Here you can find the source of align(long size, long boundary)
public static long align(long size, long boundary)
//package com.java2s; /*/* w ww. j a va2 s . c o m*/ * ==================================================================== * Copyright (c) 2004-2012 TMate Software Ltd. All rights reserved. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at http://svnkit.com/license.html. * If newer versions of this license are posted there, you may use a * newer version instead, at your option. * ==================================================================== */ public class Main { public static long align(long size, long boundary) { return (size + boundary - 1) & ~(boundary - 1); } }