[ http://issues.apache.org/jira/browse/TAPESTRY-174?page=all ]
Jesse Kuhnert resolved TAPESTRY-174:
------------------------------------
Resolution: Won't Fix
Assign To: (was: Tapestry Developer List)
> 'page' JSP tag throws NPE when page accessed via multipart form submission
> --------------------------------------------------------------------------
>
> Key: TAPESTRY-174
> URL: http://issues.apache.org/jira/browse/TAPESTRY-174
> Project: Tapestry
> Type: Bug
> Components: Framework
> Versions: 3.0
> Environment: Operating System: Other
> Platform: Other
> Reporter: Colin Sampaleanu
>
> I have an app that is half Tapestry and half (sigh...) Struts. On a common
> link
> bar I use the tapestry page tag to create some links to some tapestry pages,
> as
> follows:
> <tapestry:page servlet='/auth' page='ManageUsers'>Users</tapestry:page>
> If I have a JSP page which does a multi-part form post to an action, and then
> that action does a normal forward to the display page, which then includes the
> above tag definition, I get a null pointer exception, as Tapestry wants to use
> the DefaultMultiPartFormDecoder, but the submission was not actually from
> tapestry.
> I think this line returns null
> return (Map) request.getAttribute(PART_MAP_ATTRIBUTE_NAME);
> which then causes a NPE on attempted usage of the partMap.
> Very very nasty. Is there any easy workaround? Stack trace follows:
> 2004-05-20 17:55:33,974 ERROR [org.jboss.web.localhost.Engine]
> ApplicationDispatcher[/qa-portal] Servlet.service() for servlet qaportal threw
> exception
> java.lang.NullPointerException
> at
> org.apache.tapestry.multipart.DefaultMultipartDecoder.cleanup(DefaultMultipartDecoder.java:120)
> at
> org.apache.tapestry.request.RequestContext.cleanup(RequestContext.java:506)
> at
> org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:285)
> at
> org.apache.tapestry.ApplicationServlet.doPost(ApplicationServlet.java:326)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
> at
> org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:575)
> at
> org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:498)
> at org.apache.tapestry.jsp.URLRetriever.insertURL(URLRetriever.java:82)
> at
> org.apache.tapestry.jsp.AbstractLinkTag.doStartTag(AbstractLinkTag.java:105)
> at
> org.apache.jsp.jadmfeditor_jsp._jspx_meth_tapestry_page_0(jadmfeditor_jsp.java:1706)
> at
> org.apache.jsp.jadmfeditor_jsp._jspx_meth_authz_authorize_4(jadmfeditor_jsp.java:1679)
> at org.apache.jsp.jadmfeditor_jsp._jspService(jadmfeditor_jsp.java:255)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:210)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
> at
> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:432)
> at
> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:356)
> at
> org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
> at
> org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
> at
> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
> at
> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
> at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
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