Bug 213822 [Regression]Can not save the modification of group in Aggregation builder
Description: [2.2.2]Can not save the modification of group in Aggregation builder Build number: 2.2.2.v20071225-0630 Steps to reproduce: 1, New a table with two groups 2, Insert a aggregation builder in group footer 3, Select the first group and click OK 4, Open the builder again and modify the group to group2 Expected result: The modification can be saved Actual result: The modification takes no effect and the report design has no dirty mark after the modification. Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
private IAggregationInfo getFunctionByDisplayName( String displayName )
	{
		IAggregationInfo[] choices = getFunctions( );
		if ( choices == null )
			return null;
		for ( int i = 0; i < choices.length; i++ )
		{
			if ( choices[i].getDisplayName( ).equals( displayName ) )
			{
				return choices[i];
			}
		}
		return null;
	}
	private String getFunctionDisplayName( String function )
	{
		try
		{
			return DataUtil.getAggregationFactory( )
					.getAggrInfo( function )
					.getDisplayName( );
		}
		catch ( BirtException e )
		{
			ExceptionHandler.handle( e );
			return null;
		}
	}
	private IAggregationInfo[] getFunctions( )
	{