From fd353ee551ee887b557f612d12078a1af4a41396 Mon Sep 17 00:00:00 2001
From: Tim Jacomb <21194782+timja@users.noreply.github.com>
Date: Wed, 15 Sep 2021 21:13:18 +0100
Subject: [PATCH] Don't fail if file hash is null (#198)

---
 .../windowsazurestorage/service/UploadService.java       | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/microsoftopentechnologies/windowsazurestorage/service/UploadService.java b/src/main/java/com/microsoftopentechnologies/windowsazurestorage/service/UploadService.java
index 559ef988..395b2f5d 100644
--- a/src/main/java/com/microsoftopentechnologies/windowsazurestorage/service/UploadService.java
+++ b/src/main/java/com/microsoftopentechnologies/windowsazurestorage/service/UploadService.java
@@ -424,8 +424,15 @@ public UploadResult call() {
             byte[] md5 = block.getValue().getContentMd5();
             long endTime = System.currentTimeMillis();
 
+            String fileHash = null;
+            // seen to occur when uploading large files, (768mb in this case)
+            // 201 response code with no hash in response
+            if (md5 != null) {
+                fileHash = new String(md5, StandardCharsets.UTF_8);
+            }
+
             return new UploadResult(block.getStatusCode(), null,
-                    new String(md5, StandardCharsets.UTF_8),
+                    fileHash,
                     uploadObject.getName(),
                     uploadObject.getUrl(), length, uploadObject.getStorageType(),
                     startTime, endTime);