Here you can find the source of toByteArray(ByteBuffer buffer, int length)
public static byte[] toByteArray(ByteBuffer buffer, int length)
//package com.java2s; /*/*from ww w .j a v a2 s. co m*/ * MultiServer - Multiple Server Communication Application * Copyright (C) 2015 Kyle Fricilone * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.nio.ByteBuffer; public class Main { public static byte[] toByteArray(ByteBuffer buffer, int length) { byte[] bytes = new byte[length]; buffer.mark(); try { buffer.position(0); buffer.get(bytes, 0, bytes.length); } finally { buffer.reset(); } return bytes; } }