one or a few users, this > exception doesn't pop up. > > 2003-06-19 14:34:38 StandardWrapperValve[action]: Servlet.service() for > servlet action threw exception > javax.servlet.ServletException: BeanUtils.populate > at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1190) > > at > org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:821) > > at > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254) > > at > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1480) > at > org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:524) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) > > at > com.sun.ace.runtime.client.jspbean.AceGenericFilter.doFilter(AceGenericFilter.java:49) > > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) > > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415) > > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594) > > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392) > > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565) > > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619) > > at java.lang.Thread.run(Thread.java:536) > ----- Root Cause ----- > java.lang.IllegalArgumentException: No bean specified > at > org.apache.commons.beanutils.PropertyUtils.getPropertyDescriptor(PropertyUtils.java:837) > > at > org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:934) > at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:808) > at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1188) > > at > org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:821) > > at > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254) > > at > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1480) > at > org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:524) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) > > at > com.sun.ace.runtime.client.jspbean.AceGenericFilter.doFilter(AceGenericFilter.java:49) > > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) > > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415) > > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) > > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594) > > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392) > > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565) > > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619) > > at java.lang.Thread.run(Thread.java:536) > > 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