[Resolvido] Problemas ao editar registro - Vrator

Caros colegas, estou a alguns dias tentando montar um crud com o vraptor3.
Me baseei nestes dois tutorias para construir o crud
Tutorial 1
Toturial 2

A partir destes tutoriais criei este arquivos: Controller

package br.com.tecnihouse.controller;

import br.com.caelum.vraptor.Delete;
import br.com.caelum.vraptor.Path;
import br.com.caelum.vraptor.Post;
import br.com.caelum.vraptor.Put;
import br.com.caelum.vraptor.Resource;
import br.com.caelum.vraptor.Result;
import br.com.caelum.vraptor.Validator;
import br.com.tecnihouse.Dao.ClienteDao;
import br.com.tecnihouse.entity.BaseEntity;
import br.com.tecnihouse.entity.Cliente;
import java.util.List;

@Resource
public class ClienteController {

    private final Result result;
    private final ClienteDao dao;
    private final Validator validator;

    public ClienteController(Result result, ClienteDao dao, Validator validator) {
        this.result = result;
        this.dao = dao;
        this.validator = validator;
    }

    @Path("/cliente/listar")
    public void listar() {
        List<BaseEntity> clientes = dao.selectByNamedQuery("Cliente.findAll");
        result.include("clientes", clientes);
    }

    @Post("/cliente")
    public void salvar(Cliente cliente) {
        if (cliente != null) {
            if (cliente.getId() == null) {
                dao.insert(cliente);
            } else {
                dao.update(cliente);
            }
        }
        listar();
        result.redirectTo(this.getClass()).listar();
    }

    @Path("/cliente/editar/{cliente.id}")
    public void editar(Cliente cliente) {
            cliente = (Cliente) dao.selectById(cliente);
            if (cliente != null) {
                result.include("cliente", cliente);
            }
            result.redirectTo(this.getClass()).novo();
    }

    @Path("/cliente/novo")
    public void novo() {
    }

    @Path("/cliente/excluir/")
    public void excluir(Cliente cliente) {
        if (cliente != null && cliente.getId() != null) {
            dao.remove(cliente);
        }
        listar();
        result.redirectTo(this.getClass()).listar();
    }
}

/cliente/listar

<div style="height: 10px">&nbsp;</div>
		<center>
			<a href="<c:url value="/cliente/novo"/>">Novo</a>
			<table width="500" border="1">
				<thead>
					<tr>
						<td width="50">Documento</td>
						<td width="300">Nome</td>
						<td width="75">Email</td>
						<td width="75">Telefone</td>
                                                <td width="75">Ações</td>
                                                <td width="75">Ações</td>
					</tr>
				</thead>
				<tbody>
					<c:forEach items="${clientes}" var="cliente">
						<tr>
							<td>${cliente.id}</td>
							<td>${cliente.nome}</td>
							<td>${cliente.email}</td>
							<td>${cliente.fone}</td>
							<td>
                                                            <a href="<c:url value="/cliente/editar/${cliente.id}"/>">Editar</a>
                                                        </td>
                                                        <td>
                                                            <a href="<c:url value="/cliente/excluir/${cliente.id}"/>">Excluir</a>
                                                        </td>
						</tr>
					</c:forEach>
				</tbody>
			</table>
		</center>

Eis que surge o meu problema, ao clicar no link para Editar um determinado registro, econtro o seguinte erro:

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

br.com.caelum.vraptor.InterceptionException: exception raised, check root cause for details: java.lang.IllegalArgumentException: id to load is required for loading
	br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:96)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.ParametersInstantiatorInterceptor.intercept(ParametersInstantiatorInterceptor.java:87)
	br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:59)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:51)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:83)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.InstantiateInterceptor.intercept(InstantiateInterceptor.java:48)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:71)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:69)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.EnhancedRequestExecution.execute(EnhancedRequestExecution.java:44)
	br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:58)
	br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
root cause

java.lang.IllegalArgumentException: id to load is required for loading
	org.hibernate.event.LoadEvent.<init>(LoadEvent.java:74)
	org.hibernate.event.LoadEvent.<init>(LoadEvent.java:56)
	org.hibernate.impl.SessionImpl.get(SessionImpl.java:840)
	org.hibernate.impl.SessionImpl.get(SessionImpl.java:836)
	org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:182)
	br.com.tecnihouse.Dao.GenericDAO.selectById(GenericDAO.java:40)
	br.com.tecnihouse.controller.ClienteController.editar(ClienteController.java:49)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:601)
	br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:61)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.ParametersInstantiatorInterceptor.intercept(ParametersInstantiatorInterceptor.java:87)
	br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:59)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:51)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:83)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.InstantiateInterceptor.intercept(InstantiateInterceptor.java:48)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:71)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:69)
	br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	br.com.caelum.vraptor.core.EnhancedRequestExecution.execute(EnhancedRequestExecution.java:44)
	br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:58)
	br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.27 logs.

Não to conseguindo entender o que estou a fazer de errado.

Aceito quais quer sugestão de melhoria.

1 Resposta

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