From 241b3e2e14a7ea6aeb13f36f50a5c935f6758b9e Mon Sep 17 00:00:00 2001
From: Nidhi Nandwani <nidhiii@google.com>
Date: Fri, 19 Jun 2026 06:16:48 +0000
Subject: [PATCH] feat(storage): respect com.google.cloud.storage.Hasher.read
 system property in JSON read paths

Changed checksum verification to use Hasher.readHasher() instead of Hasher.defaultHasher() in HttpDownloadSessionBuilder and HttpStorageRpcHasherHelper.

[Generated-by: AI]
---
 .../com/google/cloud/storage/HttpDownloadSessionBuilder.java   | 2 +-
 .../com/google/cloud/storage/HttpStorageRpcHasherHelper.java   | 2 +-
 .../java/com/google/cloud/storage/ReadAsSeekableChannel.java   | 3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpDownloadSessionBuilder.java b/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpDownloadSessionBuilder.java
index 202cf13b3051..ab5ae876f617 100644
--- a/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpDownloadSessionBuilder.java
+++ b/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpDownloadSessionBuilder.java
@@ -58,7 +58,7 @@ public static final class ReadableByteChannelSessionBuilder {
 
     private ReadableByteChannelSessionBuilder(BlobReadChannelContext blobReadChannelContext) {
       this.blobReadChannelContext = blobReadChannelContext;
-      this.hasher = Hasher.defaultHasher();
+      this.hasher = Hasher.readHasher();
       this.autoGzipDecompression = false;
     }
 
diff --git a/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageRpcHasherHelper.java b/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageRpcHasherHelper.java
index 8f6111cb5d5d..7d1bf13ff629 100644
--- a/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageRpcHasherHelper.java
+++ b/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageRpcHasherHelper.java
@@ -40,7 +40,7 @@ public final class HttpStorageRpcHasherHelper {
   private final Hasher hasher;
 
   private HttpStorageRpcHasherHelper() {
-    hasher = Hasher.defaultHasher();
+    hasher = Hasher.readHasher();
   }
 
   /**
diff --git a/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/ReadAsSeekableChannel.java b/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/ReadAsSeekableChannel.java
index 61cdef81bf46..c2ba5d502f05 100644
--- a/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/ReadAsSeekableChannel.java
+++ b/java-storage/google-cloud-storage/src/main/java/com/google/cloud/storage/ReadAsSeekableChannel.java
@@ -46,8 +46,7 @@
 public final class ReadAsSeekableChannel extends ReadProjectionConfig<SeekableByteChannel> {
 
   static final ReadAsSeekableChannel INSTANCE =
-      new ReadAsSeekableChannel(
-          Hasher.readHasher(), LinearExponentialRangeSpecFunction.INSTANCE);
+      new ReadAsSeekableChannel(Hasher.readHasher(), LinearExponentialRangeSpecFunction.INSTANCE);
 
   private final Hasher hasher;
   private final RangeSpecFunction rangeSpecFunction;