SWT中滚动条的奇怪行为

Question

我试图将一些控件放到SWT上并且它们很奇怪：

http://youtu.be/gnHt6MBiXBk

即。表的大小比窗口大小长得多，因此底部滚动条末端无法访问。如果mose hovere在它上面，滚动条也会奇怪地闪烁。

为什么？

整个代码：

package tests.Try_SWT_02;



import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;

/**
 * Hello world!
 *
 */
public class App01 
{
    public static void main( String[] args )
    {
        GridLayout gridLayout;

        Display display = new Display ();
        Shell shell = new Shell(display);

        gridLayout = new GridLayout(1, false); 
        shell.setLayout(gridLayout);

        /*
        Composite presetComposite = new Composite(shell, SWT.NONE);
        //presetComposite.setLayout(new FillLayout(SWT.HORIZONTAL));
        gridLayout = new GridLayout(2, false);
        presetComposite.setLayout(gridLayout);

        Label label = new Label(presetComposite, SWT.NONE);
        label.setText("Select a preset:");

        Combo combo = new Combo(presetComposite, SWT.READ_ONLY);
        combo.add("One");
        combo.add("Two");
        combo.add("Three");
        */

        Table table = new Table(shell, SWT.VIRTUAL | SWT.BORDER);

        TableColumn column;
        column = new TableColumn(table, SWT.NONE, 0);
        column.setText("Column 1");
        column.setWidth(50);
        column = new TableColumn(table, SWT.NONE, 1);
        column.setText("Column 2");
        column.setWidth(50);
        column = new TableColumn(table, SWT.NONE, 2);
        column.setText("Column 3");
        column.setWidth(50);

        int itemCount = 10000;

        TableItem item;
        int counter = 0;
        for(int i=0; i<itemCount; ++i) {
            item = new TableItem(table, SWT.NONE);
            item.setText(new String[] {Integer.toString(counter++), Integer.toString(counter++), Integer.toString(counter++)});
        }




        shell.pack();
        shell.open ();
        while (!shell.isDisposed ()) {
            if (!display.readAndDispatch ()) display.sleep ();
        }
        display.dispose ();
    }
}