[SPARK-49502] Avoid NPE in SparkEnv.get.shuffleManager.unregisterShuffle

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.0.0
• Component/s: Spark Core
• Labels: pull-request-available
• Assignee: dzcxzl
• Reporter: dzcxzl
• Created: 03/Sep/24 14:27
• Updated: 06/Sep/24 15:50
• Resolved: 06/Sep/24 15:50

Issue Links

• is caused by: SPARK-45762 Shuffle managers defined in user jars are not available for some launch modes
• links to: GitHub Pull Request #47977