Here you can find the source of asList(final Object[] objectArray)
public static List<Object> asList(final Object[] objectArray)
//package com.java2s; /*// ww w . jav a 2s . co m * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ import java.util.ArrayList; import java.util.Collection; import java.util.List; public class Main { public static List<Object> asList(final Object[] objectArray) { final List<Object> list = new ArrayList<Object>(); for (final Object element : objectArray) { if (Collection.class.isAssignableFrom(element.getClass())) { @SuppressWarnings("rawtypes") final Collection collection = (Collection) element; list.addAll(asList(collection.toArray())); } else { list.add(element); } } return list; } }