Sorry about this, it seems like my attachments have not worked properly.
The files should be stacktrace.txt and snippet.jsp for the code example.


sorry!
Ben




Ben Zahler/Switzerland/[EMAIL PROTECTED]

13.09.2006 09:05

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Using IBM JSF components on tomcat






hi all,


I have a problem when using IBM-JSF components on tomcat. I know that is not a very usual configuration, maybe someone has had similar problems.



This is the code which causes the problem:



And this is the Stacktrace displayed by IE:




Unfortunately, the error occurs in proprietary code, so it is difficult to track the cause of the problem.


Here a few properties of the problem:

- The problem does not occur when using a websphere server

- the problem does not occur when using firefox

- when using tomcat and IE, the problem does not always occur. Depending on the configuration the problem occurs between 5% and 50% of pages loaded. With my laptop and a local tomcat I get 5% in our IBM test environment and 50% at the client's test environment.

- the problem only occurs on large pages

- removing the id from the <selectitems>-tag will lead to "duplicate ids on this page", the given id is a generated id.  I suspect a relationship between that error and the error I get now, but obviously I cannot confirm that.


I'd be very grateful for any suggestions!


thanks,


Ben[attachment "stacktrace.txt" deleted by Ben Zahler/Switzerland/IBM]
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org.apache.jasper.JasperException: javax.servlet.jsp.JspException: null
                 
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
                 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
                 
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.ibm.faces.context.MultipartExternalContextImpl.dispatch(MultipartExternalContextImpl.java:411)
                 
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:295)
                 
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
                 
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:217)
                 
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
                 javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)

root cause 
javax.servlet.ServletException: javax.servlet.jsp.JspException: null
                 
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:854)
                 
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
                 
org.apache.jsp.searchTKS_jsp._jspService(searchTKS_jsp.java:214)
                 
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: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:802)
                 
com.ibm.faces.context.MultipartExternalContextImpl.dispatch(MultipartExternalContextImpl.java:411)
                 
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:295)
                 
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
                 
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:217)
                 
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
                 javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)

root cause 
java.lang.NullPointerException
                 
com.ibm.faces.renderkit.html_extended.AssistRenderer.encode(AssistRenderer.java:82)
                 
com.ibm.faces.renderkit.html_extended.AssistRenderer.contributeScript(AssistRenderer.java:76)
                 
com.ibm.faces.renderkit.html_extended.ScriptCollectorRenderer.encodeEnd(ScriptCollectorRenderer.java:146)
                 
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:726)
                 
javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:604)
                 
javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:527)
                 
com.ibm.faces.taglib.html_extended.ScriptCollectorTag.doEndTag(ScriptCollectorTag.java:127)
                 
org.apache.jsp.searchTKS_jsp._jspx_meth_hx_scriptCollector_0(searchTKS_jsp.java:346)
                 
org.apache.jsp.searchTKS_jsp._jspx_meth_f_view_0(searchTKS_jsp.java:240)
                 
org.apache.jsp.searchTKS_jsp._jspService(searchTKS_jsp.java:203)
                 
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: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:802)
                 
com.ibm.faces.context.MultipartExternalContextImpl.dispatch(MultipartExternalContextImpl.java:411)
                 
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:295)
                 
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
                 
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:217)
                 
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
                 javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
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