Fix JDK 1.7 dependency in #10426

Change-Id: I465225a36b0d6d9ebb4b40a32bb5ad145bdaca0b

server/src/com/vaadin/data/fieldgroup/BeanFieldGroup.java

@@ -68,7 +68,8 @@ public class BeanFieldGroup<T> extends FieldGroup {
             String minifiedFieldName = minifyFieldName(fieldName);
             try {
                 return getFieldName(beanType, minifiedFieldName);
-            } catch (SecurityException | NoSuchFieldException e) {
+            } catch (SecurityException e) {
+            } catch (NoSuchFieldException e) {
             }
         }
         return null;