Q:

Expected resource of type anim when using ternary operator

This is a very silly compiler error, and I'm wondering if there's a simple way of suppressing it (such as with an annotation) ? 
The error occurs on the 2nd argument of setCustomAnimations().  The error is: Expected resource of type anim. 
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();

int exit_animation = current_popup == null ?  0 : current_popup.getExitAnimation();

transaction.setCustomAnimations( fragment.getEnterAnimation(), exit_animation ); //ERROR

If I expand the ternary line to either of the following, the error disappears.   
int exit_animation;

if ( current_popup == null )
    exit_animation = 0;
else
    exit_animation = current_popup.getExitAnimation();

Or:
int exit_animation = 0;

if ( current_popup ! = null )
    exit_animation = current_popup.getExitAnimation();

A:

The solution to suppressing the error is:
@AnimRes
int exit_animation = current_popup == null ?  0 : current_popup.getExitAnimation();

Credit to CommonsWare in the comments. 