Transition in ScriptRunner error in Automation

[Siavosh Kasravi]

I used to use this to transit an issue in my post function:

 WorkflowTransitionUtil workflowTransitionUtil = ( WorkflowTransitionUtil ) JiraUtils.loadComponent( WorkflowTransitionUtilImpl.class );
workflowTransitionUtil.setIssue(issue);

After I updated JIRA there are many warnings for deprecated methods.

The problem is I want to use this same snippet in a scheduled Project Automation task. But there, the second line gives me an error: Cannot find matching method.