src/java.desktop/share/classes/javax/sound/sampled/spi/AudioFileReader.java

*** 1,7 ****
  /*
!  * Copyright (c) 1999, 2017, 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
--- 1,7 ----
  /*
!  * Copyright (c) 1999, 2020, 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
*** 43,52 ****
--- 43,57 ----
   * @since 1.3
   */
  public abstract class AudioFileReader {
  
      /**
+      * Constructs an {@code AudioFileReader}.
+      */
+     protected AudioFileReader() {}
+ 
+     /**
       * Obtains the audio file format of the input stream provided. The stream
       * must point to valid audio file data. In general, audio file readers may
       * need to read some data from the stream before determining whether they
       * support it. These parsers must be able to mark the stream, read enough
       * data to determine whether they support the stream, and reset the stream's