Migration to org.json

src/engine/objects/ItemTemplate.java

@@ -547,8 +547,8 @@ public class ItemTemplate {
 
                 JSONObject rune_sparse_json = (JSONObject) jsonObject.get("rune_sparse_data");
 
-                for (Object key : rune_sparse_json.keySet()) {
-                    String sparseType = (String) key;
+                for (String key : rune_sparse_json.keySet()) {
+                    String sparseType = key;
                     Object sparseValue = rune_sparse_json.get(sparseType);
                     rune_sparse_data.put(sparseType, sparseValue.toString());
                 }