Parsing grants

src/engine/objects/ItemTemplate.java

@@ -279,12 +279,14 @@ public class ItemTemplate {
                 }
 
             JSONArray powerGrants = (JSONArray) jsonObject.get("item_power_grant");
-            for (Object o : powerGrants) {
-                JSONObject powerGrantEntry = (JSONObject) o;
-                String power_type = (String) powerGrantEntry.get("power_type");
-                int power_value = ((Long) powerGrantEntry.get("power_value")).intValue();
-                item_power_grant.put(power_type, power_value);
-            }
+
+            if (powerGrants.isEmpty() == false)
+                for (Object o : powerGrants) {
+                    JSONObject powerGrantEntry = (JSONObject) o;
+                    String power_type = (String) powerGrantEntry.get("power_type");
+                    int power_value = ((Long) powerGrantEntry.get("power_value")).intValue();
+                    item_power_grant.put(power_type, power_value);
+                }
 
 
         } catch (Exception e) {