src/java.desktop/share/classes/javax/sound/sampled/EnumControl.java

@@ -51,11 +51,11 @@
 public abstract class EnumControl extends Control {
 
     /**
      * The set of possible values.
      */
-    private Object[] values;
+    private final Object[] values;
 
     /**
      * The current value.
      */
     private Object value;