Java Utililty Methods List Min

Double min = aDefalut;
if (null != aList) {
    for (Double value : aList) {
        if (null != value) {
            if (null == min) {
                min = value;
            } else {
                min = Math.min(min, value);
...

double min = Integer.MAX_VALUE;
for (Number value : values) {
    if (value.doubleValue() < min) {
        min = value.doubleValue();
return min;

if (a == null)
    return (List<T>) b;
if (b == null)
    return (List<T>) a;
List<T> result = new ArrayList<T>();
if (a.isEmpty() || b.isEmpty())
    return result;
Map<T, Integer> coeffs = new HashMap<T, Integer>();
...

for (boolean value : booleans) {
    if (!value) {
        return false;
return true;

Collections.sort(data);
int n = data.size();
return data.get(0);

double min = Double.MAX_VALUE;
for (Double d : l)
    if (d < min)
        min = d;
return min;

Collections.sort(list);
return list.get(0);

float min = values.get(0);
for (int i = 1; i < values.size(); i++) {
    min = Math.min(min, values.get(i));
return min;

long min = Long.MAX_VALUE;
for (long value : runtimeList) {
    min = Math.min(min, value);
return String.valueOf(min);

Number answer = null;
double answerValue = Double.MAX_VALUE;
for (Number number : numberList) {
    if (number.doubleValue() < answerValue) {
        answerValue = number.doubleValue();
        answer = number;
return answer;