Ensure that DependencyResolver is thread safe

spring-io · Aug 21, 2024 · 7900339 · 7900339
1 parent 4542e80
commit 7900339
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/start-site-verification/src/test/java/io/spring/start/site/DependencyResolver.java b/start-site-verification/src/test/java/io/spring/start/site/DependencyResolver.java
@@ -24,6 +24,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -62,7 +63,7 @@
 
 final class DependencyResolver {
 
-	private static final Collection<DependencyResolver> instances = new ArrayList<>();
+	private static final Collection<DependencyResolver> instances = new CopyOnWriteArrayList<>();
 
 	private static final ThreadLocal<DependencyResolver> instanceForThread = ThreadLocal.withInitial(() -> {
 		DependencyResolver instance = new DependencyResolver();