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  1. javax.faces.el.EvaluationException: java.lang.NullPointerException
  2. at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
  3. at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
  4. at javax.faces.component.UICommand.broadcast(UICommand.java:315)
  5. at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
  6. at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
  7. at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
  8. at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
  9. at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
  10. at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
  11. at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
  12. at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
  13. at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
  14. at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
  15. at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
  16. at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
  17. at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
  18. at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
  19. at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
  20. at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
  21. at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
  22. at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
  23. at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
  24. at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
  25. at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
  26. at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
  27. at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
  28. at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
  29. at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
  30. at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
  31. at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
  32. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
  33. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
  34. at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
  35. at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
  36. at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
  37. at java.lang.Thread.run(Thread.java:748)
  38. Caused by: java.lang.NullPointerException
  39. at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.getStatus(JtaStatusHelper.java:76)
  40. at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.isActive(JtaStatusHelper.java:118)
  41. at org.hibernate.engine.transaction.internal.jta.CMTTransaction.join(CMTTransaction.java:149)
  42. at org.hibernate.jpa.spi.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:1602)
  43. at org.hibernate.jpa.spi.AbstractEntityManagerImpl.postInit(AbstractEntityManagerImpl.java:210)
  44. at org.hibernate.jpa.internal.EntityManagerImpl.<init>(EntityManagerImpl.java:91)
  45. at org.hibernate.jpa.internal.EntityManagerFactoryImpl.internalCreateEntityManager(EntityManagerFactoryImpl.java:345)
  46. at org.hibernate.jpa.internal.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:313)
  47. at bean.JPAUtil.getEntityManager(JPAUtil.java:22)
  48. at bean.ClienteBean.salva(ClienteBean.java:56)
  49. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  50. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  51. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  52. at java.lang.reflect.Method.invoke(Method.java:498)
  53. at com.sun.el.parser.AstValue.invoke(AstValue.java:275)
  54. at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
  55. at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
  56. at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
  57. at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
  58. at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
  59.  
  60. package bean;
  61.  
  62. import java.util.List;
  63. import javax.faces.bean.ManagedBean;
  64. import javax.faces.bean.SessionScoped;
  65. import javax.persistence.EntityManager;
  66. import javax.persistence.Query;
  67. import model.Cliente;
  68.  
  69. @ManagedBean
  70. @SessionScoped
  71. public class ClienteBean {
  72.  
  73. private Cliente cliente;
  74. private List<Cliente> clientes;
  75.  
  76. public ClienteBean() {
  77. cliente = new Cliente();
  78. }
  79.  
  80. public Cliente getCliente() {
  81. return cliente;
  82. }
  83.  
  84. public void setCliente(Cliente cliente) {
  85. this.cliente = cliente;
  86. }
  87.  
  88. public List<Cliente> getClientes() {
  89. if (this.clientes == null) {
  90. EntityManager em = JPAUtil.getEntityManager();
  91. Query a = em.createQuery("select a from Cliente a",
  92. Cliente.class);
  93. this.clientes = a.getResultList();
  94. em.close();
  95. }
  96.  
  97. return clientes;
  98. }
  99.  
  100. /**
  101. *
  102. * @return
  103. */
  104. public String salva() {
  105.  
  106. EntityManager em = JPAUtil.getEntityManager();
  107. try {
  108. em.getTransaction().begin();
  109. // Verifica se o cliente ainda não está salva no banco de dados.
  110. if (cliente.getId() == null) {
  111. //Salva os dados do cliente.
  112. em.persist(cliente);
  113. } else {
  114. //Atualiza os dados da pessoa.
  115. cliente = em.merge(cliente);
  116. }
  117. // Finaliza a transação.
  118. em.getTransaction().commit();
  119.  
  120. } finally {
  121. em.close();
  122. }
  123.  
  124. this.clientes = null;
  125. return "index";
  126. }
  127.  
  128. public void excluir(Cliente cliente) {
  129.  
  130. EntityManager em = JPAUtil.getEntityManager();
  131. em.getTransaction().begin();
  132. cliente = em.merge(cliente);
  133. em.remove(cliente);
  134. em.getTransaction().commit();
  135. em.close();
  136.  
  137. this.clientes = null;
  138.  
  139. }
  140.  
  141. public String alterar(Cliente a) {
  142. this.cliente = a;
  143. return "cadastro";
  144. }
  145.  
  146. public String cadastrarNovo() {
  147. cliente = new Cliente();
  148. return "cadastro";
  149. }
  150. }
  151.  
  152. package bean;
  153.  
  154. import javax.persistence.EntityManager;
  155. import javax.persistence.EntityManagerFactory;
  156. import javax.persistence.Persistence;
  157.  
  158.  
  159. public class JPAUtil {
  160.  
  161. private static final EntityManagerFactory
  162. emf = Persistence.createEntityManagerFactory("EcommercePulsePU");
  163.  
  164. public static EntityManager getEntityManager() {
  165. return emf.createEntityManager();
  166. }
  167.  
  168. public static void fechaEntityManager() {
  169. emf.close();
  170. }
  171. }
  172.  
  173. <?xml version="1.0" encoding="UTF-8"?>
  174. <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
  175. <persistence-unit name="EcommercePulsePU" transaction-type="JTA">
  176. <provider>org.hibernate.ejb.HibernatePersistence</provider>
  177. <jta-data-source>jdbc/ecommercePG</jta-data-source>
  178. <properties>
  179. <property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/postgres"/>
  180. <property name="javax.persistence.jdbc.user" value="postgres"/>
  181. <property name="javax.persistence.jdbc.password" value="1234"/>
  182. <property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver"/>
  183. <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
  184. <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
  185. <property name="hibernate.show_sql" value="true"/>
  186. <property name="hibernate.format_sql" value="true"/>
  187. </properties>
  188. </persistence-unit>
  189. </persistence>
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