diff --git a/src/java.desktop/share/classes/javax/swing/JFormattedTextField.java b/src/java.desktop/share/classes/javax/swing/JFormattedTextField.java
index 51516f79c99..77dc47ebd0e 100644
--- a/src/java.desktop/share/classes/javax/swing/JFormattedTextField.java
+++ b/src/java.desktop/share/classes/javax/swing/JFormattedTextField.java
@@ -288,10 +288,6 @@ public class JFormattedTextField extends JTextField {
      * Used to set the dirty state.
      */
     private DocumentListener documentListener;
-    /**
-     * Masked used to set the AbstractFormatterFactory.
-     */
-    private Object mask;
     /**
      * ActionMap that the TextFormatter Actions are added to.
      */