I am new bea.
I am using eclipse.
when i click hibernate code generation.
Following error occurs..
Exception while generating code
Reason :
java.lang.IndexOutOfBoundsException : Index :0, size:0;

other than that when i click HibernateConsole --> Datebase there is bunch of warings
sample ::
!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.836
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - Rev.eng. strategy did not report any primary key columns for USER_ADVISOR_SQLW_PARAMETERS

!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.845
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - The JDBC driver didn't report any primary key columns in ALL_CAPTURE_PREPARED_DATABASE. Asking rev.eng. strategy

!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.846
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - Rev.eng. strategy did not report any primary key columns for ALL_CAPTURE_PREPARED_DATABASE

!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.851
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - The JDBC driver didn't report any primary key columns in SDO_ELLIPSOIDS_OLD_FORMAT. Asking rev.eng. strategy

!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.851
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - Rev.eng. strategy did not report any primary key columns for SDO_ELLIPSOIDS_OLD_FORMAT

!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.878
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - The JDBC driver didn't report any primary key columns in KU$_10_1_PIOTABLE_VIEW. Asking rev.eng. strategy

!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.879
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - Rev.eng. strategy did not report any primary key columns for KU$_10_1_PIOTABLE_VIEW

!ENTRY org.hibernate.eclipse 2 30000 2007-06-20 09:27:28.885
!MESSAGE WARN Worker-0 org.hibernate.cfg.JDBCBinder - The JDBC driver didn't report any primary key columns in KU$_PARTITION_EST_VIEW. Asking rev.eng. strategy