JIRA Builtin Script Listener - Create a sub-task. - How to set assignee?

Question

I am using JIRA Builtin Script Listener - Create a sub-task. to create subtasks for Dev and QA for every story and bug in JIRA.

I would like the subtasks to be always assigned to user "Virtual QA". It seems that I have to do this through Additional issue actions field. I am trying to use:

issue.summary = ('QA: ' + issue.summary)
issue.assignee = 'Virtual QA'

This works only if I use only the first line to set the subtask summary but when I add the second line the script does not run. Can you please help me to solve it?

I was not able to help myself using the official documentation on: https://jamieechlin.atlassian.net/wiki/display/GRV/Built-In+Scripts

Answer 1

After a lot of investigation and a hundred text tickets this works :)

import com.atlassian.jira.component.ComponentAccessor
issue.summary = ('QA: ' + issue.summary)
issue.setAssignee(ComponentAccessor.getUserUtil().getUser('qa'))

Answer 2

you need to pass user object instead of string, same question here https://answers.atlassian.com/questions/66562/set-assignee-to-some-specific-user-in-post-function-script