NullPointerException trong Netbeans Hibernate Mapping Files và POJOs wizard từ cơ sở dữ liệu Firebird

Question

Tôi đang phát triển một ứng dụng máy tính để bàn bằng cách sử dụng netbeans, hibernate và firebird.

Trình hướng dẫn không cho tôi gặp rắc rối tạo file hibernate.cfg.xml, hoặc HibernateUtil.java

Nhưng bằng cách cố gắng: New -> Khác -> Hibernate -> Hibernate Mapping Files và POJO từ cơ sở dữ liệu, sử dụng hibernate.cfg.xml và hibernate.reveng.xml trình hướng dẫn của tôi ném ngoại lệ:

Hibernate cấu hình không thành công với thông điệp: java.lang.NullPointerException message.log thấy ngoại lệ để biết chi tiết.

Tôi đang sử dụng

Product Version: NetBeans IDE 7.2.1 (Build 201.210.100.934)
Java: 1.7.0_11; Máy khách Java HotSpot (TM) VM 23.6-b04
Hệ thống: Windows XP phiên bản 5.1 chạy trên x86; Cp1252; es_ES (nb)
phiên bản Firebird: 2.1.1

hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
<hibernate-configuration> 
    <session-factory> 
    <property name="hibernate.dialect">org.hibernate.dialect.FirebirdDialect</property> 
    <property name="hibernate.connection.driver_class">org.firebirdsql.jdbc.FBDriver</property> 
    <property name="hibernate.connection.url">jdbc:firebirdsql://ip_from_my_server:3050/path_to_my_database.gdb</property> 
    <property name="hibernate.connection.username">sysdba</property> 
    <property name="hibernate.connection.password">masterkey</property> 
    </session-factory> 
</hibernate-configuration> 

HibernateUtil.java

/* 
* To change this template, choose Tools | Templates 
* and open the template in the editor. 
*/ 
package mypackage.util; 

import org.hibernate.cfg.AnnotationConfiguration; 
import org.hibernate.SessionFactory; 

/** 
* Hibernate Utility class with a convenient method to get Session Factory 
* object. 
* 
*/ 
public class HibernateUtil { 

    private static final SessionFactory sessionFactory; 

    static { 
     try { 
      // Create the SessionFactory from standard (hibernate.cfg.xml) 
      // config file. 
      sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory(); 
     } catch (Throwable ex) { 
      // Log the exception. 
      System.err.println("Initial SessionFactory creation failed." + ex); 
      throw new ExceptionInInitializerError(ex); 
     } 
    } 

    public static SessionFactory getSessionFactory() { 
     return sessionFactory; 
    } 
} 

hibernate.reveng.xml

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE hibernate-reverse-engineering PUBLIC "-//Hibernate/Hibernate Reverse Engineering DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-reverse-engineering-3.0.dtd"> 
<hibernate-reverse-engineering> 
    <schema-selection/> 
    <table-filter match-name="atable"/> 
</hibernate-reverse-engineering> 

Đây là quan điểm tập tin, đăng nhập ide

>Log Session: Thursday, January 24, 2013 12:09:08 PM CET 
>System Info: 
    Product Version   = NetBeans IDE 7.2.1 (Build 201210100934) (#a183c5e41a19) 
    Operating System  = Windows XP version 5.1 running on x86 
    Java; VM; Vendor  = 1.7.0_11; Java HotSpot(TM) Client VM 23.6-b04; Oracle Corporation 
    Runtime     = Java(TM) SE Runtime Environment 1.7.0_11-b21 
    Java Home    = C:\Archivos de programa\Java\jdk1.7.0_11\jre 
    System Locale; Encoding = es_ES (nb); Cp1252 
    Home Directory   = C:\Documents and Settings\miusuario 
    Current Directory  = C:\Archivos de programa\NetBeans 7.2.1 
    User Directory   = C:\Documents and Settings\miusuario\Datos de programa\NetBeans\7.2.1 
    Cache Directory   = C:\Documents and Settings\miusuario\Configuraci?n local\Datos de programa\NetBeans\Cache\7.2.1 
    Installation   = C:\Archivos de programa\NetBeans 7.2.1\nb 
          C:\Archivos de programa\NetBeans 7.2.1\ide 
          C:\Archivos de programa\NetBeans 7.2.1\java 
          C:\Archivos de programa\NetBeans 7.2.1\apisupport 
          C:\Archivos de programa\NetBeans 7.2.1\webcommon 
          C:\Archivos de programa\NetBeans 7.2.1\websvccommon 
          C:\Archivos de programa\NetBeans 7.2.1\enterprise 
          C:\Archivos de programa\NetBeans 7.2.1\profiler 
          C:\Archivos de programa\NetBeans 7.2.1\harness 
          C:\Archivos de programa\NetBeans 7.2.1\javafx 
          C:\Archivos de programa\NetBeans 7.2.1\platform 
    Boot & Ext. Classpath = C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\resources.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\rt.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\sunrsasign.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\jsse.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\jce.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\charsets.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\jfr.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\classes;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\access-bridge.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\dnsns.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\jaccess.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\localedata.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\sunec.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\sunjce_provider.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\sunmscapi.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\sunpkcs11.jar;C:\Archivos de programa\Java\jdk1.7.0_11\jre\lib\ext\zipfs.jar 
    Application Classpath = C:\Archivos de programa\NetBeans 7.2.1\platform\lib\boot.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\org-openide-modules.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\org-openide-util-lookup.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\org-openide-util.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\boot_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\boot_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\boot_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\boot_zh_CN.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-modules_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-modules_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-modules_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-modules_zh_CN.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util-lookup_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util-lookup_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util-lookup_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util-lookup_zh_CN.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\lib\locale\org-openide-util_zh_CN.jar;C:\Archivos de programa\Java\jdk1.7.0_11\lib\dt.jar;C:\Archivos de programa\Java\jdk1.7.0_11\lib\tools.jar 
    Startup Classpath  = C:\Archivos de programa\NetBeans 7.2.1\platform\core\core.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\org-openide-filesystems.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\core_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\core_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\core_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\core_zh_CN.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\org-openide-filesystems_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\org-openide-filesystems_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\org-openide-filesystems_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\platform\core\locale\org-openide-filesystems_zh_CN.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\org-netbeans-upgrader.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\core_nb.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\core_nb_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\core_nb_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\core_nb_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\core_nb_zh_CN.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\org-netbeans-upgrader_ja.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\org-netbeans-upgrader_pt_BR.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\org-netbeans-upgrader_ru.jar;C:\Archivos de programa\NetBeans 7.2.1\nb\core\locale\org-netbeans-upgrader_zh_CN.jar 
------------------------------------------------------------------------------- 
INFO [org.netbeans.modules.hibernate.util.CustomClassLoader]: file:/C:/proyectos/NetBeans.7.1.2/HibernateFirebird/build/classes/ 
INFO [org.hibernate.cfg.Configuration]: configuring from file: hibernate.cfg.xml 
INFO [org.hibernate.cfg.Configuration]: Configured SessionFactory: null 
INFO [org.hibernate.cfg.reveng.OverrideRepository]: Override file: C:\proyectos\NetBeans.7.1.2\HibernateFirebird\src\hibernate.reveng.xml 
INFO [org.netbeans.modules.hibernate.util.HibernateUtil]: Found pre-existing database connection. 
INFO [org.netbeans.modules.hibernate.util.HibernateUtil]: Database Connection is pre-established. Returning the conneciton. 
INFO [org.hibernate.connection.ConnectionProviderFactory]: Initializing connection provider: org.netbeans.modules.hibernate.util.CustomJDBCConnectionProvider 
INFO [org.netbeans.modules.hibernate.util.CustomJDBCConnectionProvider]: Loaded JDBC driver 
INFO [org.netbeans.modules.hibernate.util.CustomJDBCConnectionProvider]: Got connection.. returning 
INFO [org.netbeans.modules.hibernate.wizards.HibernateCodeGenWizardDescriptor]: access to hibernate fails. 
java.lang.NullPointerException 
    at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:86) 
    at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2005) 
    at org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:40) 
    at org.netbeans.modules.hibernate.wizards.HibernateCodeGenWizardDescriptor.checkConfig(HibernateCodeGenWizardDescriptor.java:282) 
[catch] at org.netbeans.modules.hibernate.wizards.HibernateCodeGenWizardDescriptor.isValid(HibernateCodeGenWizardDescriptor.java:177) 
    at org.openide.WizardDescriptor.updateStateOpen(WizardDescriptor.java:900) 
    at org.openide.WizardDescriptor.updateState(WizardDescriptor.java:844) 
    at org.openide.loaders.TemplateWizard.updateState(TemplateWizard.java:732) 
    at org.netbeans.modules.project.ui.NewFileWizard.updateState(NewFileWizard.java:122) 
    at org.openide.WizardDescriptor$Listener.stateChanged(WizardDescriptor.java:2094) 
    at org.openide.util.WeakListenerImpl$Change.stateChanged(WeakListenerImpl.java:329) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119) 
    at org.netbeans.modules.project.ui.TemplateChooserPanel.stateChanged(TemplateChooserPanel.java:182) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119) 
    at org.netbeans.modules.project.ui.TemplateChooserPanelGUI.fireChange(TemplateChooserPanelGUI.java:164) 
    at org.netbeans.modules.project.ui.TemplateChooserPanelGUI.access$500(TemplateChooserPanelGUI.java:78) 
    at org.netbeans.modules.project.ui.TemplateChooserPanelGUI$FileChooserBuilder.fireChange(TemplateChooserPanelGUI.java:380) 
    at org.netbeans.modules.project.ui.TemplatesPanelGUI.propertyChange(TemplatesPanelGUI.java:329) 
    at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335) 
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327) 
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263) 
    at java.awt.Component.firePropertyChange(Component.java:8382) 
    at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel.access$900(TemplatesPanelGUI.java:460) 
    at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel$2.run(TemplatesPanelGUI.java:542) 
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) 
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721) 
    at java.awt.EventQueue.access$200(EventQueue.java:103) 
    at java.awt.EventQueue$3.run(EventQueue.java:682) 
    at java.awt.EventQueue$3.run(EventQueue.java:680) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:691) 
    at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:154) 
    at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182) 
    at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219) 
    at java.awt.Dialog.show(Dialog.java:1077) 
    at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1074) 
    at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1109) 
    at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1096) 
    at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:126) 
    at org.openide.util.Mutex.doEventAccess(Mutex.java:1363) 
    at org.openide.util.Mutex.readAccess(Mutex.java:273) 
    at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1081) 
    at java.awt.Component.show(Component.java:1651) 
    at java.awt.Component.setVisible(Component.java:1603) 
    at java.awt.Window.setVisible(Window.java:1014) 
    at java.awt.Dialog.setVisible(Dialog.java:1003) 
    at org.netbeans.core.windows.services.DialogDisplayerImpl$1AWTQuery.showDialog(DialogDisplayerImpl.java:260) 
    at org.netbeans.core.windows.services.DialogDisplayerImpl$1AWTQuery.run(DialogDisplayerImpl.java:186) 
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) 
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721) 
    at java.awt.EventQueue.access$200(EventQueue.java:103) 
    at java.awt.EventQueue$3.run(EventQueue.java:682) 
    at java.awt.EventQueue$3.run(EventQueue.java:680) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:691) 
    at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) 
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:91) 
INFO [org.netbeans.modules.hibernate.util.CustomClassLoader]: Initializing Custom Classloader with classpath : 
INFO [org.netbeans.modules.hibernate.util.CustomClassLoader]: jar:file:/C:/componentes/Jaybird-2.2.1JDK_1.7/jaybird-2.2.1.jar!/ 
INFO [org.netbeans.modules.hibernate.util.CustomClassLoader]: jar:file:/C:/componentes/Jaybird-2.2.1JDK_1.7/jaybird-2.2.1-javadoc.jar!/ 
INFO [org.netbeans.modules.hibernate.util.CustomClassLoader]: jar:file:/C:/componentes/Jaybird-2.2.1JDK_1.7/jaybird-2.2.1-sources.jar!/ 
INFO [org.netbeans.modules.hibernate.util.CustomClassLoader]: jar:file:/C:/componentes/Jaybird-2.2.1JDK_1.7/jaybird-full-2.2.1.jar!/ 
INFO [org.netbeans.modules.hibernate.util.CustomClassLoader]: file:/C:/proyectos/NetBeans.7.1.2/HibernateFirebird/build/classes/ 
INFO [org.hibernate.cfg.Configuration]: configuring from file: hibernate.cfg.xml 
INFO [org.hibernate.cfg.Configuration]: Configured SessionFactory: null 
INFO [org.hibernate.cfg.reveng.OverrideRepository]: Override file: C:\proyectos\NetBeans.7.1.2\HibernateFirebird\src\hibernate.reveng.xml 
INFO [org.netbeans.modules.hibernate.util.HibernateUtil]: Found pre-existing database connection. 
INFO [org.netbeans.modules.hibernate.util.HibernateUtil]: Database Connection is pre-established. Returning the conneciton. 
INFO [org.hibernate.connection.ConnectionProviderFactory]: Initializing connection provider: org.netbeans.modules.hibernate.util.CustomJDBCConnectionProvider 
INFO [org.netbeans.modules.hibernate.util.CustomJDBCConnectionProvider]: Loaded JDBC driver 
INFO [org.netbeans.modules.hibernate.util.CustomJDBCConnectionProvider]: Got connection.. returning 
INFO [org.netbeans.modules.hibernate.wizards.HibernateCodeGenWizardDescriptor]: access to hibernate fails. 
java.lang.NullPointerException 
    at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:86) 
    at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2005) 
    at org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:40) 
    at org.netbeans.modules.hibernate.wizards.HibernateCodeGenWizardDescriptor.checkConfig(HibernateCodeGenWizardDescriptor.java:282) 
[catch] at org.netbeans.modules.hibernate.wizards.HibernateCodeGenWizardDescriptor.isValid(HibernateCodeGenWizardDescriptor.java:177) 
    at org.openide.WizardDescriptor.updateStateOpen(WizardDescriptor.java:900) 
    at org.openide.WizardDescriptor.updateState(WizardDescriptor.java:844) 
    at org.openide.loaders.TemplateWizard.updateState(TemplateWizard.java:732) 
    at org.netbeans.modules.project.ui.NewFileWizard.updateState(NewFileWizard.java:122) 
    at org.openide.WizardDescriptor$Listener.stateChanged(WizardDescriptor.java:2094) 
    at org.openide.util.WeakListenerImpl$Change.stateChanged(WeakListenerImpl.java:329) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119) 
    at org.netbeans.modules.project.ui.TemplateChooserPanel.stateChanged(TemplateChooserPanel.java:182) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133) 
    at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119) 
    at org.netbeans.modules.project.ui.TemplateChooserPanelGUI.fireChange(TemplateChooserPanelGUI.java:164) 
    at org.netbeans.modules.project.ui.TemplateChooserPanelGUI.access$500(TemplateChooserPanelGUI.java:78) 
    at org.netbeans.modules.project.ui.TemplateChooserPanelGUI$FileChooserBuilder.fireChange(TemplateChooserPanelGUI.java:380) 
    at org.netbeans.modules.project.ui.TemplatesPanelGUI.propertyChange(TemplatesPanelGUI.java:329) 
    at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335) 
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327) 
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263) 
    at java.awt.Component.firePropertyChange(Component.java:8382) 
    at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel.access$900(TemplatesPanelGUI.java:460) 
    at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel$2.run(TemplatesPanelGUI.java:542) 
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) 
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721) 
    at java.awt.EventQueue.access$200(EventQueue.java:103) 
    at java.awt.EventQueue$3.run(EventQueue.java:682) 
    at java.awt.EventQueue$3.run(EventQueue.java:680) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:691) 
    at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:154) 
    at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182) 
    at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219) 
    at java.awt.Dialog.show(Dialog.java:1077) 
    at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1074) 
    at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1109) 
    at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1096) 
    at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:126) 
    at org.openide.util.Mutex.doEventAccess(Mutex.java:1363) 
    at org.openide.util.Mutex.readAccess(Mutex.java:273) 
    at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1081) 
    at java.awt.Component.show(Component.java:1651) 
    at java.awt.Component.setVisible(Component.java:1603) 
    at java.awt.Window.setVisible(Window.java:1014) 
    at java.awt.Dialog.setVisible(Dialog.java:1003) 
    at org.netbeans.core.windows.services.DialogDisplayerImpl$1AWTQuery.showDialog(DialogDisplayerImpl.java:260) 
    at org.netbeans.core.windows.services.DialogDisplayerImpl$1AWTQuery.run(DialogDisplayerImpl.java:186) 
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) 
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721) 
    at java.awt.EventQueue.access$200(EventQueue.java:103) 
    at java.awt.EventQueue$3.run(EventQueue.java:682) 
    at java.awt.EventQueue$3.run(EventQueue.java:680) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:691) 
    at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) 
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:91) 

Answer 1

Một câu hỏi mới về điều này đã kích hoạt tôi điều tra lại, vấn đề là sự kết hợp giữa cách Jaybird tự tải và trình nạp lớp tùy chỉnh trong Netbeans. Xem https://stackoverflow.com/a/18920383/466862

Answer 2

xóa hibernate.cfg.xml và hibernate.reveng.xml; Và tạo lại chúng bằng Netbeans. Sau đó, hãy thử tạo các lớp thực thể. Tôi đã phải đối mặt với vấn đề này và làm việc này cho tôi