Here you can find the source of clone(T[] array)
public static <T> T[] clone(T[] array)
//package com.java2s; /**/*from w w w . ja va 2s .c o m*/ * JSTM (http://jstm.sourceforge.net) * Distributed under the Apache License Version 2.0 * Copyright ? 2006-2007 Cyprien Noel */ public class Main { /** * clone not supported on arrays by gwt */ public static <T> T[] clone(T[] array) { return array.clone(); } }