I've tried the dbcp driver and it works!
Thanks for all the answer i have received.
Now I'm trying to configure a DataSource with wsad (websphere 5.1), and I'm very pessimistic: I've tried with the
postgresqlPoolingDataSource, Jdbc3PoolingDataSource, dbcp.BasicDataSource and I have the following error (driver cast
exceptiondriver cannot be used as one-phase..)
I'm thinking that wsad cannot work with another datasource than the ones it provides by default(Oracle,Informix,Db2..),
soI think I'll keep my dirty and non extensible code...:(.
Thanks again for having solved my problem