Here you can find the source of newList(final Collection
public static <T> List<T> newList(final Collection<T> objects)
//package com.java2s; /*/* w w w. j a v a 2 s . c o m*/ * Copyright 2003-2009 the original author or authors. * * Licensed 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 <T> List<T> newList(final T... objects) { return array(objects); } public static <T> List<T> newList(final Collection<T> objects) { return array(objects); } public static <T> List<T> array(final T... objects) { final List<T> list = new ArrayList<T>(); add(list, objects); return list; } public static <T> List<T> array(final Collection<T> collection) { final List<T> list = new ArrayList<T>(); if (collection != null && collection.size() > 0) list.addAll(collection); return list; } public static <T> List<T> add(final List<T> list, final T... objects) { if (objects == null) return list; for (final T object : objects) list.add(object); return list; } }