Error on using MyFaces component

[Former Member]

Hy all,

I don't know if someone as already tested to work with JSF and MyFaces on its WebAS.

In fact I've started by developping a simple JSF page

and next I would like to add some sweet component by using MyFaces and Tomawakh.

For the JSF page, no problem, it rulez, but, when I <b>just</b> add "myfaces-api-1.1.3.jar" and

"my-faces-impl-1.1.3.jar" and deploy it to my server.

No error during deploying but when I'm trying to open a

JSF page I get this long error :

#1.5#000D606F6C2B0026000000270000137800041B1DE87681AB#1155715175094#com.sap.engine.services.servlets_jsp.server.jsp.JSPParser#sap.com/NewsDisplayJSFApp#com.sap.engine.services.servlets_jsp.server.jsp.JSPParser#Guest#2####2839db702cfd11db94ff000d606f6c2b#SAPEngine_Application_Thread[impl:3]_12##0#0#Error#1#/System/Server#Plain###Runtime error in compiling of the JSP file <D:/usr/sap/DEP/JC00/j2ee/cluster/server0/apps/sap.com/NewsDisplayJSFApp/servlet_jsp/newsDisplayJSF/root/NewsError.jsp> !
The error is: java.lang.NullPointerException: null
Exception id: [000D606F6C2B0026000000260000137800041B1DE8767EC8]#
#1.5#000D606F6C2B0026000000280000137800041B1DE8768B06#1155715175094#com.sap.engine.services.servlets_jsp.client.RequestInfoServer#sap.com/NewsDisplayJSFApp#com.sap.engine.services.servlets_jsp.client.RequestInfoServer#Guest#2####2839db702cfd11db94ff000d606f6c2b#SAPEngine_Application_Thread[impl:3]_12##0#0#Error##Plain###Processing HTTP request to servlet [Faces Servlet] finished with error. The error is: com.sap.engine.services.servlets_jsp.server.exceptions.WebIOException: Internal error while parsing JSP page [D:/usr/sap/DEP/JC00/j2ee/cluster/server0/apps/sap.com/NewsDisplayJSFApp/servlet_jsp/newsDisplayJSF/root/NewsError.jsp].
	at com.sap.engine.services.servlets_jsp.server.jsp.JSPParser.parse(JSPParser.java:117)
	at com.sap.engine.services.servlets_jsp.server.servlet.JSPServlet.getClassName(JSPServlet.java:238)
	at com.sap.engine.services.servlets_jsp.server.servlet.JSPServlet.compileAndGetClassName(JSPServlet.java:429)
	at com.sap.engine.services.servlets_jsp.server.servlet.JSPServlet.service(JSPServlet.java:169)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at com.sap.engine.services.servlets_jsp.server.runtime.RequestDispatcherImpl.doWork(RequestDispatcherImpl.java:316)
	at com.sap.engine.services.servlets_jsp.server.runtime.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:372)
	at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
	at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
	at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
	at com.sap.engine.services.servlets_jsp.server.runtime.FilterChainImpl.runServlet(FilterChainImpl.java:117)
	at com.sap.engine.services.servlets_jsp.server.runtime.FilterChainImpl.doFilter(FilterChainImpl.java:62)
	at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:64)
	at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:224)
	at com.sap.engine.services.servlets_jsp.server.runtime.FilterChainImpl.doFilter(FilterChainImpl.java:58)
	at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:373)
	at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
	at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
	at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
	at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
	at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
	at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
	at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: java.lang.NullPointerException
	at com.sap.engine.services.servlets_jsp.server.jsp.JSPParser.validate(JSPParser.java:235)
	at com.sap.engine.services.servlets_jsp.server.jsp.JSPParser.initParser(JSPParser.java:348)
	at com.sap.engine.services.servlets_jsp.server.jsp.JSPParser.parse(JSPParser.java:105)
	... 30 more

I mean, in each JSP page I'm trying to use those standard taglib :

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

It crashes.

I've try to add in my web-inf/lib some jar like : servlet_api.jar, servlet.jar, and so on but nothing seam to be working.

I've also try to define the extensionFilter of myfaces in my web.xml but it doesn't help me

Anyone has an idea ? I'll give reward

Thx.

[Former Member]

Hy,

try do do this:

1) extract the JSF Tag-Lib's from the Jar-File in a folder under the WebContent folder (in my example named as "tld")

2) Add some TagLib- Entries in the WEB.XML like this:

<taglib>

<taglib-uri>http://java.sun.com/jsf/core</taglib-uri>

<taglib-location>tld/jsf_core.tld</taglib-location>

</taglib>

<taglib>

<taglib-uri>http://java.sun.com/jsf/html</taglib-uri>

<taglib-location>tld/html_basic.tld</taglib-location>

</taglib>

<taglib-uri> ist the URL that you use in the JSF Pages and <taglib-location> is the location of the expanded Tag-Libary.

The example above ist based on the Sun-Faces components but it works in the same way for Myfaces oder for the Oracle ADF faces.

Instead of the both Jar's myFaces-api and mafaces-imp I have use the myfaces-all.jar.

I hope this informatin will help you.