[GitHub] [dolphinscheduler] huangchenguang123 opened a new issue, #10476: [Bug] [Master] workflow instance never stop because conditional task has no downstream task

[GitBox]

huangchenguang123 opened a new issue, #10476:
URL: https://github.com/apache/dolphinscheduler/issues/10476

   ### Search before asking
   
   - [X] I had searched in the 
[issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and 
found no similar issues.
   
   
   ### What happened
   
   If condition have no downstream task, master will npe during workflow 
run.And workflow never stop.
   <img width="926" alt="image" 
src="https://user-images.githubusercontent.com/37766284/174033206-bc173d76-3e3d-4dfd-af4f-7864bc0fb43b.png";>
   <img width="1342" alt="image" 
src="https://user-images.githubusercontent.com/37766284/174033345-3cb9bbbe-7f9f-4f8a-9529-2bab659f606a.png";>
   
   
   
   ### What you expected to happen
   
   The workflow instance completed. 
   
   ### How to reproduce
   
   <img width="637" alt="image" 
src="https://user-images.githubusercontent.com/37766284/174033843-f0ffbb23-a79b-4bef-8f93-ec4ad8f18d5f.png";>
   <img width="589" alt="image" 
src="https://user-images.githubusercontent.com/37766284/174034147-0092f7a8-d1bd-481d-9fc9-e16c7247bc36.png";>
   1.create a condition task that have no downstream task.
   2.run workflow.
   
   ### Anything else
   
   etc.
   
   ### Version
   
   dev
   
   ### Are you willing to submit PR?
   
   - [X] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   


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