hi
I think this adapter is not support for in jdbc. only jdbc support 8 databases only. same problem i faced in my porject also. we done some services on that time. we can configure postgres adapter also but you gave data source class name is wrong.you need postgresql-8[1].2dev-503.jdbc2ee.jar u need to store in integration server- lib -jars …you need to put that jar file.
You’ve put Driver instead of DataSource. Try org.postgresql.ds.PGPoolingDataSource.
Any way, webMethods JDBC Adapter does not support this database although it works fine as I tested.