Hibernate version:
Hibernate 2.1.2
Mapping documents:
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN" "http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.datasource">java:comp/env/jdbc/hellohibernate</property>
<property name="show_sql">true</property>
<property name="dialect">net.sf.hibernate.dialect.SybaseDialect</property>

<mapping resource="com/xanada/po/Cat.hbm.xml"/>
</session-factory>
</hibernate-configuration>
use http://localhost/HelloHibernate always give this information
Hello Hibernate! net.sf.hibernate.JDBCException

Completely useless problem description. Find at least the full stacktrace/error message and the generated SQL.