opendj-server-legacy/src/main/java/org/opends/guitools/controlpanel/ui/StandardAttributePanel.java
@@ -296,7 +296,7 @@ SortedSet<String> optionalByOcs = new TreeSet<>(lowerCaseComparator); for (ObjectClass oc : schema.getObjectClasses().values()) { if (oc.getOptionalAttributeChain().contains(attr)) if (oc.getOptionalAttributes().contains(attr)) { optionalByOcs.add(oc.getNameOrOID()); }