Hibernate Upgrade : Unknown service requested

Question

Previously I was using hibernate 3 as my project framework and I upgraded it to the hibernate 4.3.5 .

I followed these steps:

1. Replaced all the .jar files & also the dependent .jars
2. Replaced all deprecated packages
3. Replaced all the deprecated methods
4. Replaced all the deprecated Data types, classes & others.

After this build my project successfully & then try to connect with the database. Connection is successful but when i am trying to save, It gives me following error:

Unknown service requested 
[org.hibernate.engine.jdbc.spi.JdbcServices]

Is there something that I missed out ? Please Help.

Thanks

Answer 1

Find the Solution for My problem:

Session object in Hibernate is not thread safe, you should not use the same session in different threads, unless you synchornize access to Session object.

Reference : Hibernate Upgrade : Unknown service requested