src/java.desktop/share/classes/javax/sound/midi/MidiUnavailableException.java

@@ -37,10 +37,13 @@
  *
  * @author Kara Kytle
  */
 public class MidiUnavailableException extends Exception {
 
+    /**
+     * Use serialVersionUID from JDK 1.3 for interoperability.
+     */
     private static final long serialVersionUID = 6093809578628944323L;
 
     /**
      * Constructs a {@code MidiUnavailableException} that has {@code null} as
      * its error detail message.