Howdy, You're call setErrorHandler with a null argument (exh) is null. That's why the error happens. Make sure you have an actual error handler that's not null before you call that method.
Yoav Shapira Millennium ChemInformatics >-----Original Message----- >From: Nicolas Fabry [mailto:[EMAIL PROTECTED] >Sent: Wednesday, November 05, 2003 3:14 PM >To: Tomcat Users List >Subject: Re: Problem with JSP to access XML files > >(xpert is a package for all my classes) > >I put in attachements the differents files who are responsibles of this >error. >The error appears in the method LoadXML in the DocXML.java file > >the line wich is the cause of this problem is : >myReader.setErrorHandler(exh); > >Thank you very much for your help > > > > >----- Original Message ----- >From: "Shapira, Yoav" <[EMAIL PROTECTED]> >To: "Tomcat Users List" <[EMAIL PROTECTED]> >Sent: Wednesday, November 05, 2003 2:50 PM >Subject: RE: Problem with JSP to access XML files > > >> >> Howdy, >> Post the relevant part of Users.java and DocXML.java. >> >> Yoav Shapira >> Millennium ChemInformatics >> >> >> >-----Original Message----- >> >From: Nicolas Fabry [mailto:[EMAIL PROTECTED] >> >Sent: Wednesday, November 05, 2003 2:34 PM >> >To: Tomcat Users List >> >Subject: Problem with JSP to access XML files >> > >> >Hello, >> >I have a problem since one week. >> >I have to upgrade an existing system working with JSP and XML files. >> >There is a login page written in .jsp and the login/password are >> written in >> >a XML file. >> >Any time I try tu access the system (by loggin), a compilation error >> >appear. >> >I'm using TOMCAT 4.1.29 and J2SDK 1.4.1_05. >> >It's a little bit long, but you can have a look just to the firsts >> lines of >> >the ROOT CAUSE (and the exception) >> > >> > >> > >> > >> >HTTP Status 500 - >> > >> >----------------------------------------------------------------------- >> ---- >> >- >> >---- >> > >> >type Exception report >> > >> >message >> > >> >description The server encountered an internal error () that prevented >> it >> >from fulfilling this request. >> > >> >exception >> > >> >org.apache.jasper.JasperException >> > at >> >org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.j >> ava: >> >2 >> >54) >> > 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(Applic >> atio >> >n >> >FilterChain.java:247) >> > at >> >org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFil >> terC >> >h >> >ain.java:193) >> > at >> >org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVal >> ve.j >> >a >> >va:256) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:643) >> > at >> >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: >> 480) >> > at >> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) >> > at >> >org.apache.catalina.core.StandardContextValve.invoke(StandardContextVal >> ve.j >> >a >> >va:191) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:643) >> > at >> >org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticato >> rBas >> >e >> >.java:494) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:641) >> > at >> >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: >> 480) >> > at >> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) >> > at >> >org.apache.catalina.core.StandardContext.invoke(StandardContext.java:24 >> 17) >> > at >> >org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.jav >> a:18 >> >0 >> >) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:643) >> > at >> >org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherV >> alve >> >. >> >java:171) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:641) >> > at >> >org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.jav >> a:17 >> >2 >> >) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(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 >> .jav >> >a >> >:174) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:643) >> > at >> >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: >> 480) >> > at >> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) >> > at >> org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:193) >> > at >> >org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:7 >> 81) >> > at >> >org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process >> Conn >> >e >> >ction(Http11Protocol.java:549) >> > at >> >org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:5 >> 89) >> > at >> >org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPoo >> l.ja >> >v >> >a:666) >> > at java.lang.Thread.run(Thread.java:536) >> > >> > >> >root cause >> > >> >java.lang.NullPointerException >> > at org.apache.xerces.parsers.AbstractSAXParser.setErrorHandler(Unknown >> >Source) >> > at xpert.DocXML.loadXML(DocXML.java:80) >> > at xpert.Users.checkLogin(Users.java:39) >> > at org.apache.jsp.measurer_jsp._jspService(measurer_jsp.java:57) >> > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) >> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) >> > at >> >org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.j >> ava: >> >2 >> >10) >> > at >> >org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295 >> ) >> > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) >> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) >> > at >> >org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applic >> atio >> >n >> >FilterChain.java:247) >> > at >> >org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFil >> terC >> >h >> >ain.java:193) >> > at >> >org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVal >> ve.j >> >a >> >va:256) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(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(StandardContextVal >> ve.j >> >a >> >va:191) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:643) >> > at >> >org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticato >> rBas >> >e >> >.java:494) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(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.StandardContext.invoke(StandardContext.java:24 >> 17) >> > at >> >org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.jav >> a:18 >> >0 >> >) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:643) >> > at >> >org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherV >> alve >> >. >> >java:171) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:641) >> > at >> >org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.jav >> a:17 >> >2 >> >) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(StandardPipeline.java:641) >> > at >> >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: >> 480) >> > at >> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) >> > at >> >org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve >> .jav >> >a >> >:174) >> > at >> >org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext. >> invo >> >k >> >eNext(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:193) >> > at >> >org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:7 >> 81) >> > at >> >org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process >> Conn >> >e >> >ction(Http11Protocol.java:549) >> > at >> >org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:5 >> 89) >> > at >> >org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPoo >> l.ja >> >v >> >a:666) >> > at java.lang.Thread.run(Thread.java:536) >> > >> > >> > >> >----------------------------------------------------------------------- >> ---- >> >- >> >---- >> > >> >Apache Tomcat/4.1.29 >> > >> > >> >It's maybe cause of the reference of the XML file. Have I to put >> >c:\path_to_wath_I_want or file://c:/path_to_wath_I_want? Have I to use >> >relatives links or not? >> >The XML file is like this : >> > >> > <?xml version="1.0" encoding="UTF-8" ?> >> >- <!-- edited with XMLSPY v5 U (http://www.xmlspy.com) by Alexandre >> >(Alexandre) >> > --> >> >- <users xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >> >xsi:noNamespaceSchemaLocation="./Xsd/users.xsd"> >> > <user login="nicolas" pswd="nicolas" status="admin" /> >> > </users> >> > >> > >> > >> >Really thanks to help me resolve this problem >> > >> >Nicolas Fabry >> > >> > >> >--------------------------------------------------------------------- >> >To unsubscribe, e-mail: [EMAIL PROTECTED] >> >For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> >> This e-mail, including any attachments, is a confidential business >communication, and may contain information that is confidential, >proprietary >and/or privileged. 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Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
