Minor fix

src/main/java/it/inaf/oats/vospace/persistence/NodeDAO.java

@@ -228,11 +228,9 @@ public class NodeDAO {
         addProperty(NodeProperties.PUBLIC_READ_URI, String.valueOf(rs.getBoolean("is_public")),
                 properties);
 
-        addProperty(NodeProperties.QUOTA_URI, String.valueOf(rs.getString("quota")),
-                properties);
+        addProperty(NodeProperties.QUOTA_URI, rs.getString("quota"), properties);
 
-        addProperty(NodeProperties.MD5_URI, String.valueOf(rs.getString("content_md5")),
-                properties);
+        addProperty(NodeProperties.MD5_URI, rs.getString("content_md5"), properties);
 
         addProperty("urn:async_trans", String.valueOf(rs.getBoolean("async_trans")),
                 properties);