More: From JSF EA4 to JSF 1.0 Beat
This is a small one but a pain in the neck...
When converting to the beta you have to change *-tree-id to *-view-id in the faces config file. Sort of duh, but instead of telling you that the navigation rule was invalid JSF just throws a NullPointerException. Here is the stack trace I was getting in my browser.
java.lang.NullPointerException
com.sun.faces.context.ExternalContextImpl.dispatchMessage(ExternalContextImpl.java:287)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:144)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:89)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:209)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:196)
So just be aware that if you are getting errors like this its probably your faces config.
