Hi Lalchandra , i debuggued all the properties values, and found the one that caused a null pointer exception now i have got an other pb, here is the exception : javax.servlet.jsp.JspException: Cannot find bean dernierCpeEmporte in any scope at org.apache.struts.taglib.TagUtils.lookup(TagUtils.java:934) at org.apache.struts.taglib.bean.WriteTag.doStartTag(WriteTag.java:225) at org.apache.struts.taglib.nested.bean.NestedWriteTag.doStartTag(NestedWriteTag.java:51) at org.apache.jsp.pages.CPFA_005fMensuel.saisi_005fajustement.ajust_005fcpe1_jsp._jspx_meth_nested_005fwrite_005f1(ajust_005fcpe1_jsp.java:1720) at org.apache.jsp.pages.CPFA_005fMensuel.saisi_005fajustement.ajust_005fcpe1_jsp._jspService(ajust_005fcpe1_jsp.java:512) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
the property exist, but it didn't recognize it Regards Elyes 2009/2/19 Lalchandra Rampersaud <lrampers...@ceis.cujae.edu.cu> > Can you be more specific as to when the error occurs..... > > Saludos > Lalchandra Rampersaud > > > ----- Original Message ----- From: "elyes sallem" <elyes.sal...@gmail.com> > To: "Struts Users Mailing List" <user@struts.apache.org> > Sent: Wednesday, February 18, 2009 7:41 AM > Subject: exception in jsp file > > > > Hello, >> i m developping a web application with struts framework >> i got this error,which indicates that there a null pointer exception >> but nothing else >> any one know how can i find the null variable ... >> >> here is the exception >> >> java.lang.NullPointerException >> at >> >> org.apache.jsp.pages.CPFA_005fMensuel.saisi_005fajustement.ajust_005fcpe1_jsp._jspService(ajust_005fcpe1_jsp.java:498) >> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) >> at >> >> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331) >> at >> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) >> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) >> at >> >> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) >> at >> >> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) >> at >> >> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679) >> at >> >> org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461) >> at >> >> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399) >> at >> >> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) >> at >> >> org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1063) >> at >> >> org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263) >> at >> >> org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386) >> at >> >> org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:318) >> at >> >> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229) >> at >> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194) >> at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) >> at >> >> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) >> at >> >> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) >> at >> >> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) >> at >> >> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) >> at >> >> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) >> at >> >> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) >> at >> >> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) >> at >> >> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) >> at >> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) >> at >> >> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) >> at >> >> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) >> at >> >> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) >> at >> >> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) >> at java.lang.Thread.run(Unknown Source) >> >> Thanks >> Regards >> Elyes. >> >> > VI Conferencia Internacional de Energía Renovable, Ahorro de Energía y > Educación Energética > 9 - 12 de Junio 2009, Palacio de las Convenciones > ...Por una cultura energética sustentable > www.ciercuba.com > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > For additional commands, e-mail: user-h...@struts.apache.org > > -- Elyes.