Developing.ru

import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import oracle.jdbc.driver.*;
import oracle.sql.*;
import javax.sql.DataSource;
import javax.naming.*;

public class test extends HttpServlet{





	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		PrintWriter out = response.getWriter();

		try {
			Context initContext = new InitialContext();
			Context envContext  = (Context)initContext.lookup("java:/comp/env");
			DataSource ds = (DataSource)envContext.lookup("jdbc/info");
			conn = ds.getConnection();
			out.print("Created connection\n");
			out.print(conn.getClass());
			OracleConnection c = (OracleConnection)conn;
		}
		catch (Exception e) {
			out.print(e);
		}
		closeConnection();
	}//public doGet
	
	private void closeConnection() {
		try {
			if (conn!=null) conn.close();
			conn = null;
		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}

	private Connection conn;
}

Created connection
class org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper
java.lang.ClassCastException

настроил connection pool в tomcat 5.0.14, затем вызываю сервлет:
[code]import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import oracle.jdbc.driver.*;
import oracle.sql.*;
import javax.sql.DataSource;
import javax.naming.*;

public class test extends HttpServlet{





public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();

try {
Context initContext = new InitialContext();
Context envContext = (Context)initContext.lookup("java:/comp/env");
DataSource ds = (DataSource)envContext.lookup("jdbc/info");
conn = ds.getConnection();
out.print("Created connection\n");
out.print(conn.getClass());
OracleConnection c = (OracleConnection)conn;
}
catch (Exception e) {
out.print(e);
}
closeConnection();
}//public doGet

private void closeConnection() {
try {
if (conn!=null) conn.close();
conn = null;
}
catch (Exception e) {
e.printStackTrace();
}
}

private Connection conn;
}[/code]

на выходе получил
[code]Created connection
class org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper
java.lang.ClassCastException[/code]

то есть фактически я лишен возможности работать с оракловыми блобами.
есть варианты решения проблемы?