From 6f0842eaa5e654c7f4976c95e5d1aba1e940983c Mon Sep 17 00:00:00 2001
From: Dawid Weiss <dweiss@apache.org>
Date: Tue, 3 Dec 2019 13:01:43 +0100
Subject: [PATCH] Use toLowerCase with an explicit locale in
 CheckLinksAndAnchors.

---
 solr/solr-ref-guide/tools/CheckLinksAndAnchors.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/solr/solr-ref-guide/tools/CheckLinksAndAnchors.java b/solr/solr-ref-guide/tools/CheckLinksAndAnchors.java
index a1641f1c589..4d356bec896 100644
--- a/solr/solr-ref-guide/tools/CheckLinksAndAnchors.java
+++ b/solr/solr-ref-guide/tools/CheckLinksAndAnchors.java
@@ -121,7 +121,7 @@ public class CheckLinksAndAnchors { // TODO: rename this class now that it does
 
   public static final class HtmlFileFilter implements FileFilter {
     public boolean accept(File pathname) {
-      return pathname.getName().toLowerCase().endsWith("html");
+      return pathname.getName().toLowerCase(Locale.ROOT).endsWith("html");
     }
   }