Graeme Rocher opened SPR-12471 and commented

Because of this code:

final Properties result = new Properties();
process(new MatchCallback() {
     @Override
     public void process(Properties properties, Map<String, Object> map) {
          result.putAll(properties);
     }
});

Ordering in YAML documents is broken since a Properties object doesn't retain ordering. This needs to be done with a LInkedHashMap instead and in fact if you look at the map passed into the process method it is a LinkedHashMap.

Affects: 4.1.2

Reference URL: apache/grails-core@d9670e1