Null Pointer Exception during Validation in Struts

[Deepak Lal]

Hi Ranchers,
Im using Struts for validation and im facing below error...need help please to resolve this error.

org.apache.jasper.JasperException: Exception in JSP: /pages/login.jsp:15

12: <img   />
13: 
14: <html:form action="/login.do" method="POST" onsubmit="validateLoginForm(this);">
15:     <html:javascript formName="LoginForm" />
16: <center>
17: <table  border="1"   >
18: <tr>

Stacktrace:

                org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:451)
                org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
                org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
                org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
                javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause 
java.lang.NullPointerException
                org.apache.struts.taglib.html.JavascriptValidatorTag.doStartTag(JavascriptValidatorTag.java:309)
                org.apache.jsp.pages.login_jsp._jspx_meth_html_005fjavascript_005f0(login_jsp.java:212)
                org.apache.jsp.pages.login_jsp._jspx_meth_html_005fform_005f0(login_jsp.java:148)
                org.apache.jsp.pages.login_jsp._jspx_meth_html_005fhtml_005f0(login_jsp.java:114)
                org.apache.jsp.pages.login_jsp._jspService(login_jsp.java:75)
                org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
                javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
                org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
                org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
                org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
                javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

 

Please need help ranchers....

Thanks and Regards
Deepak Lal

[Vivek Singh]

Are you using some Taglib?

[Deepak Lal]

yes im using struts-html taglib.
Vivek,please need help on this....

[Deepak Lal]

Hi Ranchers,
i solved the above problem but now im facing the below issue

When i start the tomcat server , i get the below error.

INFO: Loading validation rules file from '/WEB-INF/validation.xml'
Nov 5, 2009 11:26:58 AM org.apache.struts.validator.ValidatorPlugIn initResources
SEVERE: No route to host: connect
java.net.NoRouteToHostException: No route to host: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(Unknown Source)
	at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
	at java.net.PlainSocketImpl.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at sun.net.NetworkClient.doConnect(Unknown Source)
	at sun.net.www.http.HttpClient.openServer(Unknown Source)
	at sun.net.www.http.HttpClient.openServer(Unknown Source)
	at sun.net.www.http.HttpClient.<init>(Unknown Source)
	at sun.net.www.http.HttpClient.New(Unknown Source)
	at sun.net.www.http.HttpClient.New(Unknown Source)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
	at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
	at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
	at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown Source)
	at org.apache.xerces.impl.XMLEntityManager.startDTDEntity(Unknown Source)
	at org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at org.apache.commons.digester.Digester.parse(Digester.java:1514)
	at org.apache.commons.validator.ValidatorResourcesInitializer.initialize(Unknown Source)
	at org.apache.struts.validator.ValidatorPlugIn.initResources(ValidatorPlugIn.java:238)
	at org.apache.struts.validator.ValidatorPlugIn.init(ValidatorPlugIn.java:181)
	at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:1036)
	at org.apache.struts.action.ActionServlet.init(ActionServlet.java:455)
	at javax.servlet.GenericServlet.init(GenericServlet.java:212)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3996)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4266)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:927)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:890)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1150)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)

Need help on this ranchers...

Regards
Deepak Lal