From 081092020439fce98452d6664351d800398ddfbf Mon Sep 17 00:00:00 2001
From: Nuno Santos <nsantos@adobe.com>
Date: Tue, 23 Dec 2025 11:49:17 +0100
Subject: [PATCH] CachingSegmentArchiveReader#readSegment should check if
 archive contains segment before looking up in the PersistentCache

---
 .../persistentcache/CachingSegmentArchiveReader.java        | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/persistence/persistentcache/CachingSegmentArchiveReader.java b/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/persistence/persistentcache/CachingSegmentArchiveReader.java
index 1bca0f2f073..8ef42fbf4d2 100644
--- a/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/persistence/persistentcache/CachingSegmentArchiveReader.java
+++ b/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/persistence/persistentcache/CachingSegmentArchiveReader.java
@@ -46,7 +46,11 @@ public CachingSegmentArchiveReader(
     @Override
     @Nullable
     public Buffer readSegment(long msb, long lsb) throws IOException {
-        return persistentCache.readSegment(msb, lsb, () -> delegate.readSegment(msb, lsb));
+        if (delegate.containsSegment(msb, lsb)) {
+            return persistentCache.readSegment(msb, lsb, () -> delegate.readSegment(msb, lsb));
+        } else {
+            return null;
+        }
     }
 
     @Override