src/java.desktop/share/classes/com/sun/media/sound/AiffFileWriter.java

@@ -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

@@ -35,10 +35,11 @@
 import java.io.FileOutputStream;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.RandomAccessFile;
 import java.io.SequenceInputStream;
+import java.util.Objects;
 
 import javax.sound.sampled.AudioFileFormat;
 import javax.sound.sampled.AudioInputStream;
 import javax.sound.sampled.AudioFormat;
 import javax.sound.sampled.AudioSystem;

@@ -82,10 +83,13 @@
         return new AudioFileFormat.Type[0];
     }
 
 
     public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException {
+        Objects.requireNonNull(stream);
+        Objects.requireNonNull(fileType);
+        Objects.requireNonNull(out);
 
         //$$fb the following check must come first ! Otherwise
         // the next frame length check may throw an IOException and
         // interrupt iterating File Writers. (see bug 4351296)
 

@@ -101,10 +105,13 @@
         return bytesWritten;
     }
 
 
     public int write(AudioInputStream stream, AudioFileFormat.Type fileType, File out) throws IOException {
+        Objects.requireNonNull(stream);
+        Objects.requireNonNull(fileType);
+        Objects.requireNonNull(out);
 
         // throws IllegalArgumentException if not supported
         AiffFileFormat aiffFileFormat = (AiffFileFormat)getAudioFileFormat(fileType, stream);
 
         // first write the file without worrying about length fields