1 /*
2  * Copyright (c) 2001, 2007, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 package test.java.nio.Buffer;
24 
25 /**
26  * @test
27  * @bug 4490253 6535542
28  * @summary Verify that newly allocated direct buffers are initialized.
29  */
30 
31 import java.nio.ByteBuffer;
32 import org.testng.annotations.Test;
33 
34 public class AllocateDirectInit {
35     // Android-changed: Use TestNg.
36     // public static void main(String [] args){
37     @Test
testAllocate()38     public void testAllocate(){
39         for (int i = 0; i < 1024; i++) {
40             ByteBuffer bb = ByteBuffer.allocateDirect(1024);
41 //          printByteBuffer(bb);
42             for (bb.position(0); bb.position() < bb.limit(); ) {
43                 if ((bb.get() & 0xff) != 0)
44                     throw new RuntimeException("uninitialized buffer, position = "
45                                                + bb.position());
46             }
47         }
48     }
49 
printByteBuffer(ByteBuffer bb)50     private static void printByteBuffer(ByteBuffer bb) {
51         System.out.print("byte [");
52         for (bb.position(0); bb.position() < bb.limit(); )
53             System.out.print(" " + Integer.toHexString(bb.get() & 0xff));
54         System.out.println(" ]");
55     }
56 }
57