Entity bean is clearing database?

[man99]

I have really bizzare thing going on. I have entity bean on which I am calling create - no problems. But then I have finder method findByScreename(String name) which returns User bean - and it does so - but after that it clears all database fields so there are NULL's in all database fields. Does anybody have any clue what is going on?
(I am using MySql as BD and JBoss 3.2.1_Tomcat)
Thanks.

[tdang]

I am using MySQL too, but this kind of problem never happens to me. So perhaps check your implementation and xml files.