When I create a custom component using jsf 2.0 (and use the component tag) using AS7.0.0 :

<tag>

  <tag-name>panelForm</tag-name>

  <component>

   <component-type>javax.faces.HtmlPanelGrid</component-type>

   <handler-class>com.hefesto.hfc.view.handler.HfPanelFormHandler</handler-class>

  </component>

</tag>

I receive a classnotfound:

Critical error during deployment: : java.lang.NoClassDefFoundError: ComponentConfig

          at java.lang.Class.getDeclaredConstructors0(Native Method) [:1.6.0_24]

          at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) [:1.6.0_24]

          at java.lang.Class.getConstructor0(Class.java:2699) [:1.6.0_24]

          at java.lang.Class.getConstructor(Class.java:1657) [:1.6.0_24]

          at com.sun.faces.facelets.tag.AbstractTagLibrary$UserComponentHandlerFactory.<init>(AbstractTagLibrary.java:293) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.facelets.tag.AbstractTagLibrary.addComponent(AbstractTagLibrary.java:525) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.facelets.tag.TagLibraryImpl.putComponent(TagLibraryImpl.java:115) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processComponent(FaceletTaglibConfigProcessor.java:569) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTags(FaceletTaglibConfigProcessor.java:361) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTagLibrary(FaceletTaglibConfigProcessor.java:314) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.process(FaceletTaglibConfigProcessor.java:263) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:341) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:226) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]

          at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3368) [jbossweb-7.0.0.CR4.jar:7.0.0.Final]

          at org.apache.catalina.core.StandardContext.start(StandardContext.java:3821) [jbossweb-7.0.0.CR4.jar:7.0.0.Final]

          at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:70) [jboss-as-web-7.0.0.Final.jar:7.0.0.Final]

          at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765)

          at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291)

          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_24]

          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_24]

          at java.lang.Thread.run(Thread.java:662) [:1.6.0_24]

Any Ideas?

Previosly on jsf 1.2, the jsf-facelets.jar was needed in the classpath, can be this the problem?