THIS BUG REPORT IS FILED SOLELY TO SUPPORT AN ESCALATION.

In the example below, attempting to drag and drop a label onto a text field
causes the application to hang in 1.2.2-004. The same code works fine with
1.3, build R., and with the 1.2.2 Solaris reference JDK.

A similar problem was reported in bug #4269666 and fixed for Kestrel.

import java.util.*;
import java.io.*;
import java.net.*;
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.datatransfer.*;
import java.awt.dnd.*;
import javax.swing.*;
import javax.swing.event.*;


public class TestBed
{
protected JFrame m_frame;


public static void main(String args[])
{
new TestBed().run();
}

public TestBed()
{
m_frame = new JFrame("TestBed");
m_frame.addWindowListener(new AppWindowListener());
m_frame.setLocation(100, 100);
m_frame.setSize(200, 200);
m_frame.getContentPane().add(new DragLabel("Hey! Drag me!"), BorderLayout.NORTH);
m_frame.getContentPane().add(new DropText(), BorderLayout.SOUTH);
}

public void run()
{
m_frame.show();
}

public class DragLabel extends JLabel implements DragGestureListener, DragSourceListener
{
protected DragSource m_dragSource;
protected DragGestureRecognizer m_dragGestureRecognizer;


public DragLabel(String text)
{
super(text);
m_dragSource = DragSource.getDefaultDragSource();
m_dragGestureRecognizer = m_dragSource.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY_OR_MOVE, this);
}

public void dragGestureRecognized(DragGestureEvent evt)
{
evt.startDrag(null, new StringSelection(getText()), this);
}

public void dragDropEnd(DragSourceDropEvent evt)
{
}

public void dragEnter(DragSourceDragEvent evt)
{
}

public void dragExit(DragSourceEvent evt)
{
}

public void dragOver(DragSourceDragEvent evt)
{
}

public void dropActionChanged(DragSourceDragEvent evt)
{
}
}

public class DropText extends JTextField implements DropTargetListener
{
protected DropTarget m_dropTarget;


public DropText()
{
super();
m_dropTarget = new DropTarget(this, this);
}

public void dragEnter(DropTargetDragEvent evt)
{
evt.acceptDrag(evt.getDropAction());
}

public void dragExit(DropTargetEvent evt)
{
}

public void dragOver(DropTargetDragEvent evt)
{
evt.acceptDrag(evt.getDropAction());
}

public void drop(DropTargetDropEvent evt)
{
Transferable transferable;
String text;


evt.acceptDrop(evt.getDropAction());
transferable = evt.getTransferable();
try
{
text = (String)transferable.getTransferData(DataFlavor.stringFlavor);
setText(text);
evt.dropComplete(true);

// This example was taken from bug #4261459.
//
// In this case the next line causes a hang in the following java versions
//
//java version "1.2.2"
//Classic VM (build JDK-1.2.2-003, native threads, symcjit)
//
//java version "1.3beta"
//Java(TM) 2 Runtime Environment, Standard Edition (build 1.3beta-O)
//Java(TM) HotSpot Client VM (build 1.3beta-O, mixed mode)
//
 
JOptionPane.showMessageDialog(m_frame, "Drop: " + getText(), "Drop!", JOptionPane.INFORMATION_MESSAGE);

}
catch (UnsupportedFlavorException e)
{
evt.dropComplete(false);
}
catch (IOException e)
{
evt.dropComplete(false);
}
}

public void dropActionChanged(DropTargetDragEvent evt)
{
evt.acceptDrag(evt.getDropAction());
}
}

public class AppWindowListener extends WindowAdapter
{
public void windowClosing(WindowEvent evt)
{
m_frame.dispose();
System.exit(0);
}
}


}