From 91ab935d0061373208673c6054ec0265310b0c2b Mon Sep 17 00:00:00 2001
From: zhanghaobo <hfutzhanghb@163.com>
Date: Fri, 14 Mar 2025 18:10:03 +0800
Subject: [PATCH] HADOOP-19502. Add RegexpSingleline module to checkstyle.xml.

---
 .../src/main/resources/checkstyle/checkstyle.xml             | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml b/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
index ca8d137dd5e49..574c48d4286bb 100644
--- a/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
+++ b/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
@@ -73,6 +73,11 @@
         <property name="max" value="100"/>
     </module>
 
+    <module name="RegexpSingleline">
+        <property name="format" value="\s+$"/>
+        <property name="severity" value="warn"/>
+    </module>
+
     <module name="TreeWalker">
 
         <module name="SuppressWarningsHolder"/>