Outro problema com primeFaces

Assuntos Gerais
#1

Pessoal quando clico em novo para abrir o dialog do prime gera a seguinte menssagem de erro

javax.faces.FacesException: Unexpected error restoring state for component with id j_idt3.  Cause: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0.
	at com.sun.faces.application.view.StateManagementStrategyImpl$1.visit(StateManagementStrategyImpl.java:273)
	at com.sun.faces.component.visit.FullVisitContext.invokeVisitCallback(FullVisitContext.java:151)
	at javax.faces.component.UIComponent.visitTree(UIComponent.java:1485)
	at javax.faces.component.UIComponent.visitTree(UIComponent.java:1496)
	at com.sun.faces.component.visit.VisitUtils.doFullNonIteratingVisit(VisitUtils.java:75)
	at com.sun.faces.application.view.StateManagementStrategyImpl.restoreView(StateManagementStrategyImpl.java:257)
	at com.sun.faces.application.StateManagerImpl.restoreView(StateManagerImpl.java:181)
	at com.sun.faces.application.view.ViewHandlingStrategy.restoreView(ViewHandlingStrategy.java:123)
	at com.sun.faces.application.view.FaceletViewHandlingStrategy.restoreView(FaceletViewHandlingStrategy.java:448)
	at com.sun.faces.application.view.MultiViewHandler.restoreView(MultiViewHandler.java:148)
	at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:187)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:111)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:383)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.RangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at javax.faces.component.AttachedObjectListHolder.restoreState(AttachedObjectListHolder.java:165)
	at javax.faces.component.UIComponentBase.restoreState(UIComponentBase.java:1432)
	at com.sun.faces.application.view.StateManagementStrategyImpl$1.visit(StateManagementStrategyImpl.java:265)
	... 29 more

meu código

cadastroCliente.xhtml

<?xml version="1.0" encoding="ISO-8859-1" ?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:p="http://primefaces.prime.com.tr/ui"
	xmlns:f="http://java.sun.com/jsf/core">
<h:head>
	<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
	<title>Cadastro de Clientes</title>
</h:head>
	<h:body>
		<h:form id="frmGridCliente">
			<p:growl id="menssagensCliente"
					 life="3000"/>  
			<p:dataTable widgetVar="dtClientes"
						 var="cliente" 
						 value="#{mbCliente.clientes}" 
						 paginator="true"
						 rows="10" 
						 selection="#{mbCliente.cliente}" 
						 selectionMode="single"
				         onRowSelectUpdate="display" 
				         onRowSelectComplete="dlgCliente.show()"
				         emptyMessage="Nao existe cliente cadastrado"
				         style="width:70%"
				         update="dlgCliente"
				         rowSelectListener="#{mbCliente.mudar}">
	 			<p:column sortBy="#{cliente.id}" 
				          filterBy="#{cliente.id}"
				          style="width:20%">
					<f:facet name="header">
						<h:outputText value="Id" />
					</f:facet>
					<h:outputText value="#{cliente.id}" />
				</p:column>
	 			<p:column sortBy="#{cliente.nome}" 
				          filterBy="#{cliente.nome}">
					<f:facet name="header">
						<h:outputText value="Nome" />
					</f:facet>
					<h:outputText value="#{cliente.nome}" />
				</p:column>
	 			<p:column sortBy="#{cliente.cnpj}" 
					      filterBy="#{cliente.cnpj}">
					<f:facet name="header">
						<h:outputText value="Cnpj" />
					</f:facet>
					<h:outputText value="#{cliente.cnpj}" />
				</p:column>
			</p:dataTable>
			<p:panel style="width:69.2%">
				<p:commandLink title="Novo"
				               oncomplete="dlgCliente.show();"
				               action="#{mbCliente.novo}"
				               update="frmCadastroCliente">
					<p:graphicImage url="/imagens/novo.jpg"
									style="border:0"/>
				</p:commandLink>
				<p:commandLink title="Apagar"
			               action="#{mbCliente.apagar}"
			               style="margin-left:20px"
			               update="frmCliente">
					<p:graphicImage url="/imagens/apagar.jpg"
									style="border:0"/>
				</p:commandLink>
				<p:commandLink title="Voltar"
			      	         action="#{mbCliente.voltar}"
			    	           ajax="false"
			        	       style="margin-left:20px">
					<h:graphicImage url="/imagens/voltar.jpg"
									style="border:0"/>
				</p:commandLink>
			</p:panel>
		</h:form>		
		<h:form id="frmCadastroCliente">
			<p:dialog id="dlgCliente"
					  widgetVar="dlgCliente"
		       		  header="Cliente"
					  width="500">
				<h:panelGrid columns="2" >
					<h:outputLabel value="Id" 
		   			   	           for="itxId" />
					<p:inputText id="itxId"
							     value="#{mbCliente.cliente.id}" 
							     immediate="false"
							     disabled="true"/>
					<h:outputLabel value="Nome" 
		   			   	           for="itxNome" />
					<p:inputText id="itxNome"
							     value="#{mbCliente.cliente.nome}" 
							     size="35"/>
					<h:outputLabel value="CNPJ" 
		   			   	           for="itxCnpj" />
					<p:inputText id="itxCnpj"
							     value="#{mbCliente.cliente.cnpj}"/>
				</h:panelGrid>
				<h:panelGrid columns="3">
					<p:commandLink title="Gravar"
				                   actionListener="#{mbCliente.gravar}"
				                   rendered="#{empty mbCliente.cliente.id}"
				                   update="menssagensCliente, itxId, itxCnpj, itxNome, frmGridCliente">
					<p:graphicImage url="/imagens/gravar.jpg"
									style="border:0"/>
					</p:commandLink>
					<p:commandLink title="Alterar"
				                   actionListener="#{mbCliente.alterar}"
				                   rendered="#{!empty mbCliente.cliente.id}"
				                   update="menssagensCliente, itxId, itxCnpj, itxNome, frmGridCliente">
					<p:graphicImage url="/imagens/alterar.jpg"
									style="border:0"/>
					</p:commandLink>
				</h:panelGrid>
			</p:dialog>
		</h:form>
	</h:body>
</html>

mbCliente

package controladores;


import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.event.ActionEvent;

import org.primefaces.event.RowEditEvent;
import org.primefaces.event.SelectEvent;

import negocios.ClienteBO;
import entidades.Cliente;


@ViewScoped
@ManagedBean(name="mbCliente")
public class MBCliente implements Serializable {
	
	private static final long serialVersionUID = 4718957167100835066L;
	private ClienteBO clienteBO;
	public Cliente cliente;
	private List<Cliente> clientes;
		
	
	public MBCliente(){
		this.setClienteBO(new ClienteBO());
	    this.setCliente(new Cliente());
		this.setClientes(new ArrayList<Cliente>());
	}

	public ClienteBO getClienteBO() {
		return clienteBO;
	}

	public void setClienteBO(ClienteBO clienteBO) {
		this.clienteBO = clienteBO;
	}

	public Cliente getCliente() {
		return cliente;
	}

	public void setCliente(Cliente cliente) {
		this.cliente = cliente;
	}

	public List<Cliente> getClientes() {
		return clientes;
	}

	public void setClientes(List<Cliente> clientes) {
		this.clientes = clientes;
	}
	
	public void novo(){
		this.setCliente(new Cliente());
	}
	
	public void gravar(ActionEvent evento){
		try {
			System.out.println(cliente.getNome()+ " mbCliente");
			System.out.println(cliente.getCnpj()+ "mbCliente");				
			this.getClienteBO().gravar(this.getCliente());
			this.getClientes().add(this.getCliente());
			this.setCliente(new Cliente());
			JSFUtil.enviarMenssagemSucesso("Cliente gravado com sucesso");
		} catch (Exception e) {
			JSFUtil.enviarMenssagemErro("Erro ao gravar"+" "+e.getMessage() );
		}
	}
	
	public void alterar(ActionEvent evento) {
		try {
			this.getClienteBO().gravar(this.getCliente());
			this.getClientes().remove(this.getCliente());
			this.getClientes().add(this.getCliente());
			JSFUtil.enviarMenssagemSucesso("Cliente alterado com sucesso");
		} catch (Exception e) {
			JSFUtil.enviarMenssagemErro("Erro ao alterar"+" "+e.getMessage() );
		}
	}

	public void apagar() {
		try {
			System.out.println("apagarr tudo");
			this.getClienteBO().gravar(this.getCliente());
			this.getClientes().remove(this.getCliente());
			JSFUtil.enviarMenssagemSucesso("Cliente apagado com sucesso");
			System.out.println("apagarr tudo");
		} catch (Exception e) {
			JSFUtil.enviarMenssagemErro("Erro ao apagar"+" "+e.getMessage() );
		}
	}
	
	public List<Cliente> listar(){ 
		List<Cliente> clientes = new ArrayList<Cliente>();
		try {
			clientes = this.getClienteBO().listar();
		} catch (Exception e) {
			JSFUtil.enviarMenssagemErro("Erro ao Listar"+" "+e.getMessage() );
		}
		return clientes;
	}
			
	public void mudar(SelectEvent evento){
		System.out.println("Nomee " +this.getCliente().getNome());
	}
	
	public String voltar(){
		return "index";
	}
}

Deste já agradeço

#2

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#3