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src/java.desktop/share/classes/javax/sound/sampled/spi/AudioFileWriter.java
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@@ -1,7 +1,7 @@
/*
- * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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. Oracle designates this
@@ -26,10 +26,11 @@
package javax.sound.sampled.spi;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
+import java.util.Objects;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import static javax.sound.sampled.AudioFileFormat.Type;
@@ -58,12 +59,14 @@
* provided by this audio file writer.
*
* @param fileType the file type for which write capabilities are queried
* @return {@code true} if the file type is supported, otherwise
* {@code false}
+ * @throws NullPointerException if {@code fileType} is {@code null}
*/
public boolean isFileTypeSupported(Type fileType) {
+ Objects.requireNonNull(fileType);
Type types[] = getAudioFileTypes();
for(int i=0; i<types.length; i++) {
if( fileType.equals( types[i] ) ) {
@@ -79,10 +82,11 @@
*
* @param stream the audio input stream for which audio file type support
* is queried
* @return array of file types. If no file types are supported, an array of
* length 0 is returned.
+ * @throws NullPointerException if {@code stream} is {@code null}
*/
public abstract Type[] getAudioFileTypes(AudioInputStream stream);
/**
* Indicates whether an audio file of the type specified can be written from
@@ -90,13 +94,15 @@
*
* @param fileType file type for which write capabilities are queried
* @param stream for which file writing support is queried
* @return {@code true} if the file type is supported for this audio input
* stream, otherwise {@code false}
+ * @throws NullPointerException if {@code fileType} or {@code stream} are
+ * {@code null}
*/
public boolean isFileTypeSupported(Type fileType, AudioInputStream stream) {
-
+ Objects.requireNonNull(fileType);
Type types[] = getAudioFileTypes( stream );
for(int i=0; i<types.length; i++) {
if( fileType.equals( types[i] ) ) {
return true;
@@ -119,10 +125,12 @@
* @param out stream to which the file data should be written
* @return the number of bytes written to the output stream
* @throws IOException if an I/O exception occurs
* @throws IllegalArgumentException if the file type is not supported by the
* system
+ * @throws NullPointerException if {@code stream} or {@code fileType} or
+ * {@code out} are {@code null}
* @see #isFileTypeSupported(AudioFileFormat.Type, AudioInputStream)
* @see #getAudioFileTypes
*/
public abstract int write(AudioInputStream stream, Type fileType,
OutputStream out) throws IOException;
@@ -137,10 +145,12 @@
* @param out external file to which the file data should be written
* @return the number of bytes written to the file
* @throws IOException if an I/O exception occurs
* @throws IllegalArgumentException if the file format is not supported by
* the system
+ * @throws NullPointerException if {@code stream} or {@code fileType} or
+ * {@code out} are {@code null}
* @see #isFileTypeSupported
* @see #getAudioFileTypes
*/
public abstract int write(AudioInputStream stream, Type fileType, File out)
throws IOException;
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