15:03:27,805  INFO Version:15 - Hibernate Annotations 3.3.1.GA
15:03:27,835  INFO Environment:514 - Hibernate 3.2.6
15:03:27,845  INFO Environment:532 - loaded properties from resource hibernate.properties: {hibernate.bytecode.use_reflection_optimizer=false}
15:03:27,845  INFO Environment:681 - Bytecode provider name : cglib
15:03:27,875  INFO Environment:598 - using JDK 1.4 java.sql.Timestamp handling
15:03:27,975  INFO Configuration:1432 - configuring from resource: /hibernate.cfg.xml
15:03:27,975  INFO Configuration:1409 - Configuration resource: /hibernate.cfg.xml
15:03:28,325 DEBUG DTDEntityResolver:38 - trying to resolve system-id [http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd]
15:03:28,325 DEBUG DTDEntityResolver:40 - recognized hibernate namespace; attempting to resolve on classpath under org/hibernate/
15:03:28,335 DEBUG DTDEntityResolver:50 - located [http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd] in classpath
15:03:28,395 DEBUG Configuration:1393 - hibernate.connection.driver_class=com.microsoft.jdbc.sqlserver.SQLServerDriver
15:03:28,395 DEBUG Configuration:1393 - hibernate.connection.password=sql
15:03:28,405 DEBUG Configuration:1393 - hibernate.connection.url=jdbc:microsoft:sqlserver://AYA-NOTEBOOK:1433
15:03:28,405 DEBUG Configuration:1393 - hibernate.connection.username=dba
15:03:28,405 DEBUG Configuration:1393 - hibernate.connection.password=sql
15:03:28,405 DEBUG Configuration:1393 - hibernate.connection.poolSize=1
15:03:28,405 DEBUG Configuration:1393 - hibernate.dialect=org.hibernate.dialect.SQLServerDialect
15:03:28,415 DEBUG Configuration:1393 - show_sql=true
15:03:28,415 DEBUG Configuration:1393 - format_sql=true
15:03:28,415 DEBUG Configuration:1393 - current_session_context_class=thread
15:03:28,415 DEBUG Configuration:1393 - cache.provider_class=org.hibernate.cache.NoCacheProvider
15:03:28,415 DEBUG AnnotationConfiguration:632 - null<-org.dom4j.tree.DefaultAttribute@1c695a6 [Attribute: name class value "com.arballon.gwt.core.server.persistent.MenuItem"]
15:03:28,485 DEBUG AnnotationConfiguration:632 - null<-org.dom4j.tree.DefaultAttribute@13bd574 [Attribute: name class value "com.arballon.gwt.core.server.persistent.MenuFolder"]
15:03:28,485  INFO Configuration:1547 - Configured SessionFactory: null
15:03:28,485 DEBUG Configuration:1548 - properties: {hibernate.connection.password=sql, java.runtime.name=Java(TM) 2 Runtime Environment, Standard Edition, hibernate.cache.provider_class=org.hibernate.cache.NoCacheProvider, sun.boot.library.path=C:\jdk1.5.0_04\jre\bin, java.vm.version=1.5.0_04-b05, hibernate.connection.username=dba, java.vm.vendor=Sun Microsystems Inc., java.vendor.url=http://java.sun.com/, path.separator=;, java.vm.name=Java HotSpot(TM) Client VM, file.encoding.pkg=sun.io, user.country=AR, sun.os.patch.level=Service Pack 2, java.vm.specification.name=Java Virtual Machine Specification, user.dir=C:\eclipse\workspace\ArballonGWT, java.runtime.version=1.5.0_04-b05, hibernate.connection.poolSize=1, java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment, hibernate.current_session_context_class=thread, java.endorsed.dirs=C:\jdk1.5.0_04\jre\lib\endorsed, os.arch=x86, java.io.tmpdir=c:\temp\, line.separator=
, java.vm.specification.vendor=Sun Microsystems Inc., cache.provider_class=org.hibernate.cache.NoCacheProvider, user.variant=, os.name=Windows XP, sun.jnu.encoding=Cp1252, java.library.path=C:\jdk1.5.0_04\bin;.;C:\WINDOWS\system32;C:\WINDOWS;c:\ruby\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Archivos de programa\ATI Technologies\ATI Control Panel;C:\Archivos de programa\Archivos comunes\Adaptec Shared\System;C:\Archivos de programa\Microsoft SQL Server\80\Tools\Binn\;c:\arballon\Server;c:\arballon\Server\Scripts;c:\arballon\Server\dlls;c:C:\jdk1.5.0_04\bin;c:\Informix\bin, java.specification.name=Java Platform API Specification, java.class.version=49.0, sun.management.compiler=HotSpot Client Compiler, os.version=5.1, user.home=C:\Documents and Settings\arballon.AYA-NOTEBOOK, user.timezone=America/Buenos_Aires, java.awt.printerjob=sun.awt.windows.WPrinterJob, file.encoding=Cp1252, java.specification.version=1.5, hibernate.format_sql=true, hibernate.connection.driver_class=com.microsoft.jdbc.sqlserver.SQLServerDriver, show_sql=true, user.name=arballon, java.class.path=C:\eclipse\workspace\ArballonGWT\build\classes;C:\eclipse\workspace\gwtde\gwtde-0.1.1.jar;C:\mygwt-0.5.0\mygwt.jar;C:\gwt-windows-1.4.61\gwt-user.jar;C:\gwt-windows-1.4.61\gwt-servlet.jar;C:\hibernate-3.2\hibernate-annotations-3.3.1.GA\lib\ejb3-persistence.jar;C:\hibernate-3.2\hibernate-annotations-3.3.1.GA\hibernate-annotations.jar;C:\hibernate-3.2\hibernate-annotations-3.3.1.GA\lib\hibernate-commons-annotations.jar, format_sql=true, hibernate.bytecode.use_reflection_optimizer=false, hibernate.show_sql=true, current_session_context_class=thread, java.vm.specification.version=1.0, java.home=C:\jdk1.5.0_04\jre, sun.arch.data.model=32, hibernate.dialect=org.hibernate.dialect.SQLServerDialect, hibernate.connection.url=jdbc:microsoft:sqlserver://AYA-NOTEBOOK:1433, user.language=es, java.specification.vendor=Sun Microsystems Inc., awt.toolkit=sun.awt.windows.WToolkit, java.vm.info=mixed mode, java.version=1.5.0_04, java.ext.dirs=C:\jdk1.5.0_04\jre\lib\ext, sun.boot.class.path=C:\hibernate-3.2\hibernate3.jar;C:\hibernate-3.2\lib\commons-collections-2.1.1.jar;C:\hibernate-3.2\lib\log4j-1.2.11.jar;C:\hibernate-3.2\lib\dom4j-1.6.1.jar;C:\hibernate-3.2\lib\jta.jar;C:\hibernate-3.2\lib\antlr-2.7.6.jar;C:\hibernate-3.2\lib\asm.jar;C:\hibernate-3.2\lib\asm-attrs.jar;C:\hibernate-3.2\lib\xml-apis.jar;C:\hibernate-3.2\lib\cglib-2.1.3.jar;C:\hibernate-3.2\lib\commons-logging-1.1.1.jar;C:\hibernate-3.2\lib\xerces-2.6.2.jar;C:\SQLServerJDBC\lib\msutil.jar;C:\SQLServerJDBC\lib\msbase.jar;C:\SQLServerJDBC\lib\mssqlserver.jar;C:\jdk1.5.0_04\jre\lib\rt.jar;C:\jdk1.5.0_04\jre\lib\i18n.jar;C:\jdk1.5.0_04\jre\lib\sunrsasign.jar;C:\jdk1.5.0_04\jre\lib\jsse.jar;C:\jdk1.5.0_04\jre\lib\jce.jar;C:\jdk1.5.0_04\jre\lib\charsets.jar;C:\jdk1.5.0_04\jre\classes, java.vendor=Sun Microsystems Inc., file.separator=\, java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport.cgi, sun.io.unicode.encoding=UnicodeLittle, sun.cpu.endian=little, sun.desktop=windows, sun.cpu.isalist=}
15:03:28,485 DEBUG AnnotationConfiguration:794 - Validator not present in classpath, ignoring event listener registration
15:03:28,485 DEBUG SearchConfiguration:56 - Search not present in classpath, ignoring event listener registration
15:03:28,485 DEBUG Configuration:1291 - Preparing to build session factory with filters : {}
15:03:28,485 DEBUG AnnotationConfiguration:253 - Execute first pass mapping processing
Exception in thread "main" java.lang.ExceptionInInitializerError
   at com.arballon.gwt.core.server.util.HibernateUtil.<clinit>(HibernateUtil.java:16)
   at com.arballon.gwt.core.server.dao.HibernateDAOFactory.instantiateDAO(HibernateDAOFactory.java:14)
   at com.arballon.gwt.core.server.dao.HibernateDAOFactory.getMenuItemDAO(HibernateDAOFactory.java:8)
   at com.arballon.gwt.core.server.test.TestMenuItemDAO.<init>(TestMenuItemDAO.java:17)
   at com.arballon.gwt.core.server.test.TestMenuItemDAO.main(TestMenuItemDAO.java:50)
Caused by: java.lang.IllegalAccessError: tried to access method org.hibernate.cfg.Mappings.<init>(Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;Ljava/util/List;Ljava/util/List;Lorg/hibernate/cfg/NamingStrategy;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;Ljava/util/List;Ljava/util/Map;Ljava/util/Map;)V from class org.hibernate.cfg.ExtendedMappings
   at org.hibernate.cfg.ExtendedMappings.<init>(ExtendedMappings.java:69)
   at org.hibernate.cfg.AnnotationConfiguration.createExtendedMappings(AnnotationConfiguration.java:182)
   at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:272)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
   at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:859)
   at com.arballon.gwt.core.server.util.HibernateUtil.<clinit>(HibernateUtil.java:14)
   ... 4 more

      super(
            classes,
            collections,
            tables,
            queries,
            sqlqueries,
            sqlResultSetMappings,
            imports,
            secondPasses,
            propertyReferences,
            namingStrategy,
            typeDefs,
            filterDefinitions,
            extendsQueue,
            auxiliaryDatabaseObjects,
            tableNameBinding,
            columnNameBindingPerTable
      );

   Mappings(
         final Map classes,
         final Map collections,
         final Map tables,
         final Map queries,
         final Map sqlqueries,
         final Map sqlResultSetMappings,
         final Map imports,
         final List secondPasses,
         final List propertyReferences,
         final NamingStrategy namingStrategy,
         final Map typeDefs,
         final Map filterDefinitions,
//         final List extendsQueue,
         final Map extendsQueue,
         final List auxiliaryDatabaseObjects,
         final Map tableNamebinding,
         final Map columnNameBindingPerTable
         ) {

package com.arballon.gwt.core.server.persistent;

import java.util.HashSet;
import java.util.Set;
import javax.persistence.*;

@Entity
@DiscriminatorValue("CP")
public class MenuFolder extends MenuItem {
   private Set<MenuItem> items=new HashSet<MenuItem>();
   
   public MenuFolder(){
      super();
   }

   @OneToMany(cascade={CascadeType.PERSIST, CascadeType.MERGE}, mappedBy="folder")
   public Set<MenuItem> getItems() {
      return items;
   }

   public void setItems(Set<MenuItem> items) {
      this.items = items;
   }
   
   public void addItem(MenuItem item){
      item.setFolder(this);
      this.getItems().add(item);
   }
   
   public void removeItem(MenuItem item){
      item.setFolder(null);
      this.getItems().remove(item);
   }

}

package com.arballon.gwt.core.server.persistent;

import javax.persistence.*;

@Entity
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name="type", discriminatorType=DiscriminatorType.STRING)
@DiscriminatorValue("IT")
@Table (name="adk_menu")
public class MenuItem {
   
   private Long id;
   private String name;
   private String decription;
   private String URL;
   private MenuFolder folder;
   
   public MenuItem(){
      
   }
   
   @Id
   @GeneratedValue(strategy=GenerationType.AUTO)
   @Column(name="menu_id")
   public Long getId() {
      return id;
   }
   
   public void setId(Long id) {
      this.id = id;
   }
   public String getName() {
      return name;
   }
   public void setName(String name) {
      this.name = name;
   }
   public String getDecription() {
      return decription;
   }
   public void setDecription(String decription) {
      this.decription = decription;
   }
   public String getURL() {
      return URL;
   }
   public void setURL(String url) {
      URL = url;
   }

   @ManyToOne
   @JoinColumn(name="carpeta_id", nullable=false)
   public MenuFolder getFolder() {
      return folder;
   }

   public void setFolder(MenuFolder parent) {
      this.folder = parent;
   }

   @Override
   public boolean equals(Object obj) {
      MenuItem otherItem;
      if(obj instanceof MenuItem){
         otherItem=(MenuItem)obj;
         if(otherItem.getId().equals(this.getId())){
            return true;
         }else{
            return false;
         }
      }else{
         return false;
      }
   }

}