From 1182f64f287d43d2cf9d8fb90e684ccfc2fe4a2b Mon Sep 17 00:00:00 2001
From: elega <445092967@qq.com>
Date: Wed, 8 Nov 2023 00:35:38 +0800
Subject: [PATCH] Fix NPE

### What changes are proposed in this pull request?

Please outline the changes and how this PR fixes the issue.

### Why are the changes needed?

Please clarify why the changes are needed. For instance,
  1. If you propose a new API, clarify the use case for a new API.
  2. If you fix a bug, describe the bug.

### Does this PR introduce any user facing changes?

Please list the user-facing changes introduced by your change, including
  1. change in user-facing APIs
  2. addition or removal of property keys
  3. webui

			pr-link: Alluxio/alluxio#18391
			change-id: cid-24fcdc50fc0b6560f77c0f2f31ebadd78000bac8
---
 .../master/src/main/java/alluxio/master/job/LoadSubTask.java | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dora/core/server/master/src/main/java/alluxio/master/job/LoadSubTask.java b/dora/core/server/master/src/main/java/alluxio/master/job/LoadSubTask.java
index 834ab0e1ca4d..593f2b6fc111 100644
--- a/dora/core/server/master/src/main/java/alluxio/master/job/LoadSubTask.java
+++ b/dora/core/server/master/src/main/java/alluxio/master/job/LoadSubTask.java
@@ -106,10 +106,11 @@ public static LoadSubTask from(LoadFailure loadFailure, long virtualBlockSize) {
 
   @Override
   public String toString() {
+    WorkerInfo workerInfo = getWorkerInfo();
     return MoreObjects.toStringHelper(this)
         .add("UfsPath", getUfsPath())
-        .add("ShardingKey", mHashKey.asString())
-        .add("Worker", getWorkerInfo().getAddress().toString())
+        .add("ShardingKey", mHashKey == null ? null : mHashKey.asString())
+        .add("Worker", workerInfo == null ? null : workerInfo.getAddress().toString())
         .toString();
   }
 }