Hi , I was able to resolve the problem. I had initialized JSPTilesViewHandler instead of JSPTwoTilesViewHandler in faces-config.xml. On correcting it , I am able to view my page.
Regards, Geetika Srivastava Tata Consultancy Services Mailto: [email protected] Website: http://www.tcs.com ____________________________________________ Experience certainty. IT Services Business Solutions Outsourcing ____________________________________________ From: Werner Punz <[email protected]> To: [email protected] Date: 04/26/2010 03:07 PM Subject: Re: Error on upgrading to myfaces1.2.8 The blank page happens usually if you mix two jsp versions together (or two el versions) Werner Am 26.04.10 10:20, schrieb Geetika Srivastava: > Hi Jacob, > > Thanks for the reply . > I cleared the cache and tried running the application. > I am not getting any error but no output is being displayed i.e I am > getting a blank . > Moreover the complete page is getting printed in the logs. > > Please let me know if I am missing out on something. > > Regards, > Geetika Srivastava > Tata Consultancy Services > Mailto: [email protected] > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. IT Services > Business Solutions > Outsourcing > ____________________________________________ > > > > From: > Jakob Korherr<[email protected]> > To: > MyFaces Discussion<[email protected]> > Date: > 04/23/2010 06:56 PM > Subject: > Re: Error on upgrading to myfaces1.2.8 > Sent by: > [email protected] > > > > Hi again, > > I did some research about this problem and found some similar issues in > various different projects and frameworks (e.g. in primefaces [1]). The > real > problem seems to come from the tag library descriptor (.tld) files. > > In MyFaces 1.1.x the entry for the value attribute of h:commandButton > looks > like this: > > <attribute> > <name>value</name> > <required>false</required> > <rtexprvalue>false</rtexprvalue> > <type>java.lang.String</type> > <description><![CDATA[The initial value of this > component.]]></description> > </attribute> > > It specifies a type of java.lang.String, because Unified EL was not > included > in JSF 1.1 and thus JSF 1.1 resolved the expressions itself. In MyFaces > 1.2.x, however, the entry looks like this: > > <attribute> > <description><![CDATA[The text to display to the user for this > command component.]]></description> > <name>value</name> > <deferred-value> > <type>java.lang.Object</type> > </deferred-value> > </attribute> > > Unified Expression Language is used in JSF 1.2 and thus the entry must not > specifiy a normal type, but a type inside a deferred-value element. With > this entry the web container knows that it has to create a ValueExpression > for the given attribute. > > My guess now is that your weblogic server somehow uses the "old" .tld > files > from MyFaces 1.1.x with your application that uses MyFaces 1.2.x and thus > the Unified EL integration does not work correctly. However I don't know > why > this could be the case. Maybe a caching issue. You could try to clean up > your server and restart it. Maybe it will work then. > > I really hope this will help you! > > Regards, > Jakob > > > [1] http://primefaces.prime.com.tr/forum/viewtopic.php?f=3&t=4 > > 2010/4/23 Jakob Korherr<[email protected]> > >> Hi, >> >> Seems like a Expression Language problem. The Servlet (which is >> automatically created by Weblogic) that handles the JSP page internally >> seems to expect a ValueExpression but it (only) gets a String. So either >> something from weblogic is missing here (or does not work correctly) > that >> would create the ValueExpression out of the (Expression-)String or > weblogic >> handles plain String entries in ValueExpression-attributes wrong. >> >> You could try to push weblogic to create a ValueExpression for the two >> value attributes in your sample page by adding #{' at the begin and '} > at >> the end of the String value. So your page should look something like > this >> (some parts are cut for clarity): >> >> >> <h:outputLink value="#{'helloWorld.jsf'}"> >> <h:outputText value="#{'HelloWorld'}" /> >> </h:outputLink> >> >> This will maybe work, but you should not have to do it this way! >> >> Regards, >> Jakob >> >> 2010/4/23 Geetika Srivastava<[email protected]> >> >> Hi, >>> >>> I am trying to upgrade to myfaces 1.2.8 from myfaces 1.1.5 on weblogic >>> server 10.3. I am trying to display a simple jsf page . >>> >>> <%@ page session="false" contentType="text/html;charset=utf-8"%> >>> <%@ taglib uri="http://java.sun.com/jsf/html"; prefix="h"%> >>> <%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f"%> >>> >>> <html> >>> <f:view> >>> <f:verbatim> >>> <body> >>> >>> <h:form id="form"> >>> <h:panelGrid id="grid" columns="1"> >>> <h:outputLink value="helloWorld.jsf"> >>> <h:outputText value="HelloWorld" /> >>> </h:outputLink> >>> </h:panelGrid> >>> </h:form> >>> </body> >>> </f:verbatim> >>> </f:view> >>> </html> >>> >>> I am getting the following stack trace: >>> >>> java.lang.ClassCastException: java.lang.String cannot be cast to >>> javax.el.ValueExpression >>> at >>> jsp_servlet._pages.__login._jsp__tag3(__login.java:280) >>> at >>> jsp_servlet._pages.__login._jsp__tag2(__login.java:242) >>> at >>> jsp_servlet._pages.__login._jsp__tag1(__login.java:190) >>> at >>> jsp_servlet._pages.__login._jsp__tag0(__login.java:139) >>> at >>> jsp_servlet._pages.__login._jspService(__login.java:98) >>> at > weblogic.servlet.jsp.JspBase.service(JspBase.java:34) >>> at >>> >>> > weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) >>> at >>> >>> > weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.onAddToMapException(ServletStubImpl.java:408) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:318) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) >>> at >>> >>> > weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:502) >>> at >>> >>> > weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:251) >>> at >>> >>> > org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:341) >>> at >>> >>> > org.apache.myfaces.tomahawk.application.jsp.JspTilesViewHandlerImpl.dispatch(JspTilesViewHandlerImpl.java:236) >>> at >>> >>> > org.apache.myfaces.tomahawk.application.jsp.JspTilesViewHandlerImpl.renderView(JspTilesViewHandlerImpl.java:222) >>> at >>> >>> > org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41) >>> at >>> > org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140) >>> at >>> javax.faces.webapp.FacesServlet.service(FacesServlet.java:182) >>> at >>> >>> > weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) >>> at >>> >>> > weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) >>> at >>> >>> > weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:502) >>> at >>> >>> > weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:251) >>> at >>> weblogic.servlet.jsp.PageContextImpl.forward(PageContextImpl.java:159) >>> at jsp_servlet.__index._jspService(__index.java:202) >>> at > weblogic.servlet.jsp.JspBase.service(JspBase.java:34) >>> at >>> >>> > weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) >>> at >>> >>> > weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.onAddToMapException(ServletStubImpl.java:408) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:318) >>> at >>> >>> > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) >>> at >>> >>> > weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3495) >>> at >>> >>> > weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) >>> at >>> weblogic.security.service.SecurityManager.runAs(Unknown Source) >>> at >>> >>> > weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180) >>> at >>> >>> > weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086) >>> at >>> >>> > weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406) >>> at >>> weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) >>> at >>> weblogic.work.ExecuteThread.run(ExecuteThread.java:173) >>> >>> I have included all jars mentioned in the apache site including > tomahawk12 >>> 1.1.9 jar and have also updated the version in faces -config and > web.xml >>> >>> Please help. >>> >>> Regards, >>> Geetika Srivastava >>> Tata Consultancy Services >>> Mailto: [email protected] >>> Website: http://www.tcs.com >>> ____________________________________________ >>> Experience certainty. IT Services >>> Business Solutions >>> Outsourcing >>> ____________________________________________ >>> =====-----=====-----===== >>> Notice: The information contained in this e-mail >>> message and/or attachments to it may contain >>> confidential or privileged information. If you are >>> not the intended recipient, any dissemination, use, >>> review, distribution, printing or copying of the >>> information contained in this e-mail message >>> and/or attachments to it are strictly prohibited. If >>> you have received this communication in error, >>> please notify us by reply e-mail or telephone and >>> immediately and permanently delete the message >>> and any attachments. Thank you >>> >>> >>> >> >> >> -- >> Jakob Korherr >> >> blog: http://www.jakobk.com >> twitter: http://twitter.com/jakobkorherr >> work: http://www.irian.at >> > > > =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you
