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grafl
 Post subject: Duplicate class/entity mapping
PostPosted: Wed Mar 29, 2006 5:03 am 
Newbie

Joined: Wed Mar 29, 2006 4:37 am
Posts: 3
Hi
In attempt to develop my first EJB3, I am using jboss-4.0.4RC1 with Hibernate 3.1.2., at deploy I got these exceptions:

10:29:54,257 FATAL [PersistenceXmlLoader] exlybris JTA
10:29:54,257 INFO [Ejb3Deployment] EJB3 deployment time took: 20
10:29:54,257 INFO [JmxKernelAbstraction] installing MBean: persistence.units:unitName=unit1 with dependencies:
10:29:54,257 INFO [JmxKernelAbstraction] jboss.jca:name=ExlybrisDS,service=ManagedConnectionFactory
10:29:54,277 INFO [Ejb3Configuration] found EJB3 Entity bean: gl.ejb3.category.Category
10:29:54,377 INFO [HbmBinder] Mapping class: gl.ejb3.category.Category -> CATEGORIES
10:29:54,377 INFO [Mappings] duplicate import: gl.ejb3.category.Category->gl.ejb3.category.Category
10:29:54,377 INFO [Mappings] duplicate import: gl.ejb3.category.Category->Category
10:29:54,377 INFO [HbmBinder] Mapping class: gl.ejb3.category.Category -> CATEGORIES
10:29:54,377 WARN [ServiceController] Problem starting service persistence.units:unitName=unit1
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:97)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:974)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
at $Proxy50.start(Unknown Source)
at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:76)
at org.jboss.ejb3.Ejb3Deployment.startPersistenceUnits(Ejb3Deployment.java:599)
at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:452)
at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:139)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:974)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
at $Proxy25.start(Unknown Source)
at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:365)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
at $Proxy6.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:334)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:522)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:20
7)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:218)

at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:197)
Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping gl.ejb3.category.Category
at org.hibernate.cfg.Mappings.addClass(Mappings.java:118)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:154)
at org.hibernate.cfg.Configuration.add(Configuration.java:386)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:261)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:210)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:997)
at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:722)
at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:161)
at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:567)
at org.hibernate.ejb.Ejb3Configuration.createContainerEntityManagerFactory(Ejb3Configuration.java:245)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:108)
at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:260)
... 79 more
10:29:55,098 INFO [EJB3Deployer] Deployed: file:/C:/jboss-4.0.4RC1/server/ejb3/deploy/ejb3.jar
10:29:55,098 ERROR [URLDeploymentScanner] Incomplete Deployment listing:

--- MBeans waiting for other MBeans ---
ObjectName: persistence.units:unitName=unit1
State: FAILED
Reason: java.lang.reflect.InvocationTargetException
I Depend On:
jboss.jca:service=ManagedConnectionFactory,name=PGDS

--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: persistence.units:unitName=unit1
State: FAILED
Reason: java.lang.reflect.InvocationTargetException
I Depend On:
jboss.jca:service=ManagedConnectionFactory,name=PGDS

What causes the mapping duplication?

The entity class:

package gl.ejb3.category;

import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="categories")
/*
*
*/
public class Category implements Serializable {

static final long serialVersionUID = 321321321321654654L;
//azon stands for id
private Integer azon;
//megnevezes stands for name
private String megnevezes;

Category() {}

@Id
@Column(name="azon", nullable=false)
public Integer getAzon() {return azon;}
public void setAzon(Integer azon) {this.azon = azon;}

@Column(name="megnevezes", nullable=false)
public String getMegnevezes() {return megnevezes;}
public void setMegnevezes(String megnevezes) {this.megnevezes = megnevezes;}
}

Mapping documents:

category.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="gl.ejb3.category.Category" table="CATEGORIES">
<id name="azon" type="big_decimal">
<column name="AZON"/>
</id>
<property name="megnevezes" type="string">
<column name="MEGNEVEZES"/>
</property>
</class>
</hibernate-mapping>

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>
<!-- Database connection settings -->
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.url">jdbc:postgresql://localhost:5432/schema1</property>
<property name="connection.username">username</property>
<property name="connection.password">password</property>

<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>

<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.ProgressDialect</property>

<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>

<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>

<!-- Drop and re-create the database schema on startup -->
<!-- property name="hbm2ddl.auto">create</property -->

<mapping resource="category/category.hbm.xml"/>
</session-factory>
</hibernate-configuration>

persistence.xml

<persistence>
<persistence-unit name="unit1">
<jta-data-source>java:/PGDS</jta-data-source>
<jar-file>../ejb3.jar</jar-file>
<class>gl.ejb3.category.Category</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.ProgressDialect"/>
<!-- property name="hibernate.hbm2ddl.auto" value="create-drop"/>
<property name="jboss.entity.manager.jndi.name" value="java:/unit1"/>
<property name="jboss.entity.manager.factory.jndi.name" value="java:/unit1Factory"/-->
</properties>
</persistence-unit>
</persistence>

My JAR looks like this:

ejb3.jar
\
META-INF
\
persistence.xml
\
gl
\
ejb3
\
hibernate.cfg.xml
category
\
Category.class
category.hbm.xml
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tpalfalvi
 Post subject:
PostPosted: Wed Mar 29, 2006 6:16 am 
Newbie

Joined: Tue Jan 03, 2006 7:30 am
Posts: 18
Location: Budapest, Hungary
Quote:
What causes the mapping duplication?

You are mapping the entity twice: with annotations and with the .hbm.xml file. I'd guess you should make up your mind and drop one of them. If you are using EJB3, the hibernate.cfg.xml and *.hbm.xml files aren't needed.
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emmanuel
 Post subject:
PostPosted: Fri Mar 31, 2006 7:44 am 
Hibernate Team
Hibernate Team

Joined: Sun Sep 14, 2003 3:54 am
Posts: 7256
Location: Paris, France
There should be a precedence mechanism though. Open a JIRA issue with a minimal test case. I think the precedence mechanism mess up class packages

_________________
Emmanuel

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ilane
 Post subject:
PostPosted: Wed Apr 04, 2007 2:11 pm 
Newbie

Joined: Wed Apr 04, 2007 1:56 pm
Posts: 5
Location: Boston Area
I was getting this error (DuplicateMappingException) when I accidentally had mapping turned on in my hibernate.cfg.xml file.
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