From 12bed51b84a1ed84e559997a886cc921fac9bade Mon Sep 17 00:00:00 2001
From: btangmu <thomasbishop@wenlin.com>
Date: Tue, 28 Jan 2025 13:39:04 -0500
Subject: [PATCH] CLDR-17014 Make ExtraPaths.getInstance synchronized

-ConcurrentModificationException was thrown when ExtraPaths.getInstance called computeIfAbsent during cldr-generate-json.sh

-Unable to repro the exception before making this change; anyway, this should prevent it
---
 .../src/main/java/org/unicode/cldr/util/ExtraPaths.java         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/cldr-code/src/main/java/org/unicode/cldr/util/ExtraPaths.java b/tools/cldr-code/src/main/java/org/unicode/cldr/util/ExtraPaths.java
index 61a9053cf83..1b830842097 100644
--- a/tools/cldr-code/src/main/java/org/unicode/cldr/util/ExtraPaths.java
+++ b/tools/cldr-code/src/main/java/org/unicode/cldr/util/ExtraPaths.java
@@ -12,7 +12,7 @@ public class ExtraPaths {
 
     private static final Map<NameType, ExtraPaths> instances = new HashMap<>();
 
-    public static ExtraPaths getInstance(NameType nameType) {
+    public static synchronized ExtraPaths getInstance(NameType nameType) {
         return instances.computeIfAbsent(nameType, ExtraPaths::new);
     }