Hibernate Exception: Unable to instantiate default tuplizer

I just ran into an interesting exception within a Java project. I implemented a couple of Java classes along with hibernate mapping files. Until today, everything worked just fine.

I then added some attributes/properties to a class and completed the mapping file. After deploying and testing the application I ran into the following hibernate exception:

org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]

I really couldn’t figure out what was wrong and tried almost everything. I just overlooked a little tiny detail: I misspelled a getter-method in the Java class and this led to the exception above.

Maybe it is just me, but this error message could really be a little bit more specific.

• hibernate