diff --git a/spring-context/src/main/java/org/springframework/context/i18n/LocaleContextHolder.java b/spring-context/src/main/java/org/springframework/context/i18n/LocaleContextHolder.java
index 7c9eba207870..9018a322343b 100644
--- a/spring-context/src/main/java/org/springframework/context/i18n/LocaleContextHolder.java
+++ b/spring-context/src/main/java/org/springframework/context/i18n/LocaleContextHolder.java
@@ -30,6 +30,17 @@
  * by any child threads spawned by the current thread if the
  * {@code inheritable} flag is set to {@code true}.
  *
+ * <p><b>Note:</b> The {@code inheritable} flag relies on JDK
+ * {@link java.lang.InheritableThreadLocal} semantics, which only propagates
+ * the context value to <em>newly created</em> child threads at the time of
+ * their creation. In thread pool environments where threads are reused across
+ * tasks, the context is not refreshed per task submission; reused threads
+ * retain whatever value was inherited when they were originally created.
+ * This mechanism is therefore not suitable for per-task context propagation
+ * in thread pool environments. Instead, consider using a
+ * {@link org.springframework.core.task.TaskDecorator} that captures and
+ * restores the locale context around each task execution.
+ *
  * <p>Used as a central holder for the current Locale in Spring,
  * wherever necessary: for example, in MessageSourceAccessor.
  * DispatcherServlet automatically exposes its current Locale here.
@@ -42,6 +53,7 @@
  * @see LocaleContext
  * @see org.springframework.context.support.MessageSourceAccessor
  * @see org.springframework.web.servlet.DispatcherServlet
+ * @see org.springframework.core.task.TaskDecorator
  */
 public final class LocaleContextHolder {
 
@@ -91,7 +103,9 @@ public static void setLocaleContext(@Nullable LocaleContext localeContext) {
 	 * @param localeContext the current LocaleContext,
 	 * or {@code null} to reset the thread-bound context
 	 * @param inheritable whether to expose the LocaleContext as inheritable
-	 * for child threads (using an {@link InheritableThreadLocal})
+	 * for child threads (using an {@link InheritableThreadLocal}); note that
+	 * this only propagates to newly created threads, not to threads reused
+	 * in a thread pool &mdash; see the class-level note for details
 	 * @see SimpleLocaleContext
 	 * @see SimpleTimeZoneAwareLocaleContext
 	 */