Bug 193913 Adding a aggregate with a column binding name that already exists should display a proper message
Build ID: 2.2RC3 Steps To Reproduce: 1.Add table to report 2.Add aggregation to table (Column Binding Name = "TEST") 3.Remove aggregate from table (the binding remains in the list of column bindings for this table) 4.Try to add the same aggregate to table (Column Binding Name = "TEST") This causes the error as shown below: An unexpected internal exception occurred.Please see log for detail. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Designer UI Plug-in ID:org.eclipse.birt.report.designer.ui Version:2.2.0.v20070613 Error Code:Error.GUIException.invokedByUnexpectedException Error Message:Caused by java.lang.NullPointerException. It should rather display a message that the binding already exists or just use the available binding for this aggregate. More information:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
}
	private void initFunction( )
	{
		cmbFunction.setItems( getFunctionDisplayNames( ) );
		
		if ( binding == null )
		{
			cmbFunction.select( 0 );
			handleFunctionSelectEvent( );
			return;
		}
		String functionString = getFunctionDisplayName( binding.getAggregateFunction( ) );
		int itemIndex = getItemIndex( getFunctionDisplayNames( ),
				functionString );
		cmbFunction.select( itemIndex );
		handleFunctionSelectEvent( );
		
		
		for ( Iterator iterator = binding.argumentsIterator( ); iterator.hasNext( ); )
		{
			AggregationArgumentHandle arg = (AggregationArgumentHandle) iterator.next( );
			String argDisplayName = getArgumentDisplayNameByName( binding.getAggregateFunction( ),
					arg.getName( ) );
			if ( argsMap.containsKey( argDisplayName ) )
			{
				if ( arg.getValue( ) != null )
				{
					Text txtArg = (Text) argsMap.get( argDisplayName );
					txtArg.setText( arg.getValue( ) );
				}