From: Markus Scherer <markus.icu@gmail.com>
Date: Wed, 27 Sep 2017 22:59:32 +0000 (+0000)
Subject: ICU-13335 make CacheValue.SoftValue.ref volatile
X-Git-Tag: release-60-rc~100
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0d9ef38e4c8e031aad66f6af727d5b417ab60aeb;p=icu

ICU-13335 make CacheValue.SoftValue.ref volatile

X-SVN-Rev: 40489
---

diff --git a/icu4j/main/classes/core/src/com/ibm/icu/impl/CacheValue.java b/icu4j/main/classes/core/src/com/ibm/icu/impl/CacheValue.java
index 340b4de48be..cf655fcadd6 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/impl/CacheValue.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/impl/CacheValue.java
@@ -129,7 +129,7 @@ public abstract class CacheValue<V> {
     }
 
     private static final class SoftValue<V> extends CacheValue<V> {
-        private Reference<V> ref;
+        private volatile Reference<V> ref;  // volatile for unsynchronized get()
 
         SoftValue(V value) { ref = new SoftReference<V>(value); }
         @Override