1 /*
2 * Copyright (c) 2003, 2016, 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
24 import javax.sound.sampled.AudioFormat;
25 import javax.sound.sampled.AudioSystem;
26 import javax.sound.sampled.DataLine;
27 import javax.sound.sampled.Line;
28 import javax.sound.sampled.LineUnavailableException;
29 import javax.sound.sampled.SourceDataLine;
30 import javax.sound.sampled.TargetDataLine;
31
32 /**
33 * @test
34 * @bug 4991672
35 * @summary disabled assertion at maximum thread priority causes audio crash
36 * @run main/timeout=600 DisabledAssertionCrash
37 */
38 public class DisabledAssertionCrash {
39 private static final int bufferSize = 1024;
40
41 public static void main(String[] args) {
42
43 System.out.println("This program hangs if priority is set,");
44 System.out.println("and assertion is in the code.");
45 System.out.println("The program crashes the entire Windows system");
46 System.out.println("if assertions are disabled.");
47 try {
48 Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
49 AudioFormat audioFormat = new AudioFormat(44100,16,1,true,true);
50 Line.Info sourceDataLineInfo = new DataLine.Info(SourceDataLine.class,audioFormat);
51 SourceDataLine sourceDataLine =
52 (SourceDataLine) AudioSystem.getLine(sourceDataLineInfo);
53 System.out.println("SourceDataLine: "+sourceDataLine);
54 sourceDataLine.open(audioFormat, bufferSize);
55 sourceDataLine.start();
56 Line.Info targetDataLineInfo =
57 new DataLine.Info(TargetDataLine.class,audioFormat);
58 TargetDataLine targetDataLine =
59 (TargetDataLine) AudioSystem.getLine(targetDataLineInfo);
60 System.out.println("TargetDataLine: "+targetDataLine);
61 targetDataLine.open(audioFormat, bufferSize);
62 targetDataLine.start();
63 byte[] data = new byte[bufferSize];
64
65 // execute for 20 seconds
66 float bufferTime = (((float) data.length) / audioFormat.getFrameSize()) / audioFormat.getFrameRate();
67 int count = (int) (20.0f / bufferTime);
68 System.out.println("Buffer time: "+(bufferTime * 1000)+" millis. "+count+" iterations.");
69 for (int i = 0; i < count; i++) {
70 int cnt = targetDataLine.read(data,0,data.length);
71 sourceDataLine.write(data,0,cnt);
72 assert cnt == data.length;
73 }
74 System.out.println("Successfully recorded/played "+count+" buffers. Passed");
75 } catch(LineUnavailableException lue) {
76 System.out.println("Audio hardware is not available!");
77 lue.printStackTrace();
78 System.out.println("Cannot execute test. NOT failed.");
79 } catch(IllegalArgumentException iae) {
80 System.out.println("No audio hardware is installed!");
81 iae.printStackTrace();
82 System.out.println("Test system not correctly setup.");
83 System.out.println("Cannot execute test. NOT failed.");
84 } catch(Exception e) {
85 System.out.println("Unexpected Exception: "+e);
86 e.printStackTrace();
87 System.out.println("Cannot execute test. NOT failed.");
88 }
89 }
90 }