SSDM-1799 : SOB-203 - handle a case when there are no resolutions at all

SVN: 33920

screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/ResolutionChooser.java

@@ -49,7 +49,10 @@ public class ResolutionChooser extends LayoutContainer
         List<ImageResolution> resolutions = prepareResolutions(incomingResolutions);
         List<LabeledItem<ImageResolution>> items = new ArrayList<LabeledItem<ImageResolution>>();
 
-        if (resolutions != null)
+        if (resolutions.isEmpty())
+        {
+            items.add(new LabeledItem<ImageResolution>(null, viewContext.getMessage(Dict.RESOLUTION_CHOOSER_DEFAULT)));
+        } else
         {
             for (ImageResolution resolution : resolutions)
             {