You'll have to provide more information, perhaps your web.xml and faces config etc...

But from what I can see immediately is that you have com.sun.* stuff in your setup. I presume you're trying to use myfaces exclusively. In that case make sure you dont have any Sun JSF jars anywhere.. and then clean out all the Tomcat work/temp files. I'll assume you're using Tomcat.

Really though, you need to provide MUCH more information when asking questions like this, in ANY forum.

On 11/17/05, Katareek < [EMAIL PROTECTED]> wrote:
Hi,

I have got the following exception and I do not know where is the problem:
Can You help me ?

javax.servlet.ServletException: javax.servlet.jsp.JspException: null
        org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:844)
        org.apache.jasper.runtime.PageContextImpl.handlePageException (PageContextImpl.java:781)
        org.apache.jsp.test.myfaces_005fdt_jsp._jspService(org.apache.jsp.test.myfaces_005fdt_jsp:125)
        org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        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:802)
        com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java :322)
        com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
        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)

*root cause*

java.lang.NullPointerException
        com.sun.faces.renderkit.html_basic.CommandLinkRenderer.getHiddenFieldName(CommandLinkRenderer.java:136)
        com.sun.faces.renderkit.html_basic.CommandLinkRenderer.encodeEnd(CommandLinkRenderer.java:318)
        javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:720)
        org.apache.myfaces.custom.datascroller.HtmlDataScrollerRenderer.renderFacet(HtmlDataScrollerRenderer.java:294)
        org.apache.myfaces.custom.datascroller.HtmlDataScrollerRenderer.renderScroller (HtmlDataScrollerRenderer.java:236)
        org.apache.myfaces.custom.datascroller.HtmlDataScrollerRenderer.encodeEnd(HtmlDataScrollerRenderer.java:207)
        javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java :720)
        com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:443)
        com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:233)
         javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:701)
        com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:435)
        com.sun.faces.renderkit.html_basic.GroupRenderer.encodeChildren (GroupRenderer.java:130)
        javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:701)
        javax.faces.webapp.UIComponentTag.encodeChildren(UIComponentTag.java:607)
        javax.faces.webapp.UIComponentTag.doEndTag (UIComponentTag.java:544)
        com.sun.faces.taglib.html_basic.PanelGroupTag.doEndTag(PanelGroupTag.java:116)
        org.apache.jsp.test.myfaces_005fdt_jsp._jspx_meth_h_panelGroup_0(org.apache.jsp.test.myfaces_005fdt_jsp:197 )
        org.apache.jsp.test.myfaces_005fdt_jsp._jspx_meth_f_view_0(org.apache.jsp.test.myfaces_005fdt_jsp:153)
        org.apache.jsp.test.myfaces_005fdt_jsp._jspService(org.apache.jsp.test.myfaces_005fdt_jsp:112)
        org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        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 :802)
        com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
        com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
        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)


regards



--
Grant Smith

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