From 6ea2731c2b587d7c09e16c96522a9c0eca75e9da Mon Sep 17 00:00:00 2001
From: Akira Ajisaka <aajisaka@apache.org>
Date: Fri, 23 Oct 2020 04:28:17 +0900
Subject: [PATCH] HADOOP-17319. Update the checkstyle config to ban some guava
 functions. (#2400)

---
 hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml b/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
index 0ff47b887d9..51f9acc4015 100644
--- a/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
+++ b/hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml
@@ -122,6 +122,7 @@
         <module name="IllegalImport">
           <property name="regexp" value="true"/>
           <property name="illegalPkgs" value="^sun\.[^.]+, ^com\.google\.common\.[^.]+"/>
+          <property name="illegalClasses" value="^org\.apache\.hadoop\.thirdparty\.com\.google\.common\.base\.(Optional|Function|Predicate|Supplier), ^org\.apache\.hadoop\.thirdparty\.com\.google\.common\.collect\.(ImmutableListMultimap)"/>
         </module>
         <module name="RedundantImport"/>
         <module name="UnusedImports"/>