--- old/src/share/classes/com/sun/media/sound/AuFileReader.java	2013-09-19 16:10:12.538689500 +0400
+++ new/src/share/classes/com/sun/media/sound/AuFileReader.java	2013-09-19 16:10:12.051681200 +0400
@@ -49,13 +49,6 @@
  */
 public final class AuFileReader extends SunFileReader {
 
-    /**
-     * Constructs a new AuFileReader object.
-     */
-    public AuFileReader() {
-    }
-
-
     // METHODS TO IMPLEMENT AudioFileReader
 
     /**
@@ -90,7 +83,7 @@
         int frameRate      = -1;
         int frameSize      = -1;
         int channels       = -1;
-        int sampleSizeInBits = 0;
+        final int sampleSizeInBits;
         int length = 0;
         int nread = 0;
         AudioFormat.Encoding encoding = null;
@@ -118,6 +111,10 @@
         encoding_local = (bigendian==true ? dis.readInt() : rllong(dis) );  nread += 4;
         sampleRate     = (bigendian==true ? dis.readInt() : rllong(dis) );  nread += 4;
         channels       = (bigendian==true ? dis.readInt() : rllong(dis) );  nread += 4;
+        if (channels <= 0) {
+            dis.reset();
+            throw new UnsupportedAudioFileException("Invalid number of channels");
+        }
 
         frameRate = sampleRate;
 
@@ -372,7 +369,4 @@
 
         return result;
     }
-
-
-
 }