I think I have found the answer under
http://publib7b.boulder.ibm.com/wasi...at_minreq.html
DB2 JDBC Provider -- Deprecated
----------------------------------------
This JDBC provider is the same as the DB2 Legacy CLI-based Type 2 JDBC Driver. This JDBC driver is deprecated. Use the DB2 Legacy CLI-based Type 2 JDBC Driver instead of this one.
DB2 JDBC Provider supports one phase data source:
COM.ibm.db2.jdbc.DB2ConnectionPoolDataSource
Requires JDBC driver files: db2java.zip (Note: If you run SQLJ in DB2 Version 8, db2jcc.jar is also required.)
Requires properties:
databaseName The name of the database from which the data source obtains connections. Example: Sample