Javax.el.PropertyNotFoundException: /pages/addSell.xhtml @11,67 value="#{sellFaces.sellInAction.id}

10 de setembro de 2009 2 respostas

EuclidesFilizola 10 de setembro de 2009

Bom dia caros amigos do forum, estou com um probleminha que não consigo resolver. Permitam-me explicar.

Eu possuo a entidade abaixo sell

package br.com.loja.entity;

import java.io.Serializable;


import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Version;




@Entity(name="sell")
public class Sell implements Serializable {
	
	private static final long serialVersionUID = 1L;

	@Id
	@Column(name = "id")
	private Integer id;
	@JoinColumn(name="id_product",referencedColumnName="id")
	@ManyToOne(fetch=FetchType.LAZY,optional=false)
	private Product product;
	@JoinColumn(name="id_vendor",referencedColumnName="id")
	@ManyToOne(fetch=FetchType.LAZY,optional=false)
	private User vendor;
	@Column(name="number_of_itens")
	private int numberOfItens;
	@Version
	private int version;

	public Sell() {

	}
	
	

	public Sell(Integer id, Product product, User vendor, int numberOfItens,
			int version) {
		super();
		this.id = id;
		this.product = product;
		this.vendor = vendor;
		this.numberOfItens = numberOfItens;
		this.version = version;
	}


	
	
	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public Product getProduct() {
		return product;
	}

	public void setProduct(Product product) {
		this.product = product;
	}

	public User getVendor() {
		return vendor;
	}

	public void setVendor(User vendor) {
		this.vendor = vendor;
	}

	public int getNumberOfItens() {
		return numberOfItens;
	}

	public void setNumberOfItens(int numberOfItens) {
		this.numberOfItens = numberOfItens;
	}

	public int getVersion() {
		return version;
	}

	public void setVersion(int version) {
		this.version = version;
	}



	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}



	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Sell other = (Sell) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}

	
	
}

tenho aqui meu faces

package br.com.loja.ManagedBean;

import java.util.List;

import javax.faces.model.SelectItem;

import br.com.loja.dao.ProductDAO;
import br.com.loja.dao.SellDAO;
import br.com.loja.dao.UserDAO;
import br.com.loja.entity.Product;
import br.com.loja.entity.Sell;
import br.com.loja.entity.User;

public class SellFaces {

	private final SellDAO dao = new SellDAO();
	private final UserDAO daoUser = new UserDAO();
	private final ProductDAO daoProduct = new ProductDAO();
	private List<Sell> sells;
	private Sell sellInAction;
	
	public SellFaces() {
		
	}
	
	public String doStartSell(){
		
		sellInAction = new Sell();
		return "gotoAddSell";
	}
	
	public String finishStartSell(){
		
		dao.addSell(sellInAction);
		sells = null;
		return "gotoListSell";
	}
	
	public SelectItem[] getVendors(){
		List<User> users = daoUser.getAllUsers();
		SelectItem[] retorno = new SelectItem[users.size()];
		for (int i = 0; i < retorno.length; i++) {
			retorno[i] = new SelectItem(users.get(i).getId(),users.get(i).getName());
		}
		
		return retorno;
			
	}
	
	public SelectItem[] getProducts(){
		List<Product> products = daoProduct.getAllProducts();
		SelectItem[] retorno = new SelectItem[products.size()];
		for (int i = 0; i < retorno.length; i++) {
			retorno[i] = new SelectItem(products.get(i).getId(),products.get(i).getName());
		}
		
		return retorno;
			
	}

	public void setSell(List<Sell> sell) {
		this.sells = sell;
	}

	public List<Sell> getSell() {
		if (sells == null){
			sells = dao.getAllSells();
		}
		return sells;
	}

	public void setSellInAction(Sell sellInAction) {
		this.sellInAction = sellInAction;
	}

	public Sell getSellInAction() {
		return sellInAction;
	}

	
	
}

aqui meu dao

package br.com.loja.dao;

import java.util.List;

import javax.persistence.EntityManager;


import br.com.loja.entity.Sell;
import br.com.loja.util.JPAUtil;

public class SellDAO {

	public SellDAO() {

	}

	public int addSell(Sell sell) {
		EntityManager em = JPAUtil.getInstance().getEntityManager();
		em.persist(sell);
		em.getTransaction().commit();
		em.close();

		return sell.getId();
	}

	public Sell getSell(int idSell) {

		return JPAUtil.getInstance().getEntity(Sell.class, idSell);
	}

	public void removeSell(Sell sell) {
		EntityManager em = JPAUtil.getInstance().getEntityManager();
		sell = em.getReference(Sell.class, sell.getId());
		em.remove(sell);
		em.getTransaction().commit();
		em.close();
	}

	public void updateSell(Sell sell) {
		EntityManager em = JPAUtil.getInstance().getEntityManager();
		em.merge(sell);
		em.getTransaction().commit();
		em.close();

	}

	public List<Sell> getAllSells() {

		return JPAUtil.getInstance().getList(Sell.class,
				"select sl from sell sl");
	}
}

aqui esta minha pagina para adicionar

<!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:f="http://java.sun.com/jsf/core"
	xmlns:ui="http://java.sun.com/jsf/facelets">
<head></head>
<body>
<h1>Add new Sale</h1>
<h:form>
	<h:messages />
			Id:<h:inputText id="id" value="#{sellFaces.sellInAction.id}" />
	<br />
		Product:<h:selectOneMenu id="product" value="#{sellFaces.sellInAction.product}">
		<f:selectItems value="#{sellFaces.products}" />
		<f:converter converterId="ProductConverter"/>
	</h:selectOneMenu>
	<br />
		Vendor:<h:selectOneMenu id="vendor"	value="#{sellFaces.sellInAction.vendor}">
		<f:selectItems value="#{sellFaces.vendors}" />
	</h:selectOneMenu>
	<br />
Number of Itens:<h:inputText id="noi" value="#{sellFaces.sellInAction.numberOfItens}" />
	<br />
	<h:commandButton value="Inserir Venda" action="#{sellFaces.doStartSellfinishStartSell}" />
</h:form>
</body>
</html>

e quando tento adicionar os valores, isso aparece:

0/09/2009 10:21:13 com.sun.faces.lifecycle.ProcessValidationsPhase execute
WARNING: /pages/addSell.xhtml @11,67 value="#{sellFaces.sellInAction.id}": Target Unreachable, 'sellInAction' returned null
javax.el.PropertyNotFoundException: /pages/addSell.xhtml @11,67 value="#{sellFaces.sellInAction.id}": Target Unreachable, 'sellInAction' returned null
	at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62)
	at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:92)
	at javax.faces.component.UIInput.getConvertedValue(UIInput.java:942)
	at javax.faces.component.UIInput.validate(UIInput.java:868)
	at javax.faces.component.UIInput.executeValidate(UIInput.java:1072)
	at javax.faces.component.UIInput.processValidators(UIInput.java:672)
	at javax.faces.component.UIForm.processValidators(UIForm.java:234)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1058)
	at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:700)
	at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:574)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1527)
	at java.lang.Thread.run(Unknown Source)
10/09/2009 10:21:13 com.sun.faces.lifecycle.Phase doPhase
SEVERE: JSF1054: (Phase ID: PROCESS_VALIDATIONS 3, View ID: /pages/addSell.xhtml) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@169d75d]
10/09/2009 10:21:13 org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet Faces Servlet threw exception
javax.el.PropertyNotFoundException: /pages/addSell.xhtml @11,67 value="#{sellFaces.sellInAction.id}": Target Unreachable, 'sellInAction' returned null
	at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62)
	at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:92)
	at javax.faces.component.UIInput.getConvertedValue(UIInput.java:942)
	at javax.faces.component.UIInput.validate(UIInput.java:868)
	at javax.faces.component.UIInput.executeValidate(UIInput.java:1072)
	at javax.faces.component.UIInput.processValidators(UIInput.java:672)
	at javax.faces.component.UIForm.processValidators(UIForm.java:234)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1058)
	at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:700)
	at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:574)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1527)
	at java.lang.Thread.run(Unknown Source)

Alguém teria ideia do que seja o problema ?

2 Respostas

Chronos 20 de set. de 2010

EuclidesFilizola:

Bom dia caros amigos do forum, estou com um probleminha que não consigo resolver. Permitam-me explicar.

Eu possuo a entidade abaixo sell

package br.com.loja.entity;

import java.io.Serializable;


import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Version;




@Entity(name="sell")
public class Sell implements Serializable {
	
	private static final long serialVersionUID = 1L;

	@Id
	@Column(name = "id")
	private Integer id;
	@JoinColumn(name="id_product",referencedColumnName="id")
	@ManyToOne(fetch=FetchType.LAZY,optional=false)
	private Product product;
	@JoinColumn(name="id_vendor",referencedColumnName="id")
	@ManyToOne(fetch=FetchType.LAZY,optional=false)
	private User vendor;
	@Column(name="number_of_itens")
	private int numberOfItens;
	@Version
	private int version;

	public Sell() {

	}
	
	

	public Sell(Integer id, Product product, User vendor, int numberOfItens,
			int version) {
		super();
		this.id = id;
		this.product = product;
		this.vendor = vendor;
		this.numberOfItens = numberOfItens;
		this.version = version;
	}


	
	
	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public Product getProduct() {
		return product;
	}

	public void setProduct(Product product) {
		this.product = product;
	}

	public User getVendor() {
		return vendor;
	}

	public void setVendor(User vendor) {
		this.vendor = vendor;
	}

	public int getNumberOfItens() {
		return numberOfItens;
	}

	public void setNumberOfItens(int numberOfItens) {
		this.numberOfItens = numberOfItens;
	}

	public int getVersion() {
		return version;
	}

	public void setVersion(int version) {
		this.version = version;
	}



	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}



	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Sell other = (Sell) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}

	
	
}

tenho aqui meu faces

package br.com.loja.ManagedBean;

import java.util.List;

import javax.faces.model.SelectItem;

import br.com.loja.dao.ProductDAO;
import br.com.loja.dao.SellDAO;
import br.com.loja.dao.UserDAO;
import br.com.loja.entity.Product;
import br.com.loja.entity.Sell;
import br.com.loja.entity.User;

public class SellFaces {

	private final SellDAO dao = new SellDAO();
	private final UserDAO daoUser = new UserDAO();
	private final ProductDAO daoProduct = new ProductDAO();
	private List<Sell> sells;
	private Sell sellInAction;
	
	public SellFaces() {
		
	}
	
	public String doStartSell(){
		
		sellInAction = new Sell();
		return "gotoAddSell";
	}
	
	public String finishStartSell(){
		
		dao.addSell(sellInAction);
		sells = null;
		return "gotoListSell";
	}
	
	public SelectItem[] getVendors(){
		List<User> users = daoUser.getAllUsers();
		SelectItem[] retorno = new SelectItem[users.size()];
		for (int i = 0; i < retorno.length; i++) {
			retorno[i] = new SelectItem(users.get(i).getId(),users.get(i).getName());
		}
		
		return retorno;
			
	}
	
	public SelectItem[] getProducts(){
		List<Product> products = daoProduct.getAllProducts();
		SelectItem[] retorno = new SelectItem[products.size()];
		for (int i = 0; i < retorno.length; i++) {
			retorno[i] = new SelectItem(products.get(i).getId(),products.get(i).getName());
		}
		
		return retorno;
			
	}

	public void setSell(List<Sell> sell) {
		this.sells = sell;
	}

	public List<Sell> getSell() {
		if (sells == null){
			sells = dao.getAllSells();
		}
		return sells;
	}

	public void setSellInAction(Sell sellInAction) {
		this.sellInAction = sellInAction;
	}

	public Sell getSellInAction() {
		return sellInAction;
	}

	
	
}

aqui meu dao

package br.com.loja.dao;

import java.util.List;

import javax.persistence.EntityManager;


import br.com.loja.entity.Sell;
import br.com.loja.util.JPAUtil;

public class SellDAO {

	public SellDAO() {

	}

	public int addSell(Sell sell) {
		EntityManager em = JPAUtil.getInstance().getEntityManager();
		em.persist(sell);
		em.getTransaction().commit();
		em.close();

		return sell.getId();
	}

	public Sell getSell(int idSell) {

		return JPAUtil.getInstance().getEntity(Sell.class, idSell);
	}

	public void removeSell(Sell sell) {
		EntityManager em = JPAUtil.getInstance().getEntityManager();
		sell = em.getReference(Sell.class, sell.getId());
		em.remove(sell);
		em.getTransaction().commit();
		em.close();
	}

	public void updateSell(Sell sell) {
		EntityManager em = JPAUtil.getInstance().getEntityManager();
		em.merge(sell);
		em.getTransaction().commit();
		em.close();

	}

	public List<Sell> getAllSells() {

		return JPAUtil.getInstance().getList(Sell.class,
				"select sl from sell sl");
	}
}

aqui esta minha pagina para adicionar

<!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:f="http://java.sun.com/jsf/core"
	xmlns:ui="http://java.sun.com/jsf/facelets">
<head></head>
<body>
<h1>Add new Sale</h1>
<h:form>
	<h:messages />
			Id:<h:inputText id="id" value="#{sellFaces.sellInAction.id}" />
	<br />
		Product:<h:selectOneMenu id="product" value="#{sellFaces.sellInAction.product}">
		<f:selectItems value="#{sellFaces.products}" />
		<f:converter converterId="ProductConverter"/>
	</h:selectOneMenu>
	<br />
		Vendor:<h:selectOneMenu id="vendor"	value="#{sellFaces.sellInAction.vendor}">
		<f:selectItems value="#{sellFaces.vendors}" />
	</h:selectOneMenu>
	<br />
Number of Itens:<h:inputText id="noi" value="#{sellFaces.sellInAction.numberOfItens}" />
	<br />
	<h:commandButton value="Inserir Venda" action="#{sellFaces.doStartSellfinishStartSell}" />
</h:form>
</body>
</html>

e quando tento adicionar os valores, isso aparece:

0/09/2009 10:21:13 com.sun.faces.lifecycle.ProcessValidationsPhase execute
WARNING: /pages/addSell.xhtml @11,67 value="#{sellFaces.sellInAction.id}": Target Unreachable, 'sellInAction' returned null
javax.el.PropertyNotFoundException: /pages/addSell.xhtml @11,67 value="#{sellFaces.sellInAction.id}": Target Unreachable, 'sellInAction' returned null
	at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62)
	at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:92)
	at javax.faces.component.UIInput.getConvertedValue(UIInput.java:942)
	at javax.faces.component.UIInput.validate(UIInput.java:868)
	at javax.faces.component.UIInput.executeValidate(UIInput.java:1072)
	at javax.faces.component.UIInput.processValidators(UIInput.java:672)
	at javax.faces.component.UIForm.processValidators(UIForm.java:234)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1058)
	at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:700)
	at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:574)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1527)
	at java.lang.Thread.run(Unknown Source)
10/09/2009 10:21:13 com.sun.faces.lifecycle.Phase doPhase
SEVERE: JSF1054: (Phase ID: PROCESS_VALIDATIONS 3, View ID: /pages/addSell.xhtml) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@169d75d]
10/09/2009 10:21:13 org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet Faces Servlet threw exception
javax.el.PropertyNotFoundException: /pages/addSell.xhtml @11,67 value="#{sellFaces.sellInAction.id}": Target Unreachable, 'sellInAction' returned null
	at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62)
	at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:92)
	at javax.faces.component.UIInput.getConvertedValue(UIInput.java:942)
	at javax.faces.component.UIInput.validate(UIInput.java:868)
	at javax.faces.component.UIInput.executeValidate(UIInput.java:1072)
	at javax.faces.component.UIInput.processValidators(UIInput.java:672)
	at javax.faces.component.UIForm.processValidators(UIForm.java:234)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1058)
	at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:700)
	at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:574)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1527)
	at java.lang.Thread.run(Unknown Source)

Alguém teria ideia do que seja o problema ?

Olá EuclidesFilizola.

Tive esse problema e mudei meu atributo que estava como Integer para int e funcionou perfeitamente.
Não sei se essa é a melhor forma, mas funciona.

Valeu

Ygor 21 de set. de 2010

Na verdade eu acho que o problema seja um pouco acima do que o Chronos falou, veja que na primeira visualização vc tenta acessar o atributo sellInAction e ele ainda não foi instanciado.
Portanto esta como nulo, tu pode fazer esta instância diretamente no construtor ou criar um método com a anotação PostConstruct.
Creio que isso sera suficiente, qualquer coisa poste aí

Criado 10 de setembro de 2009

Ultima resposta 21 de set. de 2010

Respostas 2

Participantes 3

2 Respostas

Topicos relacionados