Java sorted()

Collections.java

import java.util.ArrayList;
import java.util.Collection;
import java.util.Comparator;
import java.util.List;

import static java.util.Comparator.naturalOrder;

public final class Collections
{
    private Collections() {}

    public static <T extends Comparable<T>> List<T> sorted(Collection<T> collection)
    {
        return sorted(collection, naturalOrder());
    }

    public static <T> List<T> sorted(Collection<T> collection, Comparator<T> comparator)
    {
        List<T> list = new ArrayList<>(collection);
        list.sort(comparator);
        return list;
    }
}