Method swap

Ports/CLDC11/src/java/util/Arrays.java:2781–2785

(int a, int b, Object[] arr)

    /// - `arr`: @param arr -
    /// the array in which to swap elements.
    private static void swap(int a, int b, Object[] arr) {
        Object tmp = arr[a];
        arr[a] = arr[b];
        arr[b] = tmp;
    }

    /// Performs a sort on the section of the array between the given indices
    /// using a mergesort with exponential search algorithm (in which the merge