From b3626c2284ec815340dca82c921c14ee0328c135 Mon Sep 17 00:00:00 2001
From: Jack Conradson <osjdconrad@gmail.com>
Date: Thu, 4 Apr 2024 10:57:49 -0700
Subject: [PATCH] fix push to middle bug

---
 .../elasticsearch/blobcache/shared/SharedBlobCacheService.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/x-pack/plugin/blob-cache/src/main/java/org/elasticsearch/blobcache/shared/SharedBlobCacheService.java b/x-pack/plugin/blob-cache/src/main/java/org/elasticsearch/blobcache/shared/SharedBlobCacheService.java
index 6714bf712e85a..8a1e3fd24ace3 100644
--- a/x-pack/plugin/blob-cache/src/main/java/org/elasticsearch/blobcache/shared/SharedBlobCacheService.java
+++ b/x-pack/plugin/blob-cache/src/main/java/org/elasticsearch/blobcache/shared/SharedBlobCacheService.java
@@ -1319,7 +1319,7 @@ private void pushEntryToMiddle(final LRUCacheEntry entry) {
                 middle.head = entry;
                 middle.tail = entry;
             } else {
-                entry.next = middle.head.next;
+                entry.next = middle.head;
                 middle.head.prev = entry;
                 middle.head = entry;
             }