diff --git a/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java b/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java
index a7e8b3bdf..cf8994597 100644
--- a/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java
+++ b/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java
@@ -115,8 +115,7 @@ public class ExtendedMessageFormatTest {
         final String extendedPattern = "Name: {0,upper} ";
         final String pattern = extendedPattern + builtinsPattern;
 
-        final HashSet<Locale> testLocales = new HashSet<>();
-        testLocales.addAll(Arrays.asList(DateFormat.getAvailableLocales()));
+        final HashSet<Locale> testLocales = new HashSet<>(Arrays.asList(DateFormat.getAvailableLocales()));
         testLocales.retainAll(Arrays.asList(NumberFormat.getAvailableLocales()));
         testLocales.add(null);