A Connection Pool that wraps a JDBC datasource to provide connections. An instance of this class is created by XConnection when it attempts to resolves a ConnectionPool name as a JNDI data source. Most methods in this implementation do nothing since configuration is handled by the underlying JDBC datasource. Users should always call XConnection.close() from their stylsheet to explicitely close their connection. However, since there is no way to enforce this (Yikes!), it is recommended that a relatively short datasource timeout be used to prevent dangling connections.