DnD fails with JTextArea and JTextField

Sean Chou zhouyx at linux.vnet.ibm.com
Thu May 26 08:07:40 UTC 2011

Hi all,

    I have a testcase related to DnD failure with JTextArea and JTextField
on linux. The
testcase is as follows:

 * DnDTest.java
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JTextArea;
import javax.swing.JTextField;

public class DnDTest extends Frame {
Component c;
public DnDTest() {
super("Single Frame --- AWT Frame");
 // set layout here.
setLayout(new FlowLayout());
 c = new JTextArea("JTextArea component");
c.setPreferredSize(new Dimension(400, 100));
 c = new JTextField("JTextField component(No IM)");
c.setPreferredSize(new Dimension(400, 20));
 addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent event) {
setSize(850, 360);
 public static void main(String[] args) {
new DnDTest();

Reproduce steps:
1. Run the testcase with b143
2. Open a new file with gedit and input some words like "abcde"
3. Drag "abcde" into JTextField and drop it there.
4. Once more, drag "abcde" into JTextField and then move out of the Frame
(keep draging) and drag into JTextField again and drop it.

The second DnD inputs another "abcde" into JTextField.

The second DnD inputs nothing into JTextField.

The JTextArea as well has this problem, and in step 4, if we drag "abcde"
over JTextField and then drop into JTextArea, nothing
is input into JTextArea either. However, if "abcde" is drag into JTextField
or JTextArea directly or when JTextArea/Field are
empty as in step 2, it works.

Are there any comments? And can anyone file a bug for it please ?

Best Regards,
Sean Chou

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