J2SE Version (please include all output from java -version flag):
 java version "1.6.0-beta2"
 Java(TM) SE Runtime Environment (build 1.6.0-beta2-b75)
 Java HotSpot(TM) Client VM (build 1.6.0-beta2-b75, mixed mode, sharing)

Does this problem occur on J2SE 1.4.x or 5.0.x ? Yes / No (pick one)
 Yes

Operating System Configuration Information (be specific):
 Microsoft Windows 2000 [Version 5.00.2195]

Hardware Configuration Information (be specific):
 Pentium 4

Bug Description:
  SplitPane with Border does not close divider properly
  When a SplitPane has a border and one attempts to close it to the
  bottom, it only goes as far down as it's top inset (it should go to it's
  bottom inset)

  - Run the code
  - Press the down arrow on the divider

import static javax.swing.JFrame.*;
import static javax.swing.JSplitPane.*;
import javax.swing.*;

public class Test {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    JSplitPane splitPane = new JSplitPane(VERTICAL_SPLIT, new
JLabel("One"), new JLabel("Two"));
    splitPane.setDividerLocation(250);
    splitPane.setBorder(BorderFactory.createTitledBorder("Test"));
    splitPane.setOneTouchExpandable(true);
    frame.add(splitPane);
    frame.setSize(500, 500);
    frame.setVisible(true);
    frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
  }
}