Bug 189806 Add aggregation data item to a table - Exception is thrown
- Add a table with dataset to a report design - DnD aggregation from palette to the table footer - Aggregation builder is shown - Choose SUM function on "Quantity orderred" data field Current behavior - A exception is thrown which say java.util.EmptyStackException
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
{
		if ( getBinding( ) == null )
		{
			setTypeSelect( dataTypes[0] );
			setName( DEFAULT_ITEM_NAME );
		}
		else
		{
			setName( getBinding( ).getName( ) );
			setDisplayName( getBinding().getDisplayName( ) );
			setTypeSelect( DATA_TYPE_CHOICE_SET.findChoice( getBinding( ).getDataType( ) )
					.getDisplayName( ) );
			setDataFieldExpression( getBinding( ).getExpression( ) );
		}
		if ( isAggregate( ) )
		{
			initFunction( );
			initDataFields( );
			initFilter( );
			initGroups( );
		}
	}
	private void initFilter( )
	{
		if ( binding != null && binding.getFilterExpression( ) != null )
		{
			txtFilter.setText( binding.getFilterExpression( ) );
		}
	}
	private void initFunction( )