diff --git a/gson/gson/src/test/java/com/google/gson/JsonParserTest.java b/gson/gson/src/test/java/com/google/gson/JsonParserTest.java
index 5ba36712d0ac4f1d6098c00fb8b2dcbe7fe5be24..013af80dc7d1102d99e4c9a7148a6b3262ecdfb5 100644
--- a/gson/gson/src/test/java/com/google/gson/JsonParserTest.java
+++ b/gson/gson/src/test/java/com/google/gson/JsonParserTest.java
@@ -96,9 +96,7 @@ public class JsonParserTest {
 
   private static String repeat(String s, int times) {
     StringBuilder stringBuilder = new StringBuilder(s.length() * times);
-    for (int i = 0; i < times; i++) {
-      stringBuilder.append(s);
-    }
+    stringBuilder.append(s.repeat(times));
     return stringBuilder.toString();
   }