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
txtDisplayName.setText( displayName );
	}
	private void setTypeSelect( String typeSelect )
	{
		this.typeSelect = typeSelect;
		if ( dataTypes != null && cmbType != null )
		{
			cmbType.setItems( dataTypes );
			if ( typeSelect != null )
				cmbType.select( getItemIndex( cmbType.getItems( ), typeSelect ) );
			else
				cmbType.select( 0 );
		}
	}
	private int getItemIndex( String[] items, String item )
	{
		for ( int i = 0; i < items.length; i++ )
		{
			if ( items[i].equals( item ) )
				return i;
		}
		return -1;
	}
	private void createAggregateSection( Composite composite )
	{
		new Label( composite, SWT.NONE ).setText( FUNCTION );
		cmbFunction = new Combo( composite, SWT.BORDER | SWT.READ_ONLY );
		cmbFunction.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL ) );
		WidgetUtil.createGridPlaceholder( composite, 1, false );