Jasper Exception

Hi,

I have a web application with tomcat 4.06 and i have eventually the following message error:

2007-02-21 09:16:39 ApplicationDispatcher[/SistemaSalud] Servlet.service() for servlet debugjsp threw exception

org.apache.jasper.JasperException

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:207)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:627)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:382)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:306)

at modeloSS.excepciones.MailError.gotoPage(MailError.java:69)

at modeloSS.excepciones.MailError.<init>(MailError.java:50)

at servletsSS.ServletAdmSesion.logout(ServletAdmSesion.java:137)

at servletsSS.ServletAdmSesion.doGet(ServletAdmSesion.java:78)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)

at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)

at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:534)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)

at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)

at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)

at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)

at java.lang.Thread.run(Thread.java:534)

- Root Cause --

java.lang.NullPointerException

at org.apache.jsp.FormMailError_jsp._jspService(FormMailError_jsp.java:77)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:92)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:162)