| /* |
| * Copyright (c) 2015, 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.sampled.AudioSystem; |
| import javax.sound.sampled.Mixer; |
| import javax.sound.sampled.spi.MixerProvider; |
| |
| import static java.util.ServiceLoader.load; |
| |
| /** |
| * @test |
| * @bug 8135100 |
| * @author Sergey Bylokhov |
| */ |
| public final class ExpectedNPEOnNull { |
| |
| public static void main(final String[] args) throws Exception { |
| testAS(); |
| for (final MixerProvider mp : load(MixerProvider.class)) { |
| testMP(mp); |
| } |
| testMP(customMP); |
| } |
| |
| /** |
| * Tests the part of AudioSystem API, which implemented via MixerProvider. |
| */ |
| private static void testAS() { |
| try { |
| AudioSystem.getMixer(null); // null should be accepted |
| } catch (final SecurityException | IllegalArgumentException ignored) { |
| // skip the specified exceptions only |
| } |
| } |
| |
| /** |
| * Tests the MixerProvider API directly. |
| */ |
| private static void testMP(MixerProvider mp) { |
| try { |
| mp.isMixerSupported(null); |
| throw new RuntimeException("NPE is expected: " + mp); |
| } catch (final NullPointerException ignored) { |
| |
| } |
| try { |
| mp.getMixer(null); // null should be accepted |
| } catch (SecurityException | IllegalArgumentException e) { |
| // skip the specified exceptions only |
| } |
| } |
| |
| /** |
| * Tests some default implementation of MixerProvider API, using the |
| * custom {@code MixerProvider}, which support nothing. |
| */ |
| static final MixerProvider customMP = new MixerProvider() { |
| @Override |
| public Mixer.Info[] getMixerInfo() { |
| return new Mixer.Info[0]; |
| } |
| |
| @Override |
| public Mixer getMixer(Mixer.Info info) { |
| return null; |
| } |
| }; |
| } |