opendj-server-legacy/src/main/java/org/opends/guitools/controlpanel/ui/MatchingRulePanel.java
@@ -235,7 +235,7 @@ type.setText(getTypeValue(matchingRule).toString()); Comparator<String> lowerCaseComparator = new LowerCaseComparator(); TreeSet<String> attributes = new TreeSet<String>(lowerCaseComparator); TreeSet<String> attributes = new TreeSet<>(lowerCaseComparator); for (AttributeType attr : schema.getAttributeTypes().values()) { if (matchingRule.equals(attr.getApproximateMatchingRule()) ||