Here you can find the source of buffer2Bytes(ByteBuffer bbuf)
public static byte[] buffer2Bytes(ByteBuffer bbuf)
//package com.java2s; /*//from ww w. j av a 2s. c o m * ByteBufferUtil.java - An utility for ByteBuffer. * * Copyright (c) 2009-2015 PIAX development team * Copyright (c) 2006-2008 Osaka University * Copyright (c) 2004-2005 BBR Inc, Osaka University * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * $Id: ByteBufferUtil.java 1176 2015-05-23 05:56:40Z teranisi $ */ import java.nio.ByteBuffer; public class Main { public static byte[] buffer2Bytes(ByteBuffer bbuf) { byte[] b = new byte[bbuf.remaining()]; int pos = bbuf.position(); bbuf.get(b); bbuf.position(pos); // rewind position return b; } }