Bug 134465 JDBC DataSource->sampledb.Driver can not be finished.
Steps: 1. Create a data source, select JDBC DataSource 2. Click next 3. Select org.eclipse.birt.report.data.oda.sampledb.Driver (Classic Models Inc. SampleDB Driver) 4. Test connection(Success) The dialog can not be finished("Finish" button is still gray out)
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/profile/JDBCSelectionPageHelper.java
return ( (JDBCDriverInformation) driverChooserCombo.getElementAt( i ) ).getDriverClassName( );
				}
			}
		}
		
		return driverName;
	}
	
	/**
	 * Validates the data source and updates the window message accordingly
	 * @return
	 */
	private boolean isValidDataSource( )
	{
		return isURLBlank();
	}
	/**
	 *	Test if the input URL is blank 
	 *
	 * @return true url is blank
	 */
	private boolean isURLBlank()
	{
		String value = jdbcUrl.getText( );
		if ( value == null )
			return false;
		value = value.trim( );
		if ( value.length( ) == 0 )
			return false;
		return true;