WSAD with oracle - cant retrieve metadata for column

[samasamajam]

i am developing CMP entity beans in WSAD4.0.3 with Oracle 8.1.7 as the database. I have defined a custom finder method using ejbql --> "select e from TestBean e where e.TestName = ?1" while generating the deploy code for this bean i get the following error ---> " cant find metadata for the column TestName". TestName is a column(not primary key) in my database for the table Test. The mapping works fine because the create and findByPrimary Key are working fine, so it is not a problem with datasource.
The finder method works fine with db2 database

it is urgent, plss suggest