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Urs Wagner
Greenhorn
Posts: 9
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What shall I do? Since yesterday I get this exception stack in my JSF app.

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)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:693)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:660)
org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:45)
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)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)

root cause

java.lang.NullPointerException
javax.faces.webapp.UIComponentTag.setupResponseWriter(UIComponentTag.java:646)
javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:254)
org.apache.myfaces.taglib.core.ViewTag.doStartTag(ViewTag.java:71)
org.apache.jsp.login_jsp._jspx_meth_f_view_0(org.apache.jsp.login_jsp:120)
org.apache.jsp.login_jsp._jspService(org.apache.jsp.login_jsp:93)
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)
org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:693)
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:660)
org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:45)
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)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
 
Sajan Patel
Ranch Hand
Posts: 77
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hi Sorry because This description is not enough for me to understand your problem.

but you are passing null Object somewhere and you are calling some method from that NULL Object



In Above code, I am calling getTime() method from GregCal object which return java.util.Date. If myGregCalen is null and I try to call getTime() method than it will throw nullPointer exception so try to find If you are doing such thing in your JSP.

I hope this solve your poblem
 
Adrian Marti
Greenhorn
Posts: 11
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i had this problem when i was incorrectly using .jsp links instead of .faces links. Pretty sure it just has to do with the web.xml mapping. The error was absolutely no help in finding this.

Adrian
 
Karthik Chinnayan
Greenhorn
Posts: 3
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Hi Urs,
I was having the same problem and infact saw ur posting online in this forum when I was searching for a solution. Please read the section 9.9 in the following link http://docs.jboss.org/jbossas/jboss4guide/r4/html/ch9.chapt.html
It mentions about removing the MyFaces libraries if you are going to use JSF only.

Mine was a pure JSF application, so I removed the following directory
from my JBOSS installation (this dir has few myfaces.jar files that are included by default in the JBOSS installation).
dir name ==> jbossweb-tomcat55.sar/jsf-lib

But, i made sure I have all the necessary libraries (.jar files) in my application. In my case, I have jsf-api.jar, jsf-impl.jar along with other commons...jar files. in the "WEB-INF/lib" folder of my application directory.

After doing these steps, I was able to successfully deploy my JSF application in JBOSS without any errors.

I assume the problem u have is similar/same as mine and this approach will solve it.

All the best with ur work.
-Ceeeyem
[ November 16, 2005: Message edited by: Karthik Chinnayan ]
 
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