Liferay 6.0.6: portlet:defineObjects NullPointerException

[Luca Andreatta, geändert vor 12 Jahren.]

Hi all,
I have a problem deployng a portlet in Liferay 6.0.6 bundled with JBoss.
When I try to access the portlet I get a NullPointerException in the compiled jsp.

In particular I get it when it try to execute the compiled code of the liferay tag <portlet:defineObjects/>:

//  portlet:defineObjects
      com.liferay.taglib.portlet.DefineObjectsTag _jspx_th_portlet_005fdefineObjects_005f0 = (new com.liferay.taglib.portlet.DefineObjectsTag());
      _jsp_instancemanager.newInstance(_jspx_th_portlet_005fdefineObjects_005f0); //<-- HERE I get the Nullpointer!

It is very odd because if I deploy it in Liferay 6.0.6 bundled with Tomcat everithing works fine!

Anyone can help me?

The header of the jsp:

<%@ page language="java"
         extends="it.eng.spago.dispatching.httpchannel.AbstractHttpJspPagePortlet"
         contentType="text/html; charset=ISO-8859-1"
         pageEncoding="ISO-8859-1"
         session="true"
         isELIgnored="false"
%>

<%@ page import="it.eng.spago.base.*,
				 it.eng.cmmi.project.utilities.AttributeUtilities"%>

<%@ taglib uri="/WEB-INF/tld/spago.tld" prefix="spago" %>
<%@ taglib uri="/WEB-INF/tld/cmmi.tld" prefix="cmmi" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="display" uri="http://displaytag.sf.net" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="portlet" uri="http://java.sun.com/portlet" %>
<%@ taglib prefix="liferay-theme" uri="http://liferay.com/tld/theme" %>
<%@ taglib prefix="liferay-ui" uri="http://liferay.com/tld/ui" %>

<%@ page import="javax.portlet.PortletContext"%>
<%@ page import="com.liferay.portal.theme.ThemeDisplay"%>
<%@ page import="com.liferay.portal.util.PortalUtil" %>


<portlet:defineobjects />
<liferay-theme:defineobjects />

<c:set var="contextPath">&lt;%=renderResponse.encodeURL(renderRequest.getContextPath())%&gt;</c:set>

[Luca Andreatta, geändert vor 12 Jahren.]

The problem was that my jsp was extending another class that caused the problem:

extends="it.eng.spago.dispatching.httpchannel.AbstractHttpJspPagePortlet"

Removing it solved the problem.

Thanks to all.