diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt b/hadoop-common-project/hadoop-common/CHANGES.txt
index 75cbd2f1cc..e35cfc45b4 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -826,6 +826,9 @@ Release 2.7.0 - UNRELEASED
HADOOP-11529. Fix findbugs warnings in hadoop-archives.
(Masatake Iwasaki via wheat9)
+ HADOOP-11546. Checkstyle failing: Unable to instantiate
+ DoubleCheckedLockingCheck. (ozawa)
+
Release 2.6.1 - UNRELEASED
INCOMPATIBLE CHANGES
diff --git a/hadoop-common-project/hadoop-common/dev-support/checkstyle.xml b/hadoop-common-project/hadoop-common/dev-support/checkstyle.xml
index ad70bee176..4caa03f05d 100644
--- a/hadoop-common-project/hadoop-common/dev-support/checkstyle.xml
+++ b/hadoop-common-project/hadoop-common/dev-support/checkstyle.xml
@@ -150,7 +150,6 @@
-
diff --git a/hadoop-hdfs-project/hadoop-hdfs/dev-support/checkstyle.xml b/hadoop-hdfs-project/hadoop-hdfs/dev-support/checkstyle.xml
index 5b25fe2cb5..eda4a47163 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/dev-support/checkstyle.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/dev-support/checkstyle.xml
@@ -134,7 +134,6 @@
-
diff --git a/hadoop-tools/hadoop-azure/src/config/checkstyle.xml b/hadoop-tools/hadoop-azure/src/config/checkstyle.xml
index 9df4f78bcc..f68f6c8208 100644
--- a/hadoop-tools/hadoop-azure/src/config/checkstyle.xml
+++ b/hadoop-tools/hadoop-azure/src/config/checkstyle.xml
@@ -147,7 +147,6 @@
-