Merge branch '6.1.x'

spring-context/src/test/java/org/springframework/scheduling/concurrent/ConcurrentTaskExecutorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,8 +17,8 @@
 package org.springframework.scheduling.concurrent;
 
 import java.util.concurrent.Executor;
+import java.util.concurrent.Future;
 import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.RunnableFuture;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
@@ -52,8 +52,8 @@ class ConcurrentTaskExecutorTests extends AbstractSchedulingTaskExecutorTests {
 	@AfterEach
 	void shutdownExecutor() {
 		for (Runnable task : concurrentExecutor.shutdownNow()) {
-			if (task instanceof RunnableFuture) {
-				((RunnableFuture<?>) task).cancel(true);
+			if (task instanceof Future) {
+				((Future<?>) task).cancel(true);
 			}
 		}
 	}