Java Utililty Methods List Select

Iterator<Integer> itIndex = indices.iterator();
if (!itIndex.hasNext()) {
    return sel;
int desiredIndex = itIndex.next().intValue();
int currIndex = 0;
for (E elem : list) {
    if (currIndex == desiredIndex) {
...

List<T> result = new ArrayList<T>();
for (Integer index : indexes) {
    result.add(src.get(index));
return result;

Set<T> result = null;
for (T nextQualifier : elements) {
    if (Collections.frequency(elements, nextQualifier) > 1) {
        if (result == null) {
            result = new HashSet<T>(2);
        result.add(nextQualifier);
return (result != null) ? result : Collections.<T>emptySet();

if (list.size() == 0 || !(0 <= start && end < list.size()))
    return null;
final List<String> newList = new ArrayList<String>();
for (int index = start; index <= end; index++)
    newList.add(String.valueOf(list.get(index)));
return newList;

if (nb < 0) {
    throw new IllegalArgumentException();
if (nb == 0) {
    return Collections.emptyList();
if (nb == 1) {
    final List<List<E>> result = new ArrayList<List<E>>();
...

String retv = null;
int i = 0;
StringBuffer sb = null;
if (fieldList != null && fieldList.size() > 0) {
    if (sb == null) {
        sb = new StringBuffer();
    for (Integer index : fieldList) {
...

int index = (int) (Math.random() * list.size());
return list.get(index);