Here you can find the source of asList(T... data)
protected static <T> Collection<T> asList(T... data)
//package com.java2s; /**// www . j a v a 2 s . co m * Copyright 2004-2009 Tobias Gierke <tobias.gierke@code-sourcery.de> * * 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; public class Main { protected static <T> Collection<T> asList(T... data) { Collection<T> result = new ArrayList<T>(); if (data != null) { for (T obj : data) { result.add(obj); } } return result; } }