When I want to append an array of ints, it is easy:

1. int [] ballsFalling = new int[0];
   
   void draw(){
     ballsFalling = append(ballsFalling,5);
   }

But when I try to do the same thing (in a new sketch) with an array of booleans:

1. boolean [] ballsFalling = new boolean[0];
   
   void draw(){
     ballsFalling = append(ballsFalling,true);
   }

I get an error: "cannot convert from Object to boolean[]"
Why is this? and can I avoid it without going to an ArrayList?