Horizontally scrolling JT

  To: comp.lang.java.gui
I am unable to make my JTable/JScrollPane so that it gains horizontal
scrollbars when container width < JTable min width.

Any suggestions?

SSCCE
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import java.awt.BorderLayout;

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.TableColumn;

public class HorizScrollTable extends JPanel {

     HorizScrollTable() {
         setLayout(new BorderLayout());
         JTable table = new JTable(data, headings);
         // table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); // [1]
         for (int i = 0; i < headings.length; i++) {
             TableColumn column = table.getColumnModel().getColumn(i);
             int width = widths[i];
             column.setPreferredWidth(width);
             column.setMinWidth(width); // [2]
         }
         // JPanel p = new JPanel(new BorderLayout());
         // p.add(table, BorderLayout.CENTER); // [3]
         JScrollPane scrollPane = new JScrollPane(table);
         // scrollPane.setHorizontalScrollBar(new JScrollBar()); // [4]

         add(scrollPane, BorderLayout.CENTER);
     }

     String[] headings = new String[] { "Product Category", "Product",
             "Supplier", "Region", "Year", "Period", "Sales" };
     int[] widths = { 80, 100, 200, 120, 40, 80, 60 };
     Object[][] data = {
             { "Apples", "Granny Smith",
                     "The Freemantle apple collective",
                     "Northeast", 2007, "Quarter 2", 156.67 },
             { "Apples", "Granny Smith",
                     "The Freemantle apple collective",
                     "South", 2007, "Quarter 2", 1766.01 },
             { "Pears", "Concord", "John Williams and Sons",
                     "Northeast",
                     2007, "Quarter 2", 987.29 },
             { "Pears", "Conference", "Montpelier et fils",
                     "South", 2007,
                     "Quarter 2", 1221.16 } };

     private static void createAndShowGUI() {
         JFrame frame = new JFrame("Horizontally scrollable JTable");
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         JComponent newContentPane = new HorizScrollTable();
         newContentPane.setOpaque(true);
         frame.setContentPane(newContentPane);
         frame.pack();
         frame.setVisible(true);
     }

     public static void main(String[] args) {
         javax.swing.SwingUtilities.invokeLater(new Runnable() {
             public void run() {
                 createAndShowGUI();
             }
         });
     }

}
/*
  * Note 1: Causes horiz scroll bar when frame shrunk but
  * columns can't grow.
  * Note 2: Prevent columns shrinking too far when frame shrunk
  * using mouse
  * Note 3: H.Scrollbar :-) Height :-) No headings :-( Width :-(
  * Note 4: Has no effect.
  */
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