Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta_refresh-b70)
Java HotSpot(TM) Client VM (build 1.4.0-beta_refresh-b70, mixed mode)

There seems to be some rendering glitches when you try to select
an item from an editable combo box CellEditor in a table. This
appears to be a repaint problem such that only a portion of the
editable component is painted - just surounding the cursor

This bug was introduced in the b70 build (not in b69).

To reproduce using the following test case, select an item
from the second column so that it appears in the table cell.
Click in the *middle* of the cell that was just selected.
You will notice that the editable portion of the cell is
not completely drawn correctly.

This bug may have been introduced as a result of the fix to 4379476 or
4460382.

-----------------------------
import java.awt.*;

import javax.swing.*;
import javax.swing.table.*;

public class ComboEditorTest extends JFrame {
    
        // fill in table values
    public static String[] colNames = {
            "no.", "methode", "id 1", "id2", "sample weight", "unit"
        };
    public static Object[][] data = {
             {
                new Integer(1), "chlorid", "123456789012345678901234",
                "4711 - 0815", new Float(7.2348), "g"
            }, {
                new Integer(2), "chlorid", "123456789012345678901234",
                "4711 - 0815", new Float(7.2348), "g"
            }, {
                new Integer(3), "chlorid", "123456789012345678901234",
                "4711 - 0815", new Float(7.2348), "g"
            }
        };

    public static String[] comboData = {
"chlorid", "HCl", "water", "NaCl", "crystall water", "anything" };

    public ComboEditorTest() {
        JTable table = new JTable(data, colNames);

        JScrollPane scrollPane = new JScrollPane(table);
        scrollPane.setPreferredSize(new Dimension(450, 100));
        getContentPane().add(scrollPane);

        // use a combo box as cell renderer for the 2nd column
        JComboBox cb = new JComboBox(comboData);
        cb.setEditable(true);
        TableColumn col = table.getColumnModel().getColumn(1);

        col.setCellEditor(new DefaultCellEditor(cb));

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        ComboEditorTest test = new ComboEditorTest();
        test.pack();
        test.setVisible(true);
    }

}