From 221adf14a4a64da6fe723b4d2ccc3dc57244edf4 Mon Sep 17 00:00:00 2001
From: Johnny Lim <izeye@naver.com>
Date: Mon, 8 Dec 2025 22:51:23 +0900
Subject: [PATCH] Fix SubscriberInputStream.resume()

See gh-35978

Signed-off-by: Johnny Lim <izeye@naver.com>
---
 .../springframework/core/io/buffer/SubscriberInputStream.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spring-core/src/main/java/org/springframework/core/io/buffer/SubscriberInputStream.java b/spring-core/src/main/java/org/springframework/core/io/buffer/SubscriberInputStream.java
index db82f11f9a9..a918bf6aecc 100644
--- a/spring-core/src/main/java/org/springframework/core/io/buffer/SubscriberInputStream.java
+++ b/spring-core/src/main/java/org/springframework/core/io/buffer/SubscriberInputStream.java
@@ -188,7 +188,7 @@ final class SubscriberInputStream extends InputStream implements Subscriber<Data
 	}
 
 	private void resume() {
-		if (this.parkedThread != READY) {
+		if (this.parkedThread.get() != READY) {
 			Object old = this.parkedThread.getAndSet(READY);
 			if (old != READY) {
 				LockSupport.unpark((Thread)old);