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
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/dialogs/CrosstabBindingDialogHelper.java
AggregationArgument argHandle = StructureFactory.createAggregationArgument( );
				argHandle.setName( arg );
				argHandle.setValue( ( (Text) argsMap.get( arg ) ).getText( ) );
				this.binding.addArgument( argHandle );
			}
		}
	}
	public void validate( )
	{
		if ( txtName != null
				&& ( txtName.getText( ) == null || txtName.getText( )
						.trim( )
						.equals( "" ) ) )
		{
			dialog.setCanFinish( false );
		}
		else if ( cmbDataField != null
				&& ( cmbDataField.getText( ) == null || cmbDataField.getText( )
						.trim( )
						.equals( "" ) ) )
		{
			dialog.setCanFinish( false );
		}
		else
		{
			dialog.setCanFinish( true );
		}
	}
}