Bug 123042 When do some operation on the data drive manager, the eclipse may be broken.
Description: When do some operation on the data drive manager, the eclipse may be broken. Steps to reproduce: 1. new a JDBC data resource, and click the "Manage drivers" 2. delete a Jar file , and click "OK" 3. click the "Manage drivers" , add the deleted Jar File and click "OK" 4. click the "Manage drivers" and click the 'Drivers' tab, and set a 'Display name' and 'URL Template' and clcik 'OK' 5. click the "Manage drivers" and click the 'Drivers' tab, and delete the 'Display name' and 'URL Template' and clcik 'OK' Actual result: The eclipse is broken. Expect result: The eclipse runs in good shape.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/util/JdbcToolKit.java
{
					info.setDisplayName( driverInfo.getDisplayName( ) );
				}
				if ( driverInfo.getUrlTemplate( ) != null
						&& driverInfo.getUrlTemplate( ).length( ) > 0 )
				{
					info.setUrlFormat( driverInfo.getUrlTemplate( ) );
				}
			}
		}
		
		return jdbcDriverInfos;
	}
	/**
	 * 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++ )
		{
			String[] resourceNames = getAllResouceNames( (File) fileList.get( i ) );
			List subDriverList = new ArrayList( );
			for ( int j = 0; j < resourceNames.length; j++ )
			{
				String resourceName = resourceNames[j];
				if ( resourceName.endsWith( ".class" ) )