Bug 191404 Connection is still successful after delete drivers[0703]
Description: Create a Sqlserver datasource and dataset, then delete the jtds driver. Click "Test Connection" is still successful, and the dataset still works. Build Version:2.2.0.v20070607-0630 Steps to reproduce: 1. Add a jtds driver, and create a Sqlserver connection and dataset. 2. Go to "Manage JDBC Drivers" dialog, and delete the driver. 3. Click "Test Connection", the connection is successful. 4. Click "Preview Results" in "Edit Data Set" dialog, it works. Expected Result: Delete driver will lose the connection.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/util/JdbcToolKit.java
{
			JDBCDriverInformation info = (JDBCDriverInformation) itr.next( );
				
			Object ob = preferenceMap.get( info.toString( ) );
			if ( ob != null )
			{
				DriverInfo driverInfo = (DriverInfo) ob;
				if ( driverInfo.getDisplayName( ) != null
						&& driverInfo.getDisplayName( ).length( ) >= 0 )
				{
					info.setDisplayName( driverInfo.getDisplayName( ) );
				}
				if ( driverInfo.getUrlTemplate( ) != null
						&& driverInfo.getUrlTemplate( ).length( ) >= 0 )
				{
					info.setUrlFormat( driverInfo.getUrlTemplate( ) );
				}
			}
		}
	}
	/**
	 * Get a List of JDBCDriverInformations loaded from the given fileList
	 * @param fileList the File List
	 * @param urlClassLoader
	 * @return List of JDBCDriverInformation
	 */
	private static List getJDBCDriverInfoList( List fileList, URLClassLoader urlClassLoader )
	{
		List driverList = new ArrayList( );
		for ( int i = 0; i < fileList.size( ); i++ )