Java Utililty Methods Array Shuffle

if (list != null && list.size() > 0) {
    List<T> updatedList = new ArrayList<>();
    final int[] ints = new Random().ints(0, list.size()).distinct().limit(list.size()).toArray();
    for (int i = 0; i < ints.length; i++) {
        updatedList.add(list.get(i));
    return updatedList;
return null;

int size = list.size();
Random random = new Random();
for (int i = 0; i < nswaps; i++) {
    int a = random.nextInt(size);
    int b = random.nextInt(size);
    T t = list.get(a);
    list.set(a, list.get(b));
    list.set(b, t);
...

int N = a.length;
for (int i = 0; i < N; i++) {
    int r = i + uniform(N - i); 
    Object temp = a[i];
    a[i] = a[r];
    a[r] = temp;

for (int n = 0; n < a.length; n++) {
    int x = r.nextInt(a.length - n) + n;
    Object o = a[n];
    a[n] = a[x];
    a[x] = o;

for (int i = 0; i < array.length; i++) {
    int nuovaPosizione = RANDOM.nextInt(array.length);
    Object swap = array[nuovaPosizione];
    array[nuovaPosizione] = array[i];
    array[i] = swap;

for (int i = 0; i < len; i++) {
    int j = random.nextInt(len);
    Object tmp = objs[i];
    objs[i] = objs[j];
    objs[j] = tmp;

for (int i = array.length - 1; i > 0; i--) {
    int j = rand.nextInt(i + 1);
    O temp = array[i];
    array[i] = array[j];
    array[j] = temp;

for (int i = 0; i < a.length; i++) {
    int p = RAND.nextInt(a.length);
    short tmp = a[i];
    a[i] = a[p];
    a[p] = tmp;
return a;

if (str.length() <= 1)
    return str;
int split = str.length() / 2;
String temp1 = shuffle(str.substring(0, split), randObj);
String temp2 = shuffle(str.substring(split), randObj);
if (randObj.nextDouble() > 0.5)
    return temp1 + temp2;
else
...

for (int i = to; i > from + 1; i--) {
    swap(a, i - 1, rnd.nextInt(i - from) + from);
return a;