From e183ec8998d0272884b73df7eb1a6da5adf1040a Mon Sep 17 00:00:00 2001
From: Masatake Iwasaki <iwasakims@apache.org>
Date: Wed, 8 Sep 2021 13:55:48 +0900
Subject: [PATCH] HADOOP-17897. Allow nested blocks in switch case in
 checkstyle settings. (#3394)

---
 .../src/main/resources/checkstyle/checkstyle.xml              | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml b/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
index 7ca0123ee5..73012dd47a 100644
--- a/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
+++ b/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
@@ -160,7 +160,9 @@
 
         <!-- Checks for blocks. You know, those {}'s         -->
         <!-- See http://checkstyle.sf.net/config_blocks.html -->
-        <module name="AvoidNestedBlocks"/>
+        <module name="AvoidNestedBlocks">
+          <property name="allowInSwitchCase" value="true"/>
+        </module>
         <module name="EmptyBlock"/>
         <module name="LeftCurly"/>
         <module name="NeedBraces"/>