Java Utililty Methods Array Clone

Clones an array returning a typecast result and handling null.

if (array == null) {
    return null;
return copyOf(array, array.length);

boolean[] newArray = new boolean[array.length];
System.arraycopy(array, 0, newArray, 0, array.length);
return newArray;

boolean[] ret = new boolean[in.length];
System.arraycopy(in, 0, ret, 0, in.length);
return ret;

if (input == null) {
    return null;
byte[] ret = new byte[input.length];
System.arraycopy(input, 0, ret, 0, input.length);
return ret;

if (orig == null)
    return null;
return (byte[]) orig.clone();

byte[][] clone = new byte[im.length][im[0].length];
copy(clone, im);
return clone;

if (array == null) {
    return null;
double[] clone = new double[array.length];
for (int i = 0; i < array.length; i++) {
    clone[0] = array[i];
return clone;
...

double[] ret = new double[p.length];
System.arraycopy(p, 0, ret, 0, p.length);
return ret;

if (source == null) {
    throw new IllegalArgumentException("Null 'source' argument.");
double[][] clone = new double[source.length][];
for (int i = 0; i < source.length; i++) {
    if (source[i] != null) {
        double[] row = new double[source[i].length];
        System.arraycopy(source[i], 0, row, 0, source[i].length);
...

return clone(array, 0, array.length);