HibernateException with setTimestamp but works with setParameter

Question

Here's a minimal version of the code that took me a lot of time to figure out why it's not working:

Query q = session.createQuery(queryString);
q.setTimestamp(0, new java.util.Date());

 

The error was:

Unset positional parameter at position: 0

 

When I replaced setTimestamp() with setParameter():

Query q = session.createQuery(queryString);
q.setParameter(0, new java.util.Date());

 

And it worked, but I can't figure out why. I'm using hibernate 3.2.1.

EDIT: Where did the post with the other suggestion go? This was it!!

Answer 1

There was a answer here previously that suggested to use java.sql.Timestamp instead of java.util.Date. With this little modification, the setTimestamp method works as expected.