[Edward Tsai]

Dear Sir,

I’m learning JSF using JSFLoginDemo from you step by step, but I encounter the following error message:

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
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:147)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)

root cause

java.lang.NullPointerException
javax.faces.webapp.UIComponentTag.setupResponseWriter(UIComponentTag.java:615)
javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:217)
org.apache.myfaces.taglib.core.ViewTag.doStartTag(ViewTag.java:71)
org.apache.jsp.userLogin_jsp._jspx_meth_f_view_0(org.apache.jsp.userLogin_jsp:130)
org.apache.jsp.userLogin_jsp._jspService(org.apache.jsp.userLogin_jsp:105)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:147)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5 logs.

I use JBoss 4 with package archived deploy type.

Thanks for your help in advance.

Best,
Edward Tsai

[Riyad Kalla]

Edward,
What URL are you using to access your webpage? (The exact one from your browser)

[Edward Tsai]

http://localhost:8080/JSFLoginDemo/userLogin.faces

[Riyad Kalla]

We just recieved an email about this exact question this morning at our support@ address, was that you? (in which case the issue was resolved) or no?

[Edward Tsai]

I posted the URL I used yesterday. The problem is not solved yet.

[Riyad Kalla]

Can you export your project to an archive and email it to suport@myeclipseide.com ATTN Riyad with a link to this forum so I know why I’m getting it, I’ll have a look.

[Edward Tsai]

I’ve downloaded the sample project JSFLoginDemoProject and import into MyEclipse IDE and tried again, but got the same error message as above. Does this mean there should be something wrong in my MyEclipse environment? Please advise, thanks.

Edward Tsai

[Riyad Kalla]

Edward,
My guess is that there is something wrong with your Tomcat install. I would suggest doing a fresh install of TOmcat to a new directory to rule out any 3rd party libraries installed.

[Edward Tsai]

I have reinstalled eclipse 3.1.2, and then reinstalled myeclipse 4.1.1, and then downloaded and reinstalled JBoss 4.0.4. And I tried to run JSFLoginDemo again, I got the similar error message as below:

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: Exception in JSP: /userLogin.jsp:11

8: <title>My JSF ‘userLogin.jsp’ starting page</title>
9: </head>
10: <body>
11: <f:view>
12: <f:loadBundle basename=”com.jsfdemo.MessageBundle” var=”bundle”/>
13:
14: <h:form id=”loginForm”>

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:147)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

java.lang.NullPointerException
javax.faces.webapp.UIComponentTag.setupResponseWriter(UIComponentTag.java:615)
javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:217)
org.apache.myfaces.taglib.core.ViewTag.doStartTag(ViewTag.java:71)
org.apache.jsp.userLogin_jsp._jspx_meth_f_view_0(userLogin_jsp.java:112)
org.apache.jsp.userLogin_jsp._jspService(userLogin_jsp.java:87)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:147)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.

——————————————————————————–

Apache Tomcat/5.5.1

Thanks for your help.

Best,
Edward TSai

[Riyad Kalla]

Edward,
In your web.xml file, what extension did you map the FacesServlet to? What URL are you using to access your JSP page? If f:view is throwing the exception my guess is that you are either trying to access the page using the .jsp extension in which case you are removing the FacesServlet from the process loop and f:view is dying because it cannot find the FacesContext or your setup is borked.

[Edward Tsai]

the web.xml context is as below:

<?xml version=”1.0″ encoding=”UTF-8″?>
<web-app xmlns=”http://java.sun.com/xml/ns/j2ee&#8221; xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance&#8221; version=”2.4″ xsi:schemaLocation=”http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd”&gt;
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/faces-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>3</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>3</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
</web-app>

The faces-config.xml content is as below:

<?xml version=”1.0″ encoding=”UTF-8″?>
<!DOCTYPE faces-config PUBLIC “-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN” “http://java.sun.com/dtd/web-facesconfig_1_1.dtd”&gt;
<faces-config>
<navigation-rule>
<from-view-id>/userLogin.jsp</from-view-id>
<navigation-case>
<from-outcome>success</from-outcome>
<to-view-id>/userLoginSuccess.jsp</to-view-id>
</navigation-case>
<navigation-case>
<from-outcome>failure</from-outcome>
<to-view-id>/userLogin.jsp</to-view-id>
</navigation-case>
</navigation-rule>
<managed-bean>
<description>Bean used to handle all User-based operations.</description>
<managed-bean-name>UserBean</managed-bean-name>
<managed-bean-class>com.jsfdemo.bean.UserBean</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
</faces-config>

and the URL I used is “http://localhost:8080/JSFLoginDemo/userLogin.faces&#8221;

Thanks for your great help again.

Best,
Edward Tsai

[Riyad Kalla]

Everything looks good. If you look in your Tomcat/lib, common/lib or server/lib directories, do you see any JSF JARs? There shouldn’t be any.

[Edward Tsai]

Dear Riyad,

I only found 2 JSF JARs under JBoss installation directory, which are jsf-impl.jar and jsf-api.jar in the following directory:
F:\jboss-4.0.4.GA\server\default\deploy\JSFLoginDemo.war\WEB-INF\lib

Best,
Edward Tsai

[Riyad Kalla]

Strange, all of that looks OK.

Can you export your project to a ZIP file and email it to me at support@genuitec.com ATTN Riyad with a link to this post so I know why I’m getting it?

[Riyad Kalla]

This message has not been recovered.

[Author]

Posts