/*
* 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 java.io.File;
import java.io.OutputStream;
import java.util.Objects;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Sequence;
import javax.sound.midi.spi.MidiFileWriter;
import static java.util.ServiceLoader.load;
/**
* @test
* @bug 8143909
* @author Sergey Bylokhov
*/
public final class ExpectedNPEOnNull {
public static void main(final String[] args) throws Exception {
testMS();
for (final MidiFileWriter mfw : load(MidiFileWriter.class)) {
testMFW(mfw);
}
testMFW(customMFW);
}
/**
* Tests the part of MidiSystem API, which implemented via MidiFileWriter.
*/
private static void testMS() throws Exception {
// MidiSystem#getMidiFileTypes(Sequence)
try {
MidiSystem.getMidiFileTypes(null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
// MidiSystem#isFileTypeSupported(int, Sequence)
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
MidiSystem.isFileTypeSupported(type, null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
// MidiSystem#write(Sequence, int, OutputStream)
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
MidiSystem.write(null, type, new NullOutputStream());
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
MidiSystem.write(new Sequence(0, 0), type, (OutputStream) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
MidiSystem.write(null, type, (OutputStream) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
// MidiSystem#write(Sequence, int, File)
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
MidiSystem.write(null, type, new File(""));
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
MidiSystem.write(new Sequence(0, 0), type, (File) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
MidiSystem.write(null, type, (File) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
}
/**
* Tests the MidiFileWriter API directly.
*/
private static void testMFW(final MidiFileWriter mfw) throws Exception {
// MidiFileWriter#getMidiFileTypes(Sequence)
try {
mfw.getMidiFileTypes(null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
// MidiFileWriter#isFileTypeSupported(int, Sequence)
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
mfw.isFileTypeSupported(type, null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
// MidiFileWriter#write(Sequence, int, OutputStream)
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
mfw.write(null, type, new NullOutputStream());
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
mfw.write(new Sequence(0, 0), type, (OutputStream) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
mfw.write(null, type, (OutputStream) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
// MidiFileWriter#write(Sequence, int, File)
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
mfw.write(null, type, new File(""));
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
mfw.write(new Sequence(0, 0), type, (File) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
for (final int type : MidiSystem.getMidiFileTypes()) {
try {
mfw.write(null, type, (File) null);
throw new RuntimeException("NPE is expected");
} catch (final NullPointerException ignored) {
}
}
}
/**
* Tests some default implementation of MidiFileWriter API, using the custom
* {@code MidiFileWriter}, which support nothing.
*/
static MidiFileWriter customMFW = new MidiFileWriter() {
@Override
public int[] getMidiFileTypes() {
return new int[0];
}
@Override
public int[] getMidiFileTypes(Sequence sequence) {
Objects.requireNonNull(sequence);
return new int[0];
}
@Override
public int write(Sequence in, int fileType, OutputStream out) {
Objects.requireNonNull(in);
Objects.requireNonNull(out);
return 0;
}
@Override
public int write(Sequence in, int fileType, File out) {
Objects.requireNonNull(in);
Objects.requireNonNull(out);
return 0;
}
};
private static final class NullOutputStream extends OutputStream {
@Override
public void write(final int b) {
//do nothing
}
}
}