--- /dev/null 2016-10-24 21:40:26.000000000 +0300 +++ new/test/javax/sound/midi/Devices/Reopen.java 2016-10-24 21:40:26.000000000 +0300 @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code 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 + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +import javax.sound.midi.MidiDevice; +import javax.sound.midi.MidiSystem; +import javax.sound.midi.Sequencer; +import javax.sound.midi.Synthesizer; + +/** + * @test + * @bug 4914667 + * @summary Closing and reopening MIDI IN device on Linux throws + * MidiUnavailableException + */ +public class Reopen { + + private static boolean isTestExecuted; + private static boolean isTestPassed; + + /* + * run manually: + * java Reopen 100 in for 100 iterations on the MIDI IN device + * java Reopen 16 out for 16 iterations on the MIDI OUT device + */ + public static void main(String[] args) throws Exception { + if (args.length == 0) { + doAllTests(); + } else if (args.length == 2) { + int numIterations = Integer.parseInt(args[0]); + if (args[1].equals("in")) { + doTest(numIterations, true); + } else { + doTest(numIterations, false); + } + } else { + out("usage: java Reopen in|out"); + } + } + + private static void doAllTests() throws Exception { + out("#4914667: Closing and reopening MIDI IN device on Linux throws MidiUnavailableException"); + boolean success = true; + try { + success &= doTest(20, true); // MIDI IN + success &= doTest(20, false); // MIDI OUT + isTestExecuted = true; + } catch (Exception e) { + out(e); + isTestExecuted = false; + } + isTestPassed = success; + if (isTestExecuted) { + if (isTestPassed) { + out("Test PASSED."); + } else { + throw new Exception("Test FAILED."); + } + } else { + out("Test NOT FAILED"); + } + } + + private static boolean doTest(int numIterations, boolean input) throws Exception { + MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo(); + MidiDevice outDevice = null; + MidiDevice inDevice = null; + for (int i = 0; i < infos.length; i++) { + MidiDevice device = MidiSystem.getMidiDevice(infos[i]); + if (! (device instanceof Sequencer) && + ! (device instanceof Synthesizer)) { + if (device.getMaxReceivers() != 0) { + outDevice = device; + } + if (device.getMaxTransmitters() != 0) { + inDevice = device; + } + } + } + MidiDevice testDevice = null; + if (input) { + testDevice = inDevice; + } else { + testDevice = outDevice; + } + if (testDevice == null) { + out("Cannot test: device not available."); + return true; + } + out("Using Device: " + testDevice); + + for (int i = 0; i < numIterations; i++) { + out("@@@ ITERATION: " + i); + testDevice.open(); + // This sleep ensures that the thread of MidiInDevice is started. + sleep(50); + testDevice.close(); + } + return true; + } + + private static void sleep(int milliseconds) { + try { + Thread.sleep(milliseconds); + } catch (InterruptedException e) { + } + } + + private static void out(Throwable t) { + t.printStackTrace(System.out); + } + + private static void out(String message) { + System.out.println(message); + } +}