diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt b/hadoop-common-project/hadoop-common/CHANGES.txt
index 40d6c54d026..f0004e41d10 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -251,6 +251,9 @@ Release 2.8.0 - UNRELEASED
     HADOOP-10582. Fix the test case for copying to non-existent dir in
     TestFsShellCopy. (Kousuke Saruta via aajisaka)
 
+    HADOOP-11581. Multithreaded correctness Warnings
+    #org.apache.hadoop.fs.shell.Ls (Brahma Reddy Battula via aw)
+
 Release 2.7.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/Ls.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/Ls.java
index 171d221569d..d5c52eda9d4 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/Ls.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/Ls.java
@@ -87,7 +87,7 @@ public static void registerCommands(CommandFactory factory) {
           "  Use time of last access instead of modification for\n" +
           "      display and sorting.";
 
-  protected static final SimpleDateFormat dateFormat =
+  protected final SimpleDateFormat dateFormat =
     new SimpleDateFormat("yyyy-MM-dd HH:mm");
 
   protected int maxRepl = 3, maxLen = 10, maxOwner = 0, maxGroup = 0;