If you want to use Proxy DataSource support, you need to create the proxy datasources from the administrative console, or use the wsadmin tool. WebSphere Extended Deployment delivers two JDBC providers for Proxy DataSource support. One is called Proxy DataSource JDBC Provider, which is for connecting to non-XA-capable data sources. The other is called Proxy DataSource JDBC Provider (XA), which is for connecting to XA-capable data sources.