Crystal Report with jdbc Oracle Thin

I'm calling a stored procedure from Crystal Report and it's seems impossible to call a stored procedure that used some sys_refcursor as parameter. I got the error ora-00900.It seems to be link to the jdbc driver.Who has an idea on this problem ?Thanks a lot
[287 byte] By [ora-00900a] at [2007-10-2 13:57:58]
# 1
> Who has an idea on this problem ? http://www-1.ibm.com/support/docview.wss?rs=693&context=SSBTEG&dc=DB520&uid=swg21230686&loc=en_US&cs=UTF-8&lang=enthis maybe some information.
aniseeda at 2007-7-13 12:03:01 > top of Java-index,Database Connectivity,Java Database Connectivity (JDBC)...