Merge branch '6.1.x'

spring-core/src/main/java/org/springframework/core/task/SimpleAsyncTaskExecutor.java

@@ -45,6 +45,11 @@ import org.springframework.util.concurrent.ListenableFutureTask;
  * executing a large number of short-lived tasks. Alternatively, on JDK 21,
  * consider setting {@link #setVirtualThreads} to {@code true}.
  *
+ * <p><b>NOTE: This executor does not participate in context-level lifecycle
+ * management.</b> Tasks on handed-off execution threads cannot be centrally
+ * stopped and restarted; if such tight lifecycle management is necessary,
+ * consider a common {@code ThreadPoolTaskExecutor} setup instead.
+ *
  * @author Juergen Hoeller
  * @since 2.0
  * @see #setVirtualThreads