I am looking at this piece of code. This constructor delegates to the native method "System.arraycopy"

Is it Thread safe? And by that I mean can it ever throw a ConcurrentModificationException?

public Collection<Object> getConnections(Collection<Object> someCollection) {
    return new ArrayList<Object>(someCollection);
}

Does it make any difference if the collection being copied is ThreadSafe eg a CopyOnWriteArrayList?

public Collection<Object> getConnections(CopyOnWriteArrayList<Object> someCollection) {
    return new ArrayList<Object>(someCollection);
}