diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/LightWeightResizableGSet.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/LightWeightResizableGSet.java
index 051e2680bc..1383a7fafe 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/LightWeightResizableGSet.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/LightWeightResizableGSet.java
@@ -33,7 +33,7 @@
  *
  * This class does not support null element.
  *
- * This class is not thread safe.
+ * This class is thread safe.
  *
  * @param <K> Key type for looking up the elements
  * @param <E> Element type, which must be