Custom UIComponent not working. Cannot instantiate component
pumuggel May 7, 2010 7:28 PMHey guys,
I've got a serious problem a custom UIComponent that I developed and tried to use in my application.
First of all here is some code and configuration stuff that makes up my component:
1. the UIComponent class:
====================================
2. The Facelets - taglib.xml (real name: cockpit.taglib.xml which resides in the META-INF - dir)
====================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE facelet-taglib PUBLIC
"-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN"
"http://java.sun.com/dtd/facelet-taglib_1_0.dtd">
<facelet-taglib>
<namespace>http://wirtschaftsinformatiker.name/cockpit</namespace>
<tag>
<tag-name>cockpit</tag-name>
<component>
<component-type>de.bobdesign.bobnet.custom.CockpitUIComponent</component-type>
</component>
</tag>
</facelet-taglib>
3. TLD - (real name: cockpit.tld which resides in the META-INF - dir)
====================================
<?xml version="1.0" encoding="UTF-8"?>
<taglib
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="2.1">
<tlib-version>1.1</tlib-version>
<short-name>cockpit</short-name>
<uri>http://wirtschaftsinformatiker.name/cockpit</uri>
<tag>
<name>cockpit</name>
<tag-class>de.bobdesign.bobnet.custom.CockpitTag</tag-class>
<body-content>empty</body-content>
</tag>
</taglib>
4. web.xml - context parameter
====================================
<context-param>
<param-name>facelets.LIBRARIES</param-name>
<param-value>/META-INF/cockpit.taglib.xml</param-value>
</context-param>
5. faces-config.xml - component definition
====================================
<component>
<component-type>de.bobdesign.bobnet.custom.Cockpit</component-type>
<component-class>de.bobdesign.bobnet.custom.CockpitUIComponent</component-class>
</component>
6. home.xhtml - which should display my component
====================================
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ch="http://wirtschaftsinformatiker.name/cockpit"
xmlns:ui="http://java.sun.com/jsf/facelets"
template="../template/template.xhtml">
<ui:define name="body">
<ch:cockpit/>
</ui:define>
</ui:composition>
All this leads to the following error in my server.log:
====================================
2010-05-08 02:03:12,671 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (http-192.168.2.100-8080-6) JSF1004: Cannot instantiate component of type de.bobdesign.bobnet.custom.CockpitUIComponent
2010-05-08 02:03:12,671 ERROR [facelets.viewhandler] (http-192.168.2.100-8080-6) Error Rendering View[/co/home.xhtml]
javax.faces.FacesException: Expression Error: Object: de.bobdesign.bobnet.custom.CockpitUIComponent wurde nicht gefunden.
at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:570)
at org.jboss.seam.jsf.SeamApplication.createComponent(SeamApplication.java:92)
at com.sun.facelets.tag.jsf.ComponentHandler.createComponent(ComponentHandler.java:243)
at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:139)
at com.sun.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java:64)
at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:131)
at com.sun.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java:337)
at com.sun.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:307)
at com.sun.facelets.tag.ui.InsertHandler.apply(InsertHandler.java:68)
at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
at com.sun.facelets.tag.jsf.core.ViewHandler.apply(ViewHandler.java:109)
at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:248)
at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:294)
at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:273)
at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:140)
at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:113)
at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
at com.sun.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:95)
at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:524)
at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:567)
at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100)
at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:390)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:517)
at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
I mess around for over a day now and I've completly no idea where the problem could be.
Any ideas what this might cause? Thanx in advance!!!
Regards CH