what happens if you translate the tags yourself to actual java code within <% %> brackets, do you still get classcast exceptions?
Filip > -----Original Message----- > From: Mufaddal Khumri [mailto:[EMAIL PROTECTED] > Sent: Thursday, June 12, 2003 10:09 PM > To: Tomcat Users List > Subject: Re: Class cast exception ... > > > These were the values i got. > session DBWRITER = [EMAIL PROTECTED] > session DBREADER = [EMAIL PROTECTED] > > This means that my DBREADER and DBWRITER are using the right classes. > > Its still giving me a class cast exception. I thought maybe there is a > session object stored under the name locationHelper which is not of > type LocationHelper. But before this jsp is reached there is no > locationHelper attribute present in the session. I still cant figure > out where I am going wrong. Does anyone have any ideas ? The jsp code > is below and so is the stack Trace > > >> <jsp:useBean id="locationHelper" > >> class="com.wavesinmotion.cw.classes.jsphelpers.LocationHelper" > >> scope="session"> > >> <jsp:setProperty name="locationHelper" > >> property="dbReader" > >> value="<%= > session.getAttribute("DBREADER")%>" /> > >> <jsp:setProperty name="locationHelper" > >> property="dbWriter" > >> value="<%= > session.getAttribute("DBWRITER")%>" /> > >> </jsp:useBean> > > 2003-06-13 10:34:35 StandardWrapperValve[jsp]: Servlet.service() for > servlet jsp threw exception > org.apache.jasper.JasperException > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja > va:248) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica > tionFilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt > erChain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv > e.java:260) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv > e.java:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.ja > va:246) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:241 > 5) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java > :180) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa > lve.java:170) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java > :172) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > 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$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:43 > 2) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processC > onnection(Http11Protocol.java:386) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:53 > 4) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool > .java:530) > at java.lang.Thread.run(Thread.java:554) > ----- Root Cause ----- > java.lang.ClassCastException > at > org.apache.jsp.EditOffering_jsp._jspService(EditOffering_jsp.java:142) > at > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja > va:204) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica > tionFilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt > erChain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv > e.java:260) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv > e.java:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.ja > va:246) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:241 > 5) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java > :180) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa > lve.java:170) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java > :172) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. > java:174) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i > nvokeNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 > 80) > 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:43 > 2) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processC > onnection(Http11Protocol.java:386) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:53 > 4) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool > .java:530) > at java.lang.Thread.run(Thread.java:554) > > On Friday, June 13, 2003, at 07:16 AM, Yoav Shapira wrote: > > > Howdy, > > Print out the value of session.getAttribute("DBREADER") before you set > > it: that > > way you can see what its real runtime class is. It probably won't be > > that > > locationHelper class you're trying to cast into... > > > > Yoav Shapira > > > > --- Mufaddal Khumri <[EMAIL PROTECTED]> wrote: > >> Made a typo in my previous email .. heres the corrected email: > >> > >> I get the following error in tomcat: > >> > >> java.lang.ClassCastException > >> at > >> org.apache.jsp.EditOffering_jsp._jspService(EditOffering_jsp.java:129) > >> > >> I looked at EditOffering_jsp.java and it has this at line 129: > >> > >> locationHelper = > >> (com.wavesinmotion.cw.classes.jsphelpers.LocationHelper) > >> pageContext.getAttribute("locationHelper", PageContext.SESSION_SCOPE); > >> > >> which in the corresponding .jsp page is: > >> > >> <jsp:useBean id="locationHelper" > >> class="com.wavesinmotion.cw.classes.jsphelpers.LocationHelper" > >> scope="session"> > >> <jsp:setProperty name="locationHelper" > >> property="dbReader" > >> value="<%= > session.getAttribute("DBREADER")%>" /> > >> <jsp:setProperty name="locationHelper" > >> property="dbWriter" > >> value="<%= > session.getAttribute("DBWRITER")%>" /> > >> </jsp:useBean> > >> > >> Does anybody have any idea as to why i am getting this class cast > >> exception ? > >> > >> Thanks. > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: [EMAIL PROTECTED] > >> For additional commands, e-mail: [EMAIL PROTECTED] > >> > > > > > > ===== > > Yoav Shapira > > [EMAIL PROTECTED] > > > > __________________________________ > > Do you Yahoo!? > > Yahoo! Calendar - Free online calendar with sync to Outlook(TM). > > http://calendar.yahoo.com > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
