String password )
String password ) throws OdaException
	public static boolean testConnection( String driverClassName,			String connectionString, String userId,			String password ) 	{		try		{			Connection conn = JDBCDriverManager.getInstance().getConnection( 					driverClassName, connectionString, userId, password);			if ( conn == null )			{				return false;			}			else			{								if ( !conn.isClosed( ) )					conn.close( );			}					Enumeration enumeration = DriverManager.getDrivers( );			while ( enumeration.hasMoreElements( ) )			{				Driver driver = (Driver) enumeration.nextElement( );					if ( driver.acceptsURL( connectionString ) )					{						// The driver might be a wrapped driver. The toString() method of a wrapped driver is overriden 						// so that the name of driver being wrapped is returned.						if ( driver.toString( ).equalsIgnoreCase( driverClassName )								|| driver.getClass( )										.getName( )										.equalsIgnoreCase( driverClassName ) )							return true;					}			}				}		catch ( Exception e)		{		}		return false;	}