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
} );
	}
	protected void setExpressionButtonImage( Button button )
	{
		String imageName;
		if ( button.isEnabled( ) )
		{
			imageName = IReportGraphicConstants.ICON_ENABLE_EXPRESSION_BUILDERS;
		}
		else
		{
			imageName = IReportGraphicConstants.ICON_DISABLE_EXPRESSION_BUILDERS;
		}
		Image image = ReportPlatformUIImages.getImage( imageName );
		GridData gd = new GridData( );
		gd.widthHint = 20;
		gd.heightHint = 20;
		button.setLayoutData( gd );
		button.setImage( image );
		if ( button.getImage( ) != null )
		{
			button.getImage( ).setBackground( button.getBackground( ) );
		}
	}
	private String getColumnBindingExpressionByName( String name )
	{
		List elementsList = DEUtil.getVisiableColumnBindingsList( this.bindingHolder );
		for ( Iterator iterator = elementsList.iterator( ); iterator.hasNext( ); )
		{
			ComputedColumnHandle binding = (ComputedColumnHandle) iterator.next( );