class NestedArrayLengthInference {
    public void doStuff(int r) {

        int[] length16array = new int[16];

        int[] unknownLengthArray = new int[r];

        // CF seems to think that if one array has constant length, all do??
        int[][] myNewArray = new int[][] {unknownLengthArray, length16array};
        int[][] myNewArray2 = new int[][] {length16array, unknownLengthArray};
    }
}