i am not a fundu in struts .... but still ..:) please go through the below link and check whether it make sense. Null pointer exception usually arises when we are trying to extract some values from variables which are "null". Please check whether the variables u r calling when the action is performed <html:link page="/articleForm.do">Add An Article</html:link> is taking null values. make sure that variables are not null.
http://www.junlu.com/msg/127812.html ----- Original Message ----- From: "uma.k" <[EMAIL PROTECTED]> To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]> Sent: Thursday, December 16, 2004 6:16 PM Subject: NullPointerException > I get NullPointerException when I access this index.jsp page. I also have > ApplicationResources.properties file in web-inf/classes folder > > <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %> > <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> > <html> > <head> > <title><bean:message key="title.employeeApp"/></title> > </head> > <body> > <h1><bean:message key="title.employeeApp"/></h1> > <br> > <html:link page="/articleForm.do">Add An Article</html:link> > </body> > </html> > > This is my struts-config.xml file > > <?xml version="1.0" encoding="ISO-8859-1" ?> > > <!DOCTYPE struts-config PUBLIC > "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" > "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd";> > > > <struts-config> > > <form-beans> > <form-bean name="articleForm" type="articles.ArticleForm"/> > </form-beans> > > <action-mappings> > > <action path="/articleForm" > forward="/articles/Template.jsp" /> > > <action > path="/InsertArticle" > type="articles.ArticleAction" > name="articleForm" > scope="request" > validate="false" > input="/Template.jsp"> > <forward name="success" path="/articles/preview.jsp"/> > <forward name="failure" path="/articles/Template.jsp"/> > </action> > > </action-mappings> > > <message-resources > parameter="ApplicationResources" > null="false" /> > > > </struts-config> > > > This is my complete exception > > java.lang.NullPointerException > at > org.apache.struts.taglib.TagUtils.retrieveMessageResources(TagUtils.java:121 > 9) > at org.apache.struts.taglib.TagUtils.message(TagUtils.java:1082) > at org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:226) > at org.apache.jsp.index$jsp._jspService(index$jsp.java:68) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) > at > org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja > va:201) > at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application > FilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh > ain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja > va:243) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja > va:190) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 66) > at > org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2 > 46) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180 > ) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 66) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve. > java:170) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170 > ) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java > :174) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 66) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) > at > org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java: > 1027) > at > org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125 > ) > at java.lang.Thread.run(Thread.java:595) > > > What could be wrong? 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