src/java.desktop/share/classes/javax/sound/midi/spi/MidiDeviceProvider.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
+ * 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

@@ -37,10 +37,15 @@
  * @author Kara Kytle
  */
 public abstract class MidiDeviceProvider {
 
     /**
+     * Constructs a {@code MidiDeviceProvider}.
+     */
+    protected MidiDeviceProvider() {}
+
+    /**
      * Indicates whether the device provider supports the device represented by
      * the specified device info object.
      *
      * @param  info an info object that describes the device for which support
      *         is queried