Hi,
By digging at hibernate source code it seems like the plugin was reexecuting
configuration again (hibernate format) because of the node:
<configurationfile>src/test/resources/META-INF/persistence.xml</configurationfile>
so to anyone hitting this problem, dont use <configurationfile> if you are
mapping with JPA (even if hibernate is the JPA provider).
Thanks,
-Guillaume
________________________________
From: Jeudy, Guillaume
Sent: Tue 05/08/2008 1:28 PM
To: user@mojo.codehaus.org
Subject: Hibernate3 Maven Plugin NPE
Hi,
I'm trying to leverage hibernate3 maven plugin with a JPA mapping.
I tried running mvn hibernate3:hbm2ddl and I get a NullPointerException
somewhere during the loading of hibernate mappings...
Here's my plugin config:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>hibernate3-maven-plugin</artifactId>
<configuration>
<components>
<component>
<name>hbm2ddl</name>
<implementation>jpaconfiguration</implementation>
</component>
</components>
<componentProperties>
<jdk5>true</jdk5>
<ejb3>true</ejb3>
<persistenceunit>ReferenceDataManagerTestDB</persistenceunit>
<configurationfile>src/test/resources/META-INF/persistence.xml</configurationfile>
</componentProperties>
</configuration>
<executions>
<execution>
<phase>process-classes</phase>
<goals>
<goal>hbm2ddl</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>${test.db.group}</groupId>
<artifactId>${test.db.artifact}</artifactId>
<version>${test.db.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</plugin>
Stacktrace:
[INFO] Trace
java.lang.NullPointerException
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1529)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1443)
at
org.codehaus.mojo.hibernate3.configuration.AbstractComponentConfiguration.doConfiguration(AbstractComponentConfiguration.java:77)
at
org.codehaus.mojo.hibernate3.configuration.AbstractComponentConfiguration.getConfiguration(AbstractComponentConfiguration.java:40)
at
org.codehaus.mojo.hibernate3.exporter.Hbm2DDLExporterMojo.doExecute(Hbm2DDLExporterMojo.java:87)
at
org.codehaus.mojo.hibernate3.HibernateExporterMojo.execute(HibernateExporterMojo.java:140)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:447)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:459)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:333)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:126)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:282)
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.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)
I know my hibernate configuration and mapping load fine in a spring test unit
test environment and/or application server.
Can you please advise?
Thanks,
Guillaume Jeudy
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