Hi, I have the same problem with IFrame Portlet. | org.apache.jasper.JasperException: Failed to load or instantiate TagExtraInfo class: org.jboss.portal.portlet.taglib.DefineObjectsTagTEI | | I saw your reply, but did not understand completely. Can you be more explicit regarding what changes have to be made in portlet.tld and portal.xml My portlet.tld looks as follows: | <?xml version="1.0" encoding="UTF-8"?> | | <!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd"> | <taglib> | | <tlib-version>1.0</tlib-version> | <jsp-version>1.2</jsp-version> | <short-name>portlet</short-name> | | <uri>http://java.sun.com/portlet</uri> | | <tag> | | <name>param</name> | <tag-class>org.jboss.portal.portlet.taglib.URLParameterTag</tag-class> | <body-content>empty</body-content> | | <attribute> | <name>name</name> | <required>true</required> | <rtexprvalue>true</rtexprvalue> | | </attribute> | <attribute> | <name>value</name> | <required>true</required> | <rtexprvalue>true</rtexprvalue> | | </attribute> | | </tag> | <tag> | | <name>defineObjects</name> | <tag-class>org.jboss.portal.portlet.taglib.DefineObjectsTag</tag-class> | <tei-class>org.jboss.portal.portlet.taglib.DefineObjectsTagTEI</tei-class> | <body-content>empty</body-content> | | </tag> | <tag> | | <name>namespace</name> | <tag-class>org.jboss.portal.portlet.taglib.NamespaceTag</tag-class> | <body-content>empty</body-content> | | </tag> | <tag> | | <name>renderURL</name> | <tag-class>org.jboss.portal.portlet.taglib.RenderURLTag</tag-class> | <tei-class>org.jboss.portal.portlet.taglib.GenerateURLTagTEI</tei-class> | <body-content>JSP</body-content> | | <attribute> | <name>portletMode</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | <attribute> | <name>secure</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | <attribute> | <name>var</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | <attribute> | <name>windowState</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | | </tag> | <tag> | | <name>actionURL</name> | <tag-class>org.jboss.portal.portlet.taglib.ActionURLTag</tag-class> | <tei-class>org.jboss.portal.portlet.taglib.GenerateURLTagTEI</tei-class> | <body-content>JSP</body-content> | | <attribute> | <name>portletMode</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | <attribute> | <name>secure</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | <attribute> | <name>var</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | <attribute> | <name>windowState</name> | <rtexprvalue>true</rtexprvalue> | | </attribute> | | </tag> | | </taglib> | | My Portlet.xml looks ad follows | <?xml version="1.0" encoding="UTF-8"?> | <portlet-app xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd" | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_1... /opt/SUNWps/dtd/portlet.xsd" | version="1.0"> | <portlet> | <portlet-name>IFramePortlet</portlet-name> | <portlet-class>org.jboss.portlet.iframe.IFramePortlet</portlet-class> | <supports> | <mime-type>text/html</mime-type> | <portlet-mode>VIEW</portlet-mode> | <portlet-mode>EDIT</portlet-mode> | </supports> | <portlet-info> | <title>IFrame</title> | </portlet-info> | </portlet> | </portlet-app> | I am using JbossPortal 2.4 thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981373#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...