90 lines
2.8 KiB
Java
90 lines
2.8 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import javax.sound.sampled.AudioSystem;
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import javax.sound.sampled.Mixer;
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import javax.sound.sampled.spi.MixerProvider;
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import static java.util.ServiceLoader.load;
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/**
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* @test
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* @key sound
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* @bug 8135100
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* @author Sergey Bylokhov
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*/
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public final class ExpectedNPEOnNull {
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public static void main(final String[] args) throws Exception {
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testAS();
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for (final MixerProvider mp : load(MixerProvider.class)) {
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testMP(mp);
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}
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testMP(customMP);
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}
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/**
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* Tests the part of AudioSystem API, which implemented via MixerProvider.
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*/
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private static void testAS() {
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try {
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AudioSystem.getMixer(null); // null should be accepted
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} catch (final SecurityException | IllegalArgumentException ignored) {
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// skip the specified exceptions only
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}
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}
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/**
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* Tests the MixerProvider API directly.
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*/
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private static void testMP(MixerProvider mp) {
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try {
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mp.isMixerSupported(null);
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throw new RuntimeException("NPE is expected: " + mp);
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} catch (final NullPointerException ignored) {
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}
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try {
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mp.getMixer(null); // null should be accepted
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} catch (SecurityException | IllegalArgumentException e) {
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// skip the specified exceptions only
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}
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}
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/**
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* Tests some default implementation of MixerProvider API, using the
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* custom {@code MixerProvider}, which support nothing.
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*/
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static final MixerProvider customMP = new MixerProvider() {
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@Override
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public Mixer.Info[] getMixerInfo() {
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return new Mixer.Info[0];
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}
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@Override
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public Mixer getMixer(Mixer.Info info) {
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return null;
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}
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};
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}
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