salut ,j'ai un probleme avec hibernate
j'obtient toujours l'erreur suivante:
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GRAVE: L'élément du batch 0 insert into NetAdmin.users (userName, password, name) values (Jean, pwd1, Dupont) a été annulé. Appeler getNextException pour en connaître la cause.
27 oct. 2009 14:53:33 org.hibernate.util.JDBCExceptionReporter logExceptions
ATTENTION: SQL Error: 0, SQLState: 3F000
27 oct. 2009 14:53:33 org.hibernate.util.JDBCExceptionReporter logExceptions
GRAVE: ERROR: schema "netadmin" does not exist
27 oct. 2009 14:53:33 org.hibernate.event.def.AbstractFlushingEventListener performExecutions
GRAVE: Could not synchronize database state with session
org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update
	at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:253)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
	at test.TestHibernate.main(TestHibernate.java:44)
Caused by: java.sql.BatchUpdateException: L'élément du batch 0 insert into NetAdmin.users (userName, password, name) values (Jean, pwd1, Dupont) a été annulé. Appeler getNextException pour en connaître la cause.
	at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2528)
	at org.postgresql.core.v3.QueryExecutorImpl$1.handleError(QueryExecutorImpl.java:396)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1344)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:344)
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2665)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)
	... 8 more
org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update
	at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:253)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
	at test.TestHibernate.main(TestHibernate.java:44)
Caused by: java.sql.BatchUpdateException: L'élément du batch 0 insert into NetAdmin.users (userName, password, name) values (Jean, pwd1, Dupont) a été annulé. Appeler getNextException pour en connaître la cause.
	at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2528)
	at org.postgresql.core.v3.QueryExecutorImpl$1.handleError(QueryExecutorImpl.java:396)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1344)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:344)
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2665)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)
	... 8 more
voici ma classe de test:
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public class TestHibernate {
 
	/**
         * @param args
         */
	public static void main(String[] args) {
		Session session = (Session) HibernateUtil.currentSession();
 
		Transaction tx = session.beginTransaction();
 
		Users contact = new Users();
		contact.setName("Dupont");
		contact.setUserName("Jean");
		contact.setPassword("pwd1");
		session.save(contact);
	 try{  
		tx.commit();
		 }catch(Exception e)
		 {
			 e.printStackTrace();
		 }
 
		HibernateUtil.closeSession();
 
	}
 
 
}