Lovely

gistfile1.txt

//code : 
class SampleController{
def action2(){
        println new SampleDomain(name :"test").save()
        render ""
}
}

| Error 2011-09-19 18:34:59,638 ["http-bio-8080"-exec-5] ERROR hibernate.AssertionFailure  - an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session)
   Line | Method
->>  46 | onApplicationEvent in org.grails.datastore.mapping.engine.event.AbstractPersistenceEventListener
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    21 | action2            in org.grailsrocks.events.SampleController$$ENAxlgvQ