Hibernate DB Configuration

Question

Hi everyone,
I'm having a diffiuculty connecting to my database with a Hibernate application. All configuration data are listed below in hibernate.cfg.xml . I know the data are correct because they work fine in a different application. The hibernate.cfg.xml file is located in the same directory as my HibernateUtil class, which is where the SessionFactory is created. Also, the db driver is listed as a classpath pathelement in the build script. I keep getting the error listed below. Can anyone think of a way to fix it? Thanks in advance!
Itchy
Here is the error:
com/myco/myapp/hibernate/util/HibernateUtil.java [12:1] variable sessionFactory might not have been initialized
public class HibernateUtil {
Here is the HibernateUtil code that creates the session factory:
private static final SessionFactory sessionFactory;
sessionFactory = new Configuration().configure().buildSessionFactory();
Here is hibernate.cfg.xml
<!-- Generated file - Do not edit! -->
<hibernate-configuration>
     <!-- a SessionFactory instance listed as /jndi/name -->
     <session-factory>
          <!-- properties -->
          <property name="dialect">net.sf.hibernate.dialect.SAPDBDialect</property>
          <property name="show_sql">true</property>
          <property name="use_outer_join">false</property>
               <property name="connection.username">Developer</property>
               <property name="connection.password">Developer</property>
               <property name="connection.driver_class">com.sap.dbtech.jdbc.DriverSapDB</property>
               <property name="connection.url">jdbc:sapdb://DBMACHINE/MYDB</property>
          <!-- mapping files -->
          <mapping resource="com/myco/myapp/hibernate/CompanyHibernateImpl.hbm.xml"/>
     </session-factory>
</hibernate-configuration>

Answer 1

Hi again duffymo,
I can't write it that way because it is a class variable. Sorry, I'm not following you here. This works, and it's static:
public class StaticFinalTester
    public static final String VALUE = "Am I still null?";
    public static void main(String [] args)
        System.out.println(VALUE);
Plus, I've used the class before without
problems, so I'm convinced that the error is due to
configuration.. You have an empty catch block in there - sure that's a good idea? That's the perfect way to have a problem that you'll never find. I'd print or log the exception at a minimum.
Here is the whole HibernateUtil
class:
import net.sf.hibernate.*;
import net.sf.hibernate.cfg.Configuration;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import net.sf.hibernate.MappingException;
public class HibernateUtil {
private static final SessionFactory sessionFactory;
static {
try{
sessionFactory = new
Configuration().configure().buildSessionFactory();
}catch(HibernateException e){
public static final ThreadLocal session = new
ThreadLocal();
public static Session currentSession() throws
HibernateException {
Session s = (Session) session.get();
// Open a new Session, if this Thread has none yet
if (s == null) {
s = sessionFactory.openSession();
session.set(s);
return s;
public static void closeSession()throws
HibernateException {
Session s = (Session) session.get();
session.set(null);
if (s != null)
s.close();