3 Replies Latest reply on Jul 30, 2008 4:53 AM by andrei_exadel

    NullPointerException with fileUpload

    dgreenbean
    dgreenbean Jul 29, 2008 12:57 PM

      Hi,

      I can get a fileUpload component to display on my page, and all the functionality works until I press "Upload." At that point, I am getting the following error, and am guessing that I am simply overlooking something. Any help is greatly appreciated.

      Error:


      SEVERE: JSF1054: (Phase ID: APPLY_REQUEST_VALUES 2, View ID: /test.jsp) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@199c55a]
      Jul 29, 2008 12:50:53 PM org.apache.catalina.core.StandardWrapperValve invoke
      SEVERE: Servlet.service() for servlet Faces Servlet threw exception
      java.lang.NullPointerException
      at org.richfaces.renderkit.FileUploadRendererBase.doDecode(FileUploadRendererBase.java:108)
      at org.ajax4jsf.renderkit.RendererBase.decode(RendererBase.java:76)
      at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:778)
      ...


      The contents of test.jsp are as follows: 
      <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 pageEncoding="ISO-8859-1"%>

<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich"%>

<html>
 <f:view>
 <body>
 <div id="ltx-error">
 <h:messages />
 </div>
 <rich:fileUpload />
 </body>
 </f:view>
</html>


      This is with JSF RI 1.2_07, Tomcat 6.0.16, RichFaces 3.2.1.GA. Any ideas?

      Thanks,
      David

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        • 1. Re: NullPointerException with fileUpload
          dgreenbean
          dgreenbean Jul 29, 2008 1:23 PM (in response to dgreenbean)

          I have also tried

          <h:form>
 <rich:fileUpload />
</h:form>


          This gives the same error.

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          • 2. Re: NullPointerException with fileUpload
            dgreenbean
            dgreenbean Jul 29, 2008 3:41 PM (in response to dgreenbean)

            Figured it out. This is not strictly a RichFaces issue. I had Apache MyFaces ExtensionFilter configured in web.xml in order to use Tomahawk components. All multipart/form-data requests that are passed through ExtensionFilter get converted into a MultipartRequestWrapper, which always returns "application/x-www-form-urlencoded" as the contentType. The Ajax4Jsf BaseFilter does not recognize this as a multipart form request and, therefore, does not set the necessary session variable to parse the file upload. Since the FileUploadRendererBase requires this variable, a NullPointerException is thrown.

            Also, I had to get rid of Trinidad, which I wasn't using anyway.

            There is hope! Putting the ExtensionsFilter declaration (and mappings) after the RichFaces Filter declaration/mappings in web.xml seems to solve the issue.

            Thanks to anyone who looked into this.

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            • 3. Re: NullPointerException with fileUpload
              andrei_exadel Jul 30, 2008 4:53 AM (in response to dgreenbean)

              Hello. This is known issue.
              You should to configure AJAX & Extension filter to be sure that AJAX filter is processing firstly.

              Please look at the following issue: https://jira.jboss.org/jira/browse/RF-3096.
              There example attached with correctly configured filters. It works fine with myfaces.
              Look at those web.xml and keep the same filter declaration ordering and mapping.

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