Hi,
I'm new to Hibernate.
I'm trying to reverse engineer hbm.xml files, pojos from an Oracle database with Ant task.
Using:
hibernate3.jar (3.5.4 distribution)
hibernate-tools-3.3.1.GA.jar

I get this:

BUILD FAILED
/jmaris/home/sreddy/java_workspace/MarisIcsDb/gen-hibernate-tools-brmrsd.xml:48: java.lang.IncompatibleClassChangeError: Found interface org.hibernate.cfg.Mappings, but class was expected
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:116)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.eclipse.ant.internal.launching.remote.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.run(InternalAntRunner.java:423)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.main(InternalAntRunner.java:137)
Caused by: java.lang.IncompatibleClassChangeError: Found interface org.hibernate.cfg.Mappings, but class was expected
at org.hibernate.cfg.reveng.MappingsDatabaseCollector.getTable(MappingsDatabaseCollector.java:25)
at org.hibernate.cfg.reveng.JDBCReader.processTables(JDBCReader.java:535)
at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:74)
at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:860)
at org.hibernate.cfg.JDBCBinder.readDatabaseSchema(JDBCBinder.java:121)
at org.hibernate.cfg.JDBCBinder.readFromDatabase(JDBCBinder.java:94)
at org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:42)
at org.hibernate.tool.ant.JDBCConfigurationTask.doConfiguration(JDBCConfigurationTask.java:83)
at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:55)
at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:302)
at org.hibernate.tool.ant.HibernateToolTask.getProperties(HibernateToolTask.java:318)
at org.hibernate.tool.ant.ExporterTask.configureExporter(ExporterTask.java:94)
at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:39)
at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
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.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
... 10 more
--- Nested Exception ---
java.lang.IncompatibleClassChangeError: Found interface org.hibernate.cfg.Mappings, but class was expected
at org.hibernate.cfg.reveng.MappingsDatabaseCollector.getTable(MappingsDatabaseCollector.java:25)
at org.hibernate.cfg.reveng.JDBCReader.processTables(JDBCReader.java:535)
at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:74)
at org.hibernate.cfg.reveng.JDBCReader.readDatabaseSchema(JDBCReader.java:860)
at org.hibernate.cfg.JDBCBinder.readDatabaseSchema(JDBCBinder.java:121)
at org.hibernate.cfg.JDBCBinder.readFromDatabase(JDBCBinder.java:94)
at org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:42)
at org.hibernate.tool.ant.JDBCConfigurationTask.doConfiguration(JDBCConfigurationTask.java:83)
at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:55)
at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:302)
at org.hibernate.tool.ant.HibernateToolTask.getProperties(HibernateToolTask.java:318)
at org.hibernate.tool.ant.ExporterTask.configureExporter(ExporterTask.java:94)
at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:39)
at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
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.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.eclipse.ant.internal.launching.remote.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.run(InternalAntRunner.java:423)
at org.eclipse.ant.internal.launching.remote.InternalAntRunner.main(InternalAntRunner.java:137)

Total time: 2 seconds

I see that other people have tried this recently (for hibernate 3.5):
viewtopic.php?f=6&t=1004766

Looks like there is compatability issue with Hibernate tools 3.3.1 which I am using.

Any idea if/when this will be addressed? Or am I missing something?