More Swing plaf APIs that rely on default constructors

Summary

Add explicit constructors to public & protected classes of javax.swing.plaf packages that have default constructors.

Problem

Default constructors are not recommended for classes that are parts of a formal API.

Solution

Add explicit public no-arg constructors for public classes and protected no-arg constructor for protected classes.

Specification

diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicBorders.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicBorders.java
index 949c3e35f4a..4bb0bf9e0d1 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicBorders.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicBorders.java
@@ -47,6 +47,11 @@

 public class BasicBorders {

+    /**
+     * Constructs a {@code BasicBorders}.
+     */
+    public BasicBorders() {}
+
     /**
      * Returns a border instance for a {@code JButton}.
      *
@@ -473,6 +478,11 @@ public Insets getBorderInsets(Component c, Insets insets)       {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     public static class MarginBorder extends AbstractBorder implements UIResource {
+        /**
+         * Constructs a {@code MarginBorder}.
+         */
+        public MarginBorder() {}
+
         public Insets getBorderInsets(Component c, Insets insets)       {
             Insets margin = null;
             //
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicButtonUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicButtonUI.java
index 9347298350d..4d73309869f 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicButtonUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicButtonUI.java
@@ -76,6 +76,11 @@
     // ********************************
     //          Create PLAF
     // ********************************
+    /**
+     * Constructs a {@code BasicButtonUI}.
+     */
+    public BasicButtonUI() {}
+
     /**
      * Returns an instance of {@code BasicButtonUI}.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxMenuItemUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxMenuItemUI.java
index aa816d431b0..ccf7d2f5d34 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxMenuItemUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxMenuItemUI.java
@@ -39,6 +39,11 @@
  */
 public class BasicCheckBoxMenuItemUI extends BasicMenuItemUI {

+    /**
+     * Constructs a {@code BasicCheckBoxMenuItemUI}.
+     */
+    public BasicCheckBoxMenuItemUI() {}
+
     /**
      * Constructs a new instance of {@code BasicCheckBoxMenuItemUI}.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxUI.java
index 11b94fddab5..a1bd07282c1 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicCheckBoxUI.java
@@ -60,6 +60,11 @@
     //            Create PLAF
     // ********************************

+    /**
+     * Constructs a {@code BasicCheckBoxUI}.
+     */
+    public BasicCheckBoxUI() {}
+
     /**
      * Returns an instance of {@code BasicCheckBoxUI}.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicColorChooserUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicColorChooserUI.java
index 7ad582a0792..2259281dd8c 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicColorChooserUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicColorChooserUI.java
@@ -77,6 +77,11 @@
     protected PropertyChangeListener propertyChangeListener;
     private Handler handler;

+    /**
+     * Constructs a {@code BasicColorChooserUI}.
+     */
+    public BasicColorChooserUI() {}
+
     /**
      * Returns a new instance of {@code BasicColorChooserUI}.
      *
@@ -383,6 +388,11 @@ else if (prop == "componentOrientation") {
      * Instantiate it only within subclasses of {@code BasicColorChooserUI}.
      */
     public class PropertyHandler implements PropertyChangeListener {
+        /**
+         * Constructs a {@code PropertyHandler}.
+         */
+        public PropertyHandler() {}
+
         public void propertyChange(PropertyChangeEvent e) {
             getHandler().propertyChange(e);
         }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxEditor.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxEditor.java
index 157c1dde4f7..0e5eab8285b 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxEditor.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxEditor.java
@@ -176,5 +176,9 @@ public void setBorder(Border b) {
     @SuppressWarnings("serial") // Same-version serialization only
     public static class UIResource extends BasicComboBoxEditor
     implements javax.swing.plaf.UIResource {
+        /**
+         * Constructs a {@code UIResource}.
+         */
+        public UIResource() {}
     }
 }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxRenderer.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxRenderer.java
index 23899e72bc4..7b47386946c 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxRenderer.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxRenderer.java
@@ -145,5 +145,9 @@ public Component getListCellRendererComponent(JList<?> list,
      */
     @SuppressWarnings("serial") // Same-version serialization only
     public static class UIResource extends BasicComboBoxRenderer implements javax.swing.plaf.UIResource {
+        /**
+         * Constructs a {@code UIResource}.
+         */
+        public UIResource() {}
     }
 }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxUI.java
index 4041f9793cb..ff3a1596fbd 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxUI.java
@@ -232,6 +232,11 @@
      */
     protected Insets padding;

+    /**
+     * Constructs a {@code BasicComboBoxUI}.
+     */
+    public BasicComboBoxUI() {}
+
     // Used for calculating the default size.
     private static ListCellRenderer<Object> getDefaultListCellRenderer() {
         @SuppressWarnings("unchecked")
@@ -592,6 +597,11 @@ private Handler getHandler() {
      * <code>BasicComboBoxUI</code>.
      */
     public class KeyHandler extends KeyAdapter {
+        /**
+         * Constructs a {@code KeyHandler}.
+         */
+        public KeyHandler() {}
+
         @Override
         public void keyPressed( KeyEvent e ) {
             getHandler().keyPressed(e);
@@ -607,6 +617,11 @@ public void keyPressed( KeyEvent e ) {
      * <code>BasicComboBoxUI</code>.
      */
     public class FocusHandler implements FocusListener {
+        /**
+         * Constructs a {@code FocusHandler}.
+         */
+        public FocusHandler() {}
+
         public void focusGained( FocusEvent e ) {
             getHandler().focusGained(e);
         }
@@ -627,6 +642,11 @@ public void focusLost( FocusEvent e ) {
      * @see #createListDataListener
      */
     public class ListDataHandler implements ListDataListener {
+        /**
+         * Constructs a {@code ListDataHandler}.
+         */
+        public ListDataHandler() {}
+
         public void contentsChanged( ListDataEvent e ) {
             getHandler().contentsChanged(e);
         }
@@ -651,6 +671,11 @@ public void intervalRemoved( ListDataEvent e ) {
      * @see #createItemListener
      */
     public class ItemHandler implements ItemListener {
+        /**
+         * Constructs a {@code ItemHandler}.
+         */
+        public ItemHandler() {}
+
         // This class used to implement behavior which is now redundant.
         public void itemStateChanged(ItemEvent e) {}
     }
@@ -670,6 +695,11 @@ public void itemStateChanged(ItemEvent e) {}
      * @see #createPropertyChangeListener
      */
     public class PropertyChangeHandler implements PropertyChangeListener {
+        /**
+         * Constructs a {@code PropertyChangeHandler}.
+         */
+        public PropertyChangeHandler() {}
+
         public void propertyChange(PropertyChangeEvent e) {
             getHandler().propertyChange(e);
         }
@@ -697,6 +727,11 @@ private void updateToolTipTextForChildren() {
      * <code>BasicComboBoxUI</code>.
      */
     public class ComboBoxLayoutManager implements LayoutManager {
+        /**
+         * Constructs a {@code ComboBoxLayoutManager}.
+         */
+        public ComboBoxLayoutManager() {}
+
         public void addLayoutComponent(String name, Component comp) {}

         public void removeLayoutComponent(Component comp) {}
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboPopup.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboPopup.java
index ef779a7642e..050f27e72b4 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboPopup.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboPopup.java
@@ -733,6 +733,11 @@ public void actionPerformed(ActionEvent e){
      * @see BasicComboPopup#createMouseListener
      */
     protected class InvocationMouseHandler extends MouseAdapter {
+        /**
+         * Constructs an {@code InvocationMouseHandler}.
+         */
+        protected InvocationMouseHandler() {}
+
         /**
          * Responds to mouse-pressed events on the combo box.
          *
@@ -758,6 +763,11 @@ public void mouseReleased( MouseEvent e ) {
      * list if it is dragging over the list.
      */
     protected class InvocationMouseMotionHandler extends MouseMotionAdapter {
+        /**
+         * Constructs an {@code InvocationMouseMotionHandler}.
+         */
+        protected InvocationMouseMotionHandler() {}
+
         public void mouseDragged( MouseEvent e ) {
             getHandler().mouseDragged(e);
         }
@@ -771,6 +781,10 @@ public void mouseDragged( MouseEvent e ) {
      * BasicComboBoxUI ActionMap/InputMap methods.
      */
     public class InvocationKeyHandler extends KeyAdapter {
+        /**
+         * Constructs an {@code InvocationKeyHandler}.
+         */
+        public InvocationKeyHandler() {}
         public void keyReleased( KeyEvent e ) {}
     }

@@ -780,6 +794,10 @@ public void keyReleased( KeyEvent e ) {}
      * override.
      */
     protected class ListSelectionHandler implements ListSelectionListener {
+        /**
+         * Constructs a {@code ListSelectionHandler}.
+         */
+        protected ListSelectionHandler() {}
         public void valueChanged( ListSelectionEvent e ) {}
     }

@@ -793,6 +811,10 @@ public void valueChanged( ListSelectionEvent e ) {}
      * @see #createItemListener
      */
     public class ListDataHandler implements ListDataListener {
+        /**
+         * Constructs a {@code ListDataHandler}.
+         */
+        public ListDataHandler() {}
         public void contentsChanged( ListDataEvent e ) {}

         public void intervalAdded( ListDataEvent e ) {
@@ -806,6 +828,10 @@ public void intervalRemoved( ListDataEvent e ) {
      * This listener hides the popup when the mouse is released in the list.
      */
     protected class ListMouseHandler extends MouseAdapter {
+        /**
+         * Constructs a {@code ListMouseHandler}.
+         */
+        protected ListMouseHandler() {}
         public void mousePressed( MouseEvent e ) {
         }
         public void mouseReleased(MouseEvent anEvent) {
@@ -818,6 +844,11 @@ public void mouseReleased(MouseEvent anEvent) {
      * The selection change is not committed to the model, this is for user feedback only.
      */
     protected class ListMouseMotionHandler extends MouseMotionAdapter {
+        /**
+         * Constructs a {@code ListMouseMotionHandler}.
+         */
+        protected ListMouseMotionHandler() {}
+
         public void mouseMoved( MouseEvent anEvent ) {
             getHandler().mouseMoved(anEvent);
         }
@@ -828,6 +859,10 @@ public void mouseMoved( MouseEvent anEvent ) {
      * combo box.
      */
     protected class ItemHandler implements ItemListener {
+        /**
+         * Constructs an {@code ItemHandler}.
+         */
+        protected ItemHandler() {}
         public void itemStateChanged( ItemEvent e ) {
             getHandler().itemStateChanged(e);
         }
@@ -844,6 +879,10 @@ public void itemStateChanged( ItemEvent e ) {
      * @see #createPropertyChangeListener
      */
     protected class PropertyChangeHandler implements PropertyChangeListener {
+        /**
+         * Constructs a {@code PropertyChangeHandler}.
+         */
+        protected PropertyChangeHandler() {}
         public void propertyChange( PropertyChangeEvent e ) {
             getHandler().propertyChange(e);
         }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopIconUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopIconUI.java
index 262f36ee7d8..681ec227ccc 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopIconUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopIconUI.java
@@ -243,6 +243,11 @@ public void deiconize() {
         int __x, __y;
         Rectangle startingBounds;

+        /**
+         * Constructs a {@code MouseInputHandler}.
+         */
+        public MouseInputHandler() {}
+
         public void mouseReleased(MouseEvent e) {
             _x = 0;
             _y = 0;
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopPaneUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopPaneUI.java
index e784d2d4b2a..894e2b07d1a 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopPaneUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDesktopPaneUI.java
@@ -678,6 +678,10 @@ public boolean accept(Object sender) {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class OpenAction extends AbstractAction {
+        /**
+         * Constructs an {@code OpenAction}.
+         */
+        protected OpenAction() {}
         public void actionPerformed(ActionEvent evt) {
             JDesktopPane dp = (JDesktopPane)evt.getSource();
             SHARED_ACTION.setState(dp, Actions.RESTORE);
@@ -693,6 +697,10 @@ public boolean isEnabled() {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class CloseAction extends AbstractAction {
+        /**
+         * Constructs a {@code CloseAction}.
+         */
+        protected CloseAction() {}
         public void actionPerformed(ActionEvent evt) {
             JDesktopPane dp = (JDesktopPane)evt.getSource();
             SHARED_ACTION.setState(dp, Actions.CLOSE);
@@ -712,6 +720,10 @@ public boolean isEnabled() {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class MinimizeAction extends AbstractAction {
+        /**
+         * Constructs a {@code MinimizeAction}.
+         */
+        protected MinimizeAction() {}
         public void actionPerformed(ActionEvent evt) {
             JDesktopPane dp = (JDesktopPane)evt.getSource();
             SHARED_ACTION.setState(dp, Actions.MINIMIZE);
@@ -731,6 +743,10 @@ public boolean isEnabled() {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class MaximizeAction extends AbstractAction {
+        /**
+         * Constructs a {@code MaximizeAction}.
+         */
+        protected MaximizeAction() {}
         public void actionPerformed(ActionEvent evt) {
             JDesktopPane dp = (JDesktopPane)evt.getSource();
             SHARED_ACTION.setState(dp, Actions.MAXIMIZE);
@@ -750,6 +766,10 @@ public boolean isEnabled() {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class NavigateAction extends AbstractAction {
+        /**
+         * Constructs a {@code NavigateAction}.
+         */
+        protected NavigateAction() {}
         public void actionPerformed(ActionEvent evt) {
             JDesktopPane dp = (JDesktopPane)evt.getSource();
             dp.selectFrame(true);
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFileChooserUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFileChooserUI.java
index 8ed05e07861..18f94db3040 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFileChooserUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFileChooserUI.java
@@ -757,6 +757,12 @@ public void mouseClicked(MouseEvent e) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+
+        /**
+         * Constructs a {@code SelectionListener}.
+         */
+        protected SelectionListener() {}
+
         /** {@inheritDoc} */
         public void valueChanged(ListSelectionEvent e) {
             getHandler().valueChanged(e);
@@ -1325,6 +1331,11 @@ public String getDescription() {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class CancelSelectionAction extends AbstractAction {
+        /**
+         * Constructs a {@code CancelSelectionAction}.
+         */
+        protected CancelSelectionAction() {}
+
         /** {@inheritDoc} */
         public void actionPerformed(ActionEvent e) {
             getFileChooser().cancelSelection();
@@ -1336,6 +1347,11 @@ public void actionPerformed(ActionEvent e) {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class UpdateAction extends AbstractAction {
+        /**
+         * Constructs an {@code UpdateAction}.
+         */
+        protected UpdateAction() {}
+
         /** {@inheritDoc} */
         public void actionPerformed(ActionEvent e) {
             JFileChooser fc = getFileChooser();
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFormattedTextFieldUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFormattedTextFieldUI.java
index 690a7001692..35560bf558c 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFormattedTextFieldUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicFormattedTextFieldUI.java
@@ -34,6 +34,11 @@
  * @since 1.4
  */
 public class BasicFormattedTextFieldUI extends BasicTextFieldUI {
+    /**
+     * Constructs a {@code BasicFormattedTextFieldUI}.
+     */
+    public BasicFormattedTextFieldUI() {}
+
     /**
      * Creates a UI for a JFormattedTextField.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicGraphicsUtils.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicGraphicsUtils.java
index 26c4b6f73fe..e7febd97f09 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicGraphicsUtils.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicGraphicsUtils.java
@@ -51,6 +51,11 @@
     private static final Insets GROOVE_INSETS = new Insets(2, 2, 2, 2);
     private static final Insets ETCHED_INSETS = new Insets(2, 2, 2, 2);

+    /**
+     * Constructs a {@code BasicGraphicsUtils}.
+     */
+    public BasicGraphicsUtils() {}
+
     /**
      * Draws an etched rectangle.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicHTML.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicHTML.java
index 85304d92e34..3e1108fb25b 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicHTML.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicHTML.java
@@ -46,6 +46,11 @@
  */
 public class BasicHTML {

+    /**
+     * Constructs a {@code BasicHTML}.
+     */
+    public BasicHTML() {}
+
     /**
      * Create an html renderer for the given component and
      * string of html.
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicIconFactory.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicIconFactory.java
index b8c0465b329..8b38a29e1ed 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicIconFactory.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicIconFactory.java
@@ -61,6 +61,11 @@
     private static Icon menuItemArrowIcon;
     private static Icon menuArrowIcon;

+    /**
+     * Constructs a {@code BasicIconFactory}.
+     */
+    public BasicIconFactory() {}
+
     /**
      * Returns a menu item check icon.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameTitlePane.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameTitlePane.java
index 72b2d8be536..1a21268d74c 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameTitlePane.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameTitlePane.java
@@ -723,6 +723,11 @@ public void layoutContainer(Container c) {
      * Instantiate it only within subclasses of <code>Foo</code>.
      */
     public class PropertyChangeHandler implements PropertyChangeListener {
+        /**
+         * Constructs a {@code PropertyChangeHandler}.
+         */
+        public PropertyChangeHandler() {}
+
         // NOTE: This class exists only for backward compatibility. All
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
@@ -741,6 +746,11 @@ public void propertyChange(PropertyChangeEvent evt) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code TitlePaneLayout}.
+         */
+        public TitlePaneLayout() {}
+
         public void addLayoutComponent(String name, Component c) {
             getHandler().addLayoutComponent(name, c);
         }
@@ -930,6 +940,10 @@ public void actionPerformed(ActionEvent e) {
      */
     @SuppressWarnings("deprecation")
     public class SystemMenuBar extends JMenuBar {
+        /**
+         * Constructs a {@code SystemMenuBar}.
+         */
+        public SystemMenuBar() {}
         public boolean isFocusTraversable() { return false; }
         public void requestFocus() {}
         public void paint(Graphics g) {
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameUI.java
index 86d6686e41a..273034539f0 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicInternalFrameUI.java
@@ -646,6 +646,10 @@ public void setEastPane(JComponent c) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code InternalFramePropertyChangeListener}.
+         */
+        public InternalFramePropertyChangeListener() {}
         /**
          * Detects changes in state from the JInternalFrame and handles
          * actions.
@@ -663,6 +667,11 @@ public void propertyChange(PropertyChangeEvent evt) {
     // its functionality has been moved into Handler. If you need to add
     // new functionality add it to the Handler, but make sure this
     // class calls into the Handler.
+    /**
+     * Constructs a {@code InternalFrameLayout}.
+     */
+    public InternalFrameLayout() {}
+
       /**
        * {@inheritDoc}
        */
@@ -842,6 +851,11 @@ protected void deactivateFrame(JInternalFrame f) {

         int resizeCornerSize = 16;

+        /**
+         * Constructs a {@code BorderListener}.
+         */
+        protected BorderListener() {}
+
         public void mouseClicked(MouseEvent e) {
             if(e.getClickCount() > 1 && e.getSource() == getNorthPane()) {
                 if(frame.isIconifiable() && frame.isIcon()) {
@@ -1305,6 +1319,11 @@ public void mouseExited(MouseEvent e)    {
       // its functionality has been moved into Handler. If you need to add
       // new functionality add it to the Handler, but make sure this
       // class calls into the Handler.
+      /**
+       * Constructs a {@code ComponentHandler}.
+       */
+      protected ComponentHandler() {}
+
       /** Invoked when a JInternalFrame's parent's size changes. */
       public void componentResized(ComponentEvent e) {
           getHandler().componentResized(e);
@@ -1347,6 +1366,11 @@ protected ComponentListener createComponentListener() {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code GlassPaneDispatcher}.
+         */
+        protected GlassPaneDispatcher() {}
+
         /**
          * {@inheritDoc}
          */
@@ -1414,6 +1438,11 @@ protected MouseInputListener createGlassPaneDispatcher() {
       // its functionality has been moved into Handler. If you need to add
       // new functionality add it to the Handler, but make sure this
       // class calls into the Handler.
+      /**
+       * Constructs a {@code BasicInternalFrameListener}.
+       */
+      protected BasicInternalFrameListener() {}
+
         /**
          * {@inheritDoc}
          */
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuItemUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuItemUI.java
index 3d036358e6d..be0487d3893 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuItemUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuItemUI.java
@@ -928,6 +928,11 @@ else if (me == null)
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code MouseInputHandler}.
+         */
+        protected MouseInputHandler() {}
+
         /** {@inheritDoc} */
         public void mouseClicked(MouseEvent e) {
             getHandler().mouseClicked(e);
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuUI.java
index ba60b557d82..33699871a18 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicMenuUI.java
@@ -370,6 +370,11 @@ private void updateDefaultBackgroundColor() {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code MouseInputHandler}.
+         */
+        protected MouseInputHandler() {}
+
         public void mouseClicked(MouseEvent e) {
             getHandler().mouseClicked(e);
         }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollBarUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollBarUI.java
index b63274d4836..afb2d58b885 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollBarUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollBarUI.java
@@ -1176,6 +1176,11 @@ public boolean getSupportsAbsolutePositioning() {
      * A listener to listen for model changes.
      */
     protected class ModelListener implements ChangeListener {
+        /**
+         * Constructs a {@code ModelListener}.
+         */
+        protected ModelListener() {}
+
         public void stateChanged(ChangeEvent e) {
             if (!useCachedValue) {
                 scrollBarValue = scrollbar.getValue();
@@ -1200,6 +1205,11 @@ public void stateChanged(ChangeEvent e) {
         protected transient int currentMouseY;
         private transient int direction = +1;

+        /**
+         * Constructs a {@code TrackListener}.
+         */
+        protected TrackListener() {}
+
         /** {@inheritDoc} */
         public void mouseReleased(MouseEvent e)
         {
@@ -1498,6 +1508,11 @@ public void mouseExited(MouseEvent e) {
         // (keyfocus on scrollbars causes action without mousePress
         boolean handledEvent;

+        /**
+         * Constructs an {@code ArrowButtonListener}.
+         */
+        protected ArrowButtonListener() {}
+
         public void mousePressed(MouseEvent e)          {
             if(!scrollbar.isEnabled()) { return; }
             // not an unmodified left mouse button
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollPaneUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollPaneUI.java
index 7f80f4e51fa..f99afb35282 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollPaneUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicScrollPaneUI.java
@@ -623,6 +623,11 @@ protected ChangeListener createVSBChangeListener() {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code MouseWheelHandler}.
+         */
+        protected MouseWheelHandler() {}
+
         /**
          * Called when the mouse wheel is rotated while over a
          * JScrollPane.
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneDivider.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneDivider.java
index b8054b750fd..c5ce2a64f9c 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneDivider.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneDivider.java
@@ -552,6 +552,11 @@ protected void finishDraggingTo(int location) {
     protected class MouseHandler extends MouseAdapter
             implements MouseMotionListener
     {
+        /**
+         * Constructs a {@code MouseHandler}.
+         */
+        protected MouseHandler() {}
+
         /**
          * Starts the dragging session by creating the appropriate instance
          * of DragController.
@@ -955,6 +960,11 @@ protected int positionForMouseEvent(MouseEvent e) {
      */
     protected class DividerLayout implements LayoutManager
     {
+        /**
+         * Constructs a {@code DividerLayout}.
+         */
+        protected DividerLayout() {}
+
         public void layoutContainer(Container c) {
             if (leftButton != null && rightButton != null &&
                 c == BasicSplitPaneDivider.this) {
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneUI.java
index 643c5419f74..24b2fa873f1 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneUI.java
@@ -714,6 +714,11 @@ int getKeyboardMoveIncrement() {
      */
     public class PropertyHandler implements PropertyChangeListener
     {
+        /**
+         * Constructs a {@code PropertyHandler}.
+         */
+        public PropertyHandler() {}
+
         // NOTE: This class exists only for backward compatibility. All
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
@@ -766,6 +771,11 @@ public void focusLost(FocusEvent ev) {
      */
     public class KeyboardUpLeftHandler implements ActionListener
     {
+        /**
+         * Constructs a {@code KeyboardUpLeftHandler}.
+         */
+        public KeyboardUpLeftHandler() {}
+
         public void actionPerformed(ActionEvent ev) {
             if (dividerKeyboardResize) {
                 splitPane.setDividerLocation(Math.max(0,getDividerLocation
@@ -861,6 +871,11 @@ public void actionPerformed(ActionEvent ev) {
      */
     public class KeyboardResizeToggleHandler implements ActionListener
     {
+        /**
+         * Constructs a {@code KeyboardResizeToggleHandler}.
+         */
+        public KeyboardResizeToggleHandler() {}
+
         public void actionPerformed(ActionEvent ev) {
             if (!dividerKeyboardResize) {
                 splitPane.requestFocus();
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTabbedPaneUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTabbedPaneUI.java
index a81e3f06a83..8446354fe14 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTabbedPaneUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTabbedPaneUI.java
@@ -210,6 +210,11 @@

 // UI creation

+    /**
+     * Constructs a {@code BasicTabbedPaneUI}.
+     */
+    public BasicTabbedPaneUI() {}
+
     /**
      * Create a UI.
      * @param c a component
@@ -2657,6 +2662,10 @@ else if (key == SCROLL_BACKWARD) {
      * Instantiate it only within subclasses of BasicTabbedPaneUI.
      */
     public class TabbedPaneLayout implements LayoutManager {
+        /**
+         * Constructs a {@code TabbedPaneLayout}.
+         */
+        public TabbedPaneLayout() {}

         public void addLayoutComponent(String name, Component comp) {}

@@ -4195,6 +4204,11 @@ public void componentRemoved(ContainerEvent e) {
      * Instantiate it only within subclasses of BasicTabbedPaneUI.
      */
     public class PropertyChangeHandler implements PropertyChangeListener {
+        /**
+         * Constructs a {@code PropertyChangeHandler}.
+         */
+        public PropertyChangeHandler() {}
+
         // NOTE: This class exists only for backward compatibility. All
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
@@ -4209,6 +4223,11 @@ public void propertyChange(PropertyChangeEvent e) {
      * Instantiate it only within subclasses of BasicTabbedPaneUI.
      */
     public class TabSelectionHandler implements ChangeListener {
+        /**
+         * Constructs a {@code TabSelectionHandler}.
+         */
+        public TabSelectionHandler() {}
+
         // NOTE: This class exists only for backward compatibility. All
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
@@ -4223,6 +4242,11 @@ public void stateChanged(ChangeEvent e) {
      * Instantiate it only within subclasses of BasicTabbedPaneUI.
      */
     public class MouseHandler extends MouseAdapter {
+        /**
+         * Constructs a {@code MouseHandler}.
+         */
+        public MouseHandler() {}
+
         // NOTE: This class exists only for backward compatibility. All
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
@@ -4241,6 +4265,11 @@ public void mousePressed(MouseEvent e) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code FocusHandler}.
+         */
+        public FocusHandler() {}
+
         public void focusGained(FocusEvent e) {
             getHandler().focusGained(e);
         }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableHeaderUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableHeaderUI.java
index a02d25f293b..721fcbda9b7 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableHeaderUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableHeaderUI.java
@@ -70,6 +70,11 @@
     // The column that should be highlighted when the table header has the focus.
     private int selectedColumnIndex = 0; // Read ONLY via getSelectedColumnIndex!

+    /**
+     * Constructs a {@code BasicTableHeaderUI}.
+     */
+    public BasicTableHeaderUI() {}
+
     private static FocusListener focusListener = new FocusListener() {
         public void focusGained(FocusEvent e) {
             repaintHeader(e.getSource());
@@ -104,6 +109,11 @@ private void repaintHeader(Object source) {
         private int mouseXOffset;
         private Cursor otherCursor = resizeCursor;

+        /**
+         * Constructs a {@code MouseInputHandler}.
+         */
+        public MouseInputHandler() {}
+
         public void mouseClicked(MouseEvent e) {
             if (!header.isEnabled()) {
                 return;
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java
index d38de7e51c0..2ee4f1fa26d 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java
@@ -96,6 +96,11 @@
      */
     private boolean isFileList = false;

+    /**
+     * Constructs a {@code BasicTableUI}.
+     */
+    public BasicTableUI() {}
+
 //
 //  Helper class for keyboard actions
 //
@@ -760,6 +765,11 @@ public boolean accept(Object sender) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code KeyHandler}.
+         */
+        public KeyHandler() {}
+
         public void keyPressed(KeyEvent e) {
             getHandler().keyPressed(e);
         }
@@ -786,6 +796,11 @@ public void keyTyped(KeyEvent e) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code FocusHandler}.
+         */
+        public FocusHandler() {}
+
         public void focusGained(FocusEvent e) {
             getHandler().focusGained(e);
         }
@@ -808,6 +823,11 @@ public void focusLost(FocusEvent e) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code MouseInputHandler}.
+         */
+        public MouseInputHandler() {}
+
         public void mouseClicked(MouseEvent e) {
             getHandler().mouseClicked(e);
         }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTextUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTextUI.java
index b52d365dd76..88decfc241a 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTextUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTextUI.java
@@ -1371,12 +1371,22 @@ public View create(Element elem, int p0, int p1) {
     /**
      * Default implementation of the interface {@code Caret}.
      */
-    public static class BasicCaret extends DefaultCaret implements UIResource {}
+    public static class BasicCaret extends DefaultCaret implements UIResource {
+        /**
+         * Constructs a {@code BasicCaret}.
+         */
+        public BasicCaret() {}
+    }

     /**
      * Default implementation of the interface {@code Highlighter}.
      */
-    public static class BasicHighlighter extends DefaultHighlighter implements UIResource {}
+    public static class BasicHighlighter extends DefaultHighlighter implements UIResource {
+        /**
+         * Constructs a {@code BasicHighlighter}.
+         */
+        public BasicHighlighter() {}
+    }

     static class BasicCursor extends Cursor implements UIResource {
         BasicCursor(int type) {
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToggleButtonUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToggleButtonUI.java
index 605a86ed088..bbe35ec526d 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToggleButtonUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToggleButtonUI.java
@@ -52,6 +52,11 @@
     //          Create PLAF
     // ********************************

+    /**
+     * Constructs a {@code BasicToggleButtonUI}.
+     */
+    public BasicToggleButtonUI() {}
+
     /**
      * Returns an instance of {@code BasicToggleButtonUI}.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarSeparatorUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarSeparatorUI.java
index 4a5dd209df0..d26cec557aa 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarSeparatorUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarSeparatorUI.java
@@ -45,6 +45,11 @@

 public class BasicToolBarSeparatorUI extends BasicSeparatorUI
 {
+    /**
+     * Constructs a {@code BasicToolBarSeparatorUI}.
+     */
+    public BasicToolBarSeparatorUI() {}
+
     /**
      * Returns a new instance of {@code BasicToolBarSeparatorUI}.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarUI.java
index 3f5dad6dba9..480588eba2d 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicToolBarUI.java
@@ -166,6 +166,11 @@

     private static String FOCUSED_COMP_INDEX = "JToolBar.focusedCompIndex";

+    /**
+     * Constructs a {@code BasicToolBarUI}.
+     */
+    public BasicToolBarUI() {}
+
     /**
      * Constructs a new instance of {@code BasicToolBarUI}.
      *
@@ -1408,6 +1413,11 @@ public void propertyChange(PropertyChangeEvent evt) {
      * The class listens for window events.
      */
     protected class FrameListener extends WindowAdapter {
+        /**
+         * Constructs a {@code FrameListener}.
+         */
+        protected FrameListener() {}
+
         public void windowClosing(WindowEvent w) {
             if (toolBar.isFloatable()) {
                 if (dragWindow != null)
@@ -1450,6 +1460,11 @@ public void windowClosing(WindowEvent w) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code ToolBarContListener}.
+         */
+        protected ToolBarContListener() {}
+
         public void componentAdded( ContainerEvent e )  {
             getHandler().componentAdded(e);
         }
@@ -1468,6 +1483,11 @@ public void componentRemoved( ContainerEvent e ) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code ToolBarFocusListener}.
+         */
+        protected ToolBarFocusListener() {}
+
         public void focusGained( FocusEvent e ) {
             getHandler().focusGained(e);
             }
@@ -1485,6 +1505,11 @@ public void focusLost( FocusEvent e ) {
         // its functionality has been moved into Handler. If you need to add
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.
+        /**
+         * Constructs a {@code PropertyListener}.
+         */
+        protected PropertyListener() {}
+
         public void propertyChange( PropertyChangeEvent e ) {
             getHandler().propertyChange(e);
             }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java
index 3ff0fa34bc2..6d1d85df643 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java
@@ -2904,6 +2904,11 @@ private void repaintPath(TreePath path) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code TreeExpansionHandler}.
+         */
+        public TreeExpansionHandler() {}
+
         /**
          * Called whenever an item in the tree has been expanded.
          */
@@ -2931,6 +2936,11 @@ public void treeCollapsed(TreeExpansionEvent event) {
         /** ScrollBar that is being adjusted. */
         protected JScrollBar           scrollBar;

+        /**
+         * Constructs a {@code ComponentHandler}.
+         */
+        public ComponentHandler() {}
+
         public void componentMoved(ComponentEvent e) {
             if(timer == null) {
                 JScrollPane   scrollPane = getScrollPane();
@@ -3008,6 +3018,11 @@ public void actionPerformed(ActionEvent ae) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code TreeModelHandler}.
+         */
+        public TreeModelHandler() {}
+
         public void treeNodesChanged(TreeModelEvent e) {
             getHandler().treeNodesChanged(e);
         }
@@ -3037,6 +3052,11 @@ public void treeStructureChanged(TreeModelEvent e) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code TreeSelectionHandler}.
+         */
+        public TreeSelectionHandler() {}
+
         /**
          * Messaged when the selection changes in the tree we're displaying
          * for.  Stops editing, messages super and displays the changed paths.
@@ -3058,6 +3078,11 @@ public void valueChanged(TreeSelectionEvent event) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code CellEditorHandler}.
+         */
+        public CellEditorHandler() {}
+
         /** Messaged when editing has stopped in the tree. */
         public void editingStopped(ChangeEvent e) {
             getHandler().editingStopped(e);
@@ -3091,6 +3116,11 @@ public void editingCanceled(ChangeEvent e) {
         /** Set to true while keyPressed is active. */
         protected boolean            isKeyDown;

+        /**
+         * Constructs a {@code KeyHandler}.
+         */
+        public KeyHandler() {}
+
         /**
          * Invoked when a key has been typed.
          *
@@ -3123,6 +3153,11 @@ public void keyReleased(KeyEvent e) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code FocusHandler}.
+         */
+        public FocusHandler() {}
+
         /**
          * Invoked when focus is activated on the tree we're in, redraws the
          * lead row.
@@ -3149,6 +3184,11 @@ public void focusLost(FocusEvent e) {
     // This returns locations that don't include any Insets.
     public class NodeDimensionsHandler extends
                  AbstractLayoutCache.NodeDimensions {
+        /**
+         * Constructs a {@code NodeDimensionsHandler}.
+         */
+        public NodeDimensionsHandler() {}
+
         /**
          * Responsible for getting the size of a particular node.
          */
@@ -3229,6 +3269,11 @@ protected int getRowX(int row, int depth) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code MouseHandler}.
+         */
+        public MouseHandler() {}
+
         /**
          * Invoked when a mouse button has been pressed on a component.
          */
@@ -3267,6 +3312,11 @@ public void mouseReleased(MouseEvent e) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code PropertyChangeHandler}.
+         */
+        public PropertyChangeHandler() {}
+
         public void propertyChange(PropertyChangeEvent event) {
             getHandler().propertyChange(event);
         }
@@ -3285,6 +3335,11 @@ public void propertyChange(PropertyChangeEvent event) {
         // new functionality add it to the Handler, but make sure this
         // class calls into the Handler.

+        /**
+         * Constructs a {@code SelectionModelPropertyChangeHandler}.
+         */
+        public SelectionModelPropertyChangeHandler() {}
+
         public void propertyChange(PropertyChangeEvent event) {
             getHandler().propertyChange(event);
         }
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicViewportUI.java b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicViewportUI.java
index 3620bdbcff8..6326d2ea957 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicViewportUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicViewportUI.java
@@ -43,6 +43,11 @@
     // Shared UI object
     private static ViewportUI viewportUI;

+    /**
+     * Constructs a {@code BasicViewportUI}.
+     */
+    public BasicViewportUI() {}
+
     /**
      * Returns an instance of {@code BasicViewportUI}.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalFileChooserUI.java b/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalFileChooserUI.java
index f4c418fa948..895379c1864 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalFileChooserUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalFileChooserUI.java
@@ -586,6 +586,10 @@ public  SingleClickListener(JList<?> list) {
     @Deprecated(since = "9")
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class FileRenderer extends DefaultListCellRenderer  {
+        /**
+         * Constructs a {@code FileRenderer}.
+         */
+        protected FileRenderer() {}
     }

     public void uninstallUI(JComponent c) {
diff --git a/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalSliderUI.java b/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalSliderUI.java
index bd1d2e6b41b..d79bfee81b7 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalSliderUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalSliderUI.java
@@ -180,6 +180,11 @@ protected PropertyChangeListener createPropertyChangeListener( JSlider slider )
      * {@code PropertyListener} for {@code JSlider.isFilled}.
      */
     protected class MetalPropertyListener extends BasicSliderUI.PropertyChangeHandler {
+        /**
+         * Constructs a {@code MetalPropertyListener}.
+         */
+        protected MetalPropertyListener() {}
+
         public void propertyChange( PropertyChangeEvent e ) {  // listen for slider fill
             super.propertyChange( e );

diff --git a/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalToolBarUI.java b/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalToolBarUI.java
index 15c9fd8eb13..1f89cd88ec0 100644
--- a/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalToolBarUI.java
+++ b/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalToolBarUI.java
@@ -85,6 +85,11 @@
      */
     private JMenuBar lastMenuBar;

+    /**
+     * Constructs a {@code MetalToolBarUI}.
+     */
+    public MetalToolBarUI() {}
+
     /**
      * Registers the specified component.
      */
@@ -361,13 +366,23 @@ private void setLastMenuBar(JMenuBar lastMenuBar) {
      * No longer used. The class cannot be removed for compatibility reasons.
      */
     protected class MetalContainerListener
-        extends BasicToolBarUI.ToolBarContListener {}
+        extends BasicToolBarUI.ToolBarContListener {
+        /**
+         * Constructs a {@code MetalContainerListener}.
+         */
+        protected MetalContainerListener() {}
+    }

     /**
      * No longer used. The class cannot be removed for compatibility reasons.
      */
     protected class MetalRolloverListener
-        extends BasicToolBarUI.PropertyListener {}
+        extends BasicToolBarUI.PropertyListener {
+        /**
+         * Constructs a {@code MetalRolloverListener}.
+         */
+        protected MetalRolloverListener() {}
+    }

     /**
      * {@code DockingListener} for {@code MetalToolBarUI}.