I can't buildSessionFactory it have error code below


Exception in thread "main" java.lang.ExceptionInInitializerError
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:718)
at aa.main(aa.java:43)
Caused by: java.lang.IllegalStateException: No backend found
at net.sf.cglib.CodeGenerator.<init>(CodeGenerator.java:127)
at net.sf.cglib.KeyFactoryGenerator.<init>(KeyFactoryGenerator.java:93)
at net.sf.cglib.KeyFactory.create(KeyFactory.java:114)
at net.sf.hibernate.impl.SessionFactoryImpl.<clinit>(SessionFactoryImpl.java:229)
... 2 more

My mapping file is

<class name="db.Contact" table="contact">
<id name="ID" column="ID" unsaved-value="null">
<generator class="identity"/>
</id>
.
.
.
.
</class>

Using RC1 ?

Hi!

i have the same problem! i use RC1.

bye
N8chtschwaermer

Give FAQ a try
http://www.hibernate.org/74.html#A2

Thanks for your kindness but I have next problem.
Exception in thread "main" java.lang.NoClassDefFoundError: javax/transaction/Synchronization
at net.sf.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:310)
at net.sf.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:323)
at net.sf.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:331)
at aa.main(aa.java:48)

The class javax.transaction.Synchronization.class is in jta.jar. Make sure that is in your classpath. I use Tomcat (v4.1.29) and put it under TOMCAT_HOME/common/lib and used to have it under my webapp's /WEB-INF/lib directory.

Regards,
David

Yeah. I've got it.
I'm use eclipse and didn't include all of lib in /hibernate/lib.

thank you for all of your kindness.