Java server Faces

Assuntos Gerais Agile
#1

Olá

to tomando um pau pra resolver um erro q deve ser minimo , mais nao to vendo :frowning:

erro:

javax.servlet.ServletException: #{ControllerUsuario.fazNada}: javax.faces.el.EvaluationException: javax.faces.FacesException: javax.faces.FacesException: Can’t instantiate class: ‘controller.ControllerUsuario’… controller.ControllerUsuario

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

		<h:commandButton id="login" action="#{ControllerUsuario.fazNada}"
			value="Testar" />

	</h:form>
</f:view>
</body>
package controller;

import model.Usuario;



/**
 * @author christianes
 *
 */
public class ControllerUsuario {
	
	private Usuario usuario;
	
	public Usuario getUsuario() {
		return usuario;
	}

	public void setUsuario(Usuario usuario) {
		this.usuario = usuario;
	}

	public ControllerUsuario(){
		System.out.println("Bean Controller Usuario criado!");
	}
	
	public String fazNada(){
		this.usuario.setNome("Christiane");
		System.out.println("testando...");
		System.out.println(usuario.getNome());
		 return "sucesso";
	}
	
}
<faces-config>
	<managed-bean>
		<managed-bean-name>ControllerUsuario</managed-bean-name>
		<managed-bean-class>
			controller.ControllerUsuario
		</managed-bean-class>
		<managed-bean-scope>session</managed-bean-scope>
	</managed-bean>
<navigation-rule>
		<from-view-id>/pages/commons/login.jsp</from-view-id>
		<navigation-case>
			<from-outcome>sucesso</from-outcome>
			<to-view-id>
				/pages/commons/login.jsp
			</to-view-id>
		</navigation-case>
		<navigation-case>
			<from-outcome>falha</from-outcome>
			<to-view-id>
				/pages/acesso/principal.jsp
			</to-view-id>
		</navigation-case>
	</navigation-rule>

alguem poderia me ajudar?

Obrigada

#2