NIHVIVO-3114 Fix problems with dump of IndividualTemplateModel.qrData()

webapp/src/freemarker/ext/beans/WrapperExtractor.java

@@ -2,6 +2,8 @@
 
 package freemarker.ext.beans;
 
+import java.util.Set;
+
 /**
  * Class to extract wrapper used to wrap an object into a template model object. 
  * Used as workaround to gap in Freemarker template model API (can't get wrapper
@@ -16,4 +18,5 @@ public class WrapperExtractor {
     public static int getWrapperExposureLevel(BeanModel model) {
         return model.wrapper.getExposureLevel();
     }
+
 }