DuplicateMappingException: Duplicate class/entity mapping
---------------------------------------------------------
Key: MHIBERNATE-75
URL: http://jira.codehaus.org/browse/MHIBERNATE-75
Project: Maven 2.x Hibernate Plugin
Issue Type: Bug
Components: hbm2java
Affects Versions: 2.1
Environment: Windows XP, Java 1.6.0_03, Maven 2.0.9
Reporter: Marc
Assignee: Johann Reyes
I've been having problems with the plugin recently when rebuilding my projects
(see log below). Removing the entries from 'hibernate.cfg.xml' helps but leads
to another issue, namely an ExporterException: 'unable to create directory'
(see issue) . Why, if I specify the plugin to use the configuration
(<implementation>configuration</implementation>), it still scans my project for
mapping definitions?
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building xyz
[INFO] task-segment: [clean, install]
[INFO] ------------------------------------------------------------------------
[INFO] [clean:clean]
[INFO] Deleting directory Q:\java\eclipse\workspaces\java_uccs\trunk\xyz\target
[INFO] Preparing hibernate3:hbm2java
[WARNING] Removing: hbm2java from forked lifecycle, to prevent recursive
invocation.
[INFO] [resources:resources]
[INFO] Using default encoding to copy filtered resources.
[INFO] [hibernate3:hbm2java {execution: default}]
[INFO] using configuration task.
11:29:22,121 INFO org.hibernate.cfg.Environment - Hibernate 3.2.5
11:29:22,121 INFO org.hibernate.cfg.Environment - hibernate.properties not
found
11:29:22,121 INFO org.hibernate.cfg.Environment - Bytecode provider name :
cglib
11:29:22,121 INFO org.hibernate.cfg.Environment - using JDK 1.4
java.sql.Timestamp handling
[INFO] Configuration XML file loaded:
file:/Q:/java/eclipse/workspaces/java_uccs/trunk/xyz/src/main/resources/hibernate.cfg.xml
11:29:22,184 INFO org.hibernate.cfg.Configuration - configuring from url:
file:/Q:/java/eclipse/workspaces/java_uccs/trunk/xyz/src/main/resources/hibernate.cfg.xml
11:29:22,277 INFO org.hibernate.cfg.Configuration - Reading mappings from
resource : nl/enovation/cloverleaf/customers/bronovo/dao/Berichten.hbm.xml
11:29:22,387 INFO org.hibernate.cfg.HbmBinder - Mapping class:
xyz.dao.Berichten -> Berichten
11:29:22,402 INFO org.hibernate.cfg.Configuration - Reading mappings from
resource : nl/enovation/cloverleaf/customers/bronovo/dao/Queries.hbm.xml
11:29:22,449 INFO org.hibernate.cfg.Configuration - Configured SessionFactory:
null
[INFO] Configuration Properties file loaded:
Q:\java\eclipse\workspaces\java_uccs\trunk\xyz\src\main\resources\database.properties
11:29:22,449 INFO org.hibernate.cfg.Configuration - Reading mappings from
file:
Q:\java\eclipse\workspaces\java_uccs\trunk\xyz\target\classes\nl\enovation\cloverleaf\customers\bronovo\dao\Berichten.hbm.xm
l
11:29:22,496 INFO org.hibernate.cfg.Mappings - duplicate import:
xyz.dao.Berichten->xyz.dao.Berichten
11:29:22,496 INFO org.hibernate.cfg.Mappings - duplicate import:
xyz.dao.Berichten->Berichten
11:29:22,496 INFO org.hibernate.cfg.HbmBinder - Mapping class:
xyz.dao.Berichten -> Berichten
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Could not parse mapping document from file
Q:\java\eclipse\workspaces\java_uccs\trunk\xyz\target\classes\nl\enovation\cloverleaf\customers\bronovo\dao\Berichten.hbm.xml
Duplicate class/entity mapping xyz.dao.Berichten
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.hibernate.InvalidMappingException: Could not parse mapping document from
file
Q:\java\eclipse\workspaces\java_uccs\trunk\xyz\target\classes\nl\enovation\cloverleaf\customers\bronovo\dao\Berichten.hbm.x
ml
at org.hibernate.cfg.Configuration.addFile(Configuration.java:319)
at org.hibernate.cfg.Configuration.addDirectory(Configuration.java:662)
at org.hibernate.cfg.Configuration.addDirectory(Configuration.java:659)
at org.hibernate.cfg.Configuration.addDirectory(Configuration.java:659)
at org.hibernate.cfg.Configuration.addDirectory(Configuration.java:659)
at org.hibernate.cfg.Configuration.addDirectory(Configuration.java:659)
at org.hibernate.cfg.Configuration.addDirectory(Configuration.java:659)
at org.hibernate.cfg.Configuration.addDirectory(Configuration.java:659)
at
org.codehaus.mojo.hibernate3.configuration.DefaultComponentConfiguration.doConfiguration(DefaultComponentConfiguration.java:30)
at
org.codehaus.mojo.hibernate3.configuration.AbstractComponentConfiguration.getConfiguration(AbstractComponentConfiguration.java:40)
at
org.codehaus.mojo.hibernate3.HibernateExporterMojo.configureExporter(HibernateExporterMojo.java:188)
at
org.codehaus.mojo.hibernate3.exporter.Hbm2JavaGeneratorMojo.configureExporter(Hbm2JavaGeneratorMojo.java:69)
at
org.codehaus.mojo.hibernate3.HibernateExporterMojo.doExecute(HibernateExporterMojo.java:268)
at
org.codehaus.mojo.hibernate3.HibernateExporterMojo.execute(HibernateExporterMojo.java:140)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:451)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:558)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:499)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:478)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
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:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity
mapping xyz.dao.Berichten
at org.hibernate.cfg.Mappings.addClass(Mappings.java:118)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:145)
at org.hibernate.cfg.Configuration.add(Configuration.java:669)
at org.hibernate.cfg.Configuration.addFile(Configuration.java:309)
... 31 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6 seconds
[INFO] Finished at: Tue Apr 15 11:29:22 CEST 2008
[INFO] Final Memory: 13M/26M
[INFO] ------------------------------------------------------------------------
== plugin configuration ==
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>hibernate3-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>hbm2java</goal>
</goals>
</execution>
</executions>
<configuration>
<components>
<component>
<name>hbm2java</name>
<outputDirectory>${project.build.directory}/generated-sources/hibernate3</outputDirectory>
</component>
</components>
<componentProperties>
<implementation>configuration</implementation>
<packagename>xyz.dao</packagename>
<revengfile>${basedir}/src/main/resources/hibernate.reveng.xml</revengfile>
</componentProperties>
</configuration>
</plugin>
=== 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.connection.pool_size">1</property>
<property name="current_session_context_class">thread</property>
<property
name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<property name="show_sql">true</property>
<!--property name="hbm2ddl.auto">validate</property-->
<mapping resource="xyz/dao/Berichten.hbm.xml" />
<mapping resource="xyz/dao/Queries.hbm.xml" />
</session-factory>
</hibernate-configuration>
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