import org.checkerframework.checker.index.qual.SameLen;

class ArrayLengthEquality {
    void test(int[] a, int[] b) {
        if (a.length == b.length) {
            int @SameLen({"a", "b"}) [] c = a;
            int @SameLen({"a", "b"}) [] d = b;
        }
        if (a.length != b.length) {
            // Do nothing.
            int x = 0;
        } else {
            int @SameLen({"a", "b"}) [] e = a;
            int @SameLen({"a", "b"}) [] f = b;
        }
    }
}