The Method validateTransition How to set parameters?

[harainye]

I am currently experiencing problems with workflow jump processes. I need to go from node A to node B. And node B has conditions,How to set it for var4 using the validateTransition method. 

The source code is as follows:

IssueService.TransitionValidationResult validateTransition(@Nullable ApplicationUser var1, Long var2, int var3, IssueInputParameters var4);

 Case 1: no parameters

validat = issueService.validateTransition(operator, mainIssue.getId(), 11, new IssueInputParametersImpl([:]))

 Case 2: I have a parameter -- test

How to set it for var4 using the validateTransition method with parameter named test.