GUI -- Minor adjustments to sample UI components (archetypes).

Change-Id: I410fc1822b0a3dac279b1e070e008a9c7b5d1b03
diff --git a/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java b/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java
index 50eb76b..a673f1f 100644
--- a/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java
+++ b/tools/package/archetypes/uitab/src/main/resources/archetype-resources/src/main/java/AppUiTableMessageHandler.java
@@ -123,8 +123,8 @@
             // fake data for demonstration purposes...
             Item item = getItem(id);
 
-            ObjectNode rootNode = MAPPER.createObjectNode();
-            ObjectNode data = MAPPER.createObjectNode();
+            ObjectNode rootNode = objectNode();
+            ObjectNode data = objectNode();
             rootNode.set(DETAILS, data);
 
             if (item == null) {