Should i use ofNullable after checking if the value is null?

i have this method for setting the auditor in my app:

Should i use ofNullable after checking if the value is null?

i have this method for setting the auditor in my app:

Should i use ofNullable after checking if the value is null?

i have this method for setting the auditor in my app:

Should i use ofNullable after checking if the value is null?

i have this method for setting the auditor in my app:

Should i use ofNullable after checking if the value is null?

i have this method for setting the auditor in my app: