fix npe (apache#14369)

xvrl · Jun 6, 2023 · 5da601c · 5da601c
1 parent cfc2a8d
commit 5da601c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/...nsions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/ControllerImpl.java b/...nsions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/ControllerImpl.java
@@ -356,7 +356,9 @@ public void stopGracefully()
         }
     );
 
-    workerTaskLauncher.waitForWorkerShutdown();
+    if (workerTaskLauncher != null) {
+      workerTaskLauncher.waitForWorkerShutdown();
+    }
   }
 
   public TaskStatus runTask(final Closer closer)