Bamboo deployment task position

[Ivan]

Hello

I am writing a bamboo plugin task for deployment plan. 
This task must be Final in the task list. 

1. How can I check that my task not in the "Final tasks" list? 
I know about method IsFinalising but as I understood, it only for Build plan... 

2. Or... Is there a special task type that will create task in the "Final tasks" list? 

[Marcin Gardias]

Hi, I'm pretty sure 'isFinalising' works for deployments too

[Ivan]

Hi Marcin

Thanks, I've already found it... But then I've got a problem: 
I can check the task position only when the task turn came. It is unacceptable behavior, because I need to check this task position when the Deploy started. 

That's why I'am going "plan B":
I need a special method, that can move my task to "Final Tasks List" when task created. 
I found a MoveEnvironmentTask class, but now I can't find it in the Maven repo...