class cast bugfix

indexer-core/src/main/java/org/opengroup/osdu/indexer/util/TypeMapper.java

@@ -102,7 +102,7 @@ public class TypeMapper {
 
         if(isMap(indexerType)){
             Map<String,Object> type = (Map<String, Object>) indexerType;
-            HashMap<String, Object> propertiesMap = (HashMap<String, Object>) type.get(Constants.PROPERTIES);
+            Map<String, Object> propertiesMap = (Map<String, Object>) type.get(Constants.PROPERTIES);
             for (Map.Entry<String,Object> entry : propertiesMap.entrySet()){
                 entry.setValue(Records.Type.builder().type(entry.getValue().toString()).build());
             }