module ClassA
 [@java:package:some.dir]
  type t = { a : bool; b : bool }

  let some_a [@java:constructor] () : t = {a = true; b = false }
end

module SomeModule
  [@java:package:some.other.dir]
  use ClassA
  
  let function f () : ClassA.t = some_a ()

  let function get_a (x : ClassA.t) = a x
end

module MissingUseClass
  [@java:package:yet.another] 
  [@java:class_kind:abstract]
   use SomeModule
   
   type t

   val g(self  [@W:unused_variable:N]: t) : unit

   let method(self [@W:unused_variable:N] : t) : unit =
     let x = SomeModule.f () in 
    if get_a x then
       g self

end