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diff --git a/libjava/classpath/javax/swing/plaf/metal/MetalTreeUI.java b/libjava/classpath/javax/swing/plaf/metal/MetalTreeUI.java
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+/* MetalTreeUI.java
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing.plaf.metal;
+
+import java.awt.Graphics;
+import java.awt.Insets;
+import java.awt.Rectangle;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+
+import javax.swing.JComponent;
+import javax.swing.JTree;
+import javax.swing.UIManager;
+import javax.swing.tree.TreePath;
+import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.basic.BasicTreeUI;
+
+/**
+ * A UI delegate for the {@link JTree} component.
+ */
+public class MetalTreeUI extends BasicTreeUI
+{
+  /**
+   * Listens for property changes of the line style and updates the
+   * internal setting.
+   */
+  private class LineStyleListener
+    implements PropertyChangeListener
+  {
+
+    public void propertyChange(PropertyChangeEvent e)
+    {
+      if (e.getPropertyName().equals(LINE_STYLE_PROPERTY))
+        decodeLineStyle(e.getNewValue());
+    }
+
+  }
+
+  /**
+   * The key to the lineStyle client property.
+   */
+  private static final String LINE_STYLE_PROPERTY = "JTree.lineStyle";
+
+  /**
+   * The property value indicating no line style.
+   */
+  private static final String LINE_STYLE_VALUE_NONE = "None";
+
+  /**
+   * The property value indicating angled line style.
+   */
+  private static final String LINE_STYLE_VALUE_ANGLED = "Angled";
+
+  /**
+   * The property value indicating horizontal line style.
+   */
+  private static final String LINE_STYLE_VALUE_HORIZONTAL = "Horizontal";
+
+  /**
+   * The line style for None.
+   */
+  private static final int LINE_STYLE_NONE = 0;
+
+  /**
+   * The line style for Angled.
+   */
+  private static final int LINE_STYLE_ANGLED = 1;
+
+  /**
+   * The line style for Horizontal.
+   */
+  private static final int LINE_STYLE_HORIZONTAL = 2;
+
+  /**
+   * The current line style.
+   */
+  private int lineStyle;
+
+  /**
+   * Listens for changes on the line style property and updates the
+   * internal settings.
+   */
+  private PropertyChangeListener lineStyleListener;
+
+  /**
+   * Constructs a new instance of <code>MetalTreeUI</code>.
+   */
+  public MetalTreeUI()
+  {
+    super();
+  }
+
+  /**
+   * Returns a new instance of <code>MetalTreeUI</code>.
+   *
+   * @param component the component for which we return an UI instance
+   *
+   * @return A new instance of <code>MetalTreeUI</code>.
+   */
+  public static ComponentUI createUI(JComponent component)
+  {
+    return new MetalTreeUI();
+  }
+
+  /**
+   * The horizontal element of legs between nodes starts at the right of the
+   * left-hand side of the child node by default. This method makes the
+   * leg end before that.
+   */
+  protected int getHorizontalLegBuffer()
+  {
+    return super.getHorizontalLegBuffer();
+  }
+
+  /**
+   * Configures the specified component appropriate for the look and feel.
+   * This method is invoked when the ComponentUI instance is being installed
+   * as the UI delegate on the specified component. This method should completely
+   * configure the component for the look and feel, including the following:
+   * 1. Install any default property values for color, fonts, borders, icons,
+   *    opacity, etc. on the component. Whenever possible, property values
+   *    initialized by the client program should not be overridden.
+   * 2. Install a LayoutManager on the component if necessary.
+   * 3. Create/add any required sub-components to the component.
+   * 4. Create/install event listeners on the component.
+   * 5. Create/install a PropertyChangeListener on the component in order
+   *    to detect and respond to component property changes appropriately.
+   * 6. Install keyboard UI (mnemonics, traversal, etc.) on the component.
+   * 7. Initialize any appropriate instance data.
+   */
+  public void installUI(JComponent c)
+  {
+    super.installUI(c);
+
+    Object lineStyleProp = c.getClientProperty(LINE_STYLE_PROPERTY);
+    decodeLineStyle(lineStyleProp);
+    if (lineStyleListener == null)
+      lineStyleListener = new LineStyleListener();
+    c.addPropertyChangeListener(lineStyleListener);
+  }
+
+  /**
+   * Reverses configuration which was done on the specified component during
+   * installUI. This method is invoked when this UIComponent instance is being
+   * removed as the UI delegate for the specified component. This method should
+   * undo the configuration performed in installUI, being careful to leave the
+   * JComponent instance in a clean state (no extraneous listeners,
+   * look-and-feel-specific property objects, etc.). This should include
+   * the following:
+   * 1. Remove any UI-set borders from the component.
+   * 2. Remove any UI-set layout managers on the component.
+   * 3. Remove any UI-added sub-components from the component.
+   * 4. Remove any UI-added event/property listeners from the component.
+   * 5. Remove any UI-installed keyboard UI from the component.
+   * 6. Nullify any allocated instance data objects to allow for GC.
+   */
+  public void uninstallUI(JComponent c)
+  {
+    super.uninstallUI(c);
+    if (lineStyleListener != null)
+      c.removePropertyChangeListener(lineStyleListener);
+    lineStyleListener = null;
+  }
+
+  /**
+   * This function converts between the string passed into the client
+   * property and the internal representation (currently an int).
+   *
+   * @param lineStyleFlag - String representation
+   */
+  protected void decodeLineStyle(Object lineStyleFlag)
+  {
+    if (lineStyleFlag == null || lineStyleFlag.equals(LINE_STYLE_VALUE_ANGLED))
+      lineStyle = LINE_STYLE_ANGLED;
+    else if (lineStyleFlag.equals(LINE_STYLE_VALUE_HORIZONTAL))
+      lineStyle = LINE_STYLE_HORIZONTAL;
+    else if (lineStyleFlag.equals(LINE_STYLE_VALUE_NONE))
+      lineStyle = LINE_STYLE_NONE;
+    else
+      lineStyle = LINE_STYLE_ANGLED;
+  }
+
+  /**
+   * Checks if the location is in expand control.
+   *
+   * @param row - current row
+   * @param rowLevel - current level
+   * @param mouseX - current x location of the mouse click
+   * @param mouseY - current y location of the mouse click
+   */
+  protected boolean isLocationInExpandControl(int row, int rowLevel,
+                                          int mouseX, int mouseY)
+  {
+    return super.isLocationInExpandControl(tree.getPathForRow(row),
+                                           mouseX, mouseY);
+  }
+
+  /**
+   * Paints the specified component appropriate for the look and feel.
+   * This method is invoked from the ComponentUI.update method when the
+   * specified component is being painted. Subclasses should override this
+   * method and use the specified Graphics object to render the content of
+   * the component.
+   *
+   * @param g - the current graphics configuration.
+   * @param c - the current component to draw
+   */
+  public void paint(Graphics g, JComponent c)
+  {
+    // Calls BasicTreeUI's paint since it takes care of painting all
+    // types of icons.
+    super.paint(g, c);
+
+    if (lineStyle == LINE_STYLE_HORIZONTAL)
+      paintHorizontalSeparators(g, c);
+  }
+
+  /**
+   * Paints the horizontal separators.
+   *
+   * @param g - the current graphics configuration.
+   * @param c - the current component to draw
+   */
+  protected void paintHorizontalSeparators(Graphics g, JComponent c)
+  {
+    g.setColor(UIManager.getColor("Tree.line"));
+    Rectangle clip = g.getClipBounds();
+    int row0 = getRowForPath(tree, getClosestPathForLocation(tree, 0, clip.y));
+    int row1 =
+      getRowForPath(tree, getClosestPathForLocation(tree, 0,
+                                                    clip.y + clip.height - 1));
+    if (row0 >= 0 && row1 >= 0)
+      {
+        for (int i = row0; i <= row1; i++)
+          {
+            TreePath p = getPathForRow(tree, i);
+            if (p != null && p.getPathCount() == 2)
+              {
+                Rectangle r = getPathBounds(tree, getPathForRow(tree, i));
+                if (r != null)
+                  {
+                    g.drawLine(clip.x, r.y, clip.x + clip.width, r.y);
+                  }
+              }
+          }
+      }
+  }
+
+
+  /**
+   * Paints the vertical part of the leg. The receiver should NOT modify
+   * clipBounds, insets.
+   *
+   * @param g - the current graphics configuration.
+   * @param clipBounds -
+   * @param insets -
+   * @param path - the current path
+   */
+  protected void paintVerticalPartOfLeg(Graphics g, Rectangle clipBounds,
+                                    Insets insets, TreePath path)
+  {
+    if (lineStyle == LINE_STYLE_ANGLED)
+      super.paintVerticalPartOfLeg(g, clipBounds, insets, path);
+  }
+
+  /**
+   * Paints the horizontal part of the leg. The receiver should NOT \
+   * modify clipBounds, or insets.
+   * NOTE: parentRow can be -1 if the root is not visible.
+   */
+  protected void paintHorizontalPartOfLeg(Graphics g, Rectangle clipBounds,
+                                        Insets insets, Rectangle bounds,
+                                        TreePath path, int row,
+                                        boolean isExpanded, boolean hasBeenExpanded,
+                                        boolean isLeaf)
+  {
+    if (lineStyle == LINE_STYLE_ANGLED)
+      super.paintHorizontalPartOfLeg(g, clipBounds, insets, bounds, path, row,
+                                     isExpanded, hasBeenExpanded, isLeaf);
+  }
+}