Name: skT88420 Date: 07/14/99


JWindow should be an alternative to JFrame for frameless window
applications.
Since jdk1.1.7 (include jdk1.2.2), the behavior of JTextField's
in a JWindow or a Window has become strange: The JTextField does
not obtain the standard focus caret (the blinked slash) on
mouse clicks on it. Only after a switch to another window, it
obtains the focus caret. However, there can be more than one
focus carets on a single JWindow, if more than one such
switches are done.

This behavior is not observed with jdk1.1.5 or jdk1.1.6 with
swing1.0.3.

If one uses TextField instead of JTextField, then everything is
normal.

The following is the source code the demonstrate the behavior:

--------------------------------------------

import javax.swing.*;
import java.awt.*;

public class FocusTest
{
    public static void textFieldinWindow()
    {
        JWindow window = new JWindow();
        Container c = window.getContentPane();
        c.setLayout(null);
        window.setSize(300,200);
        window.setLocation(100, 100);
        JTextField field1 = new JTextField("strange bahavior");
        JTextField field2 = new JTextField("strange bahavior");
        c.add(field1);
        c.add(field2);
        field1.setBounds(20, 40, 100, 30);
        field2.setBounds(20, 100, 100, 30);
        
        window.setVisible(true);
    }

    // Thie method is used only for purpose of comparison
    public static void textFieldinFrame()
    {
        JFrame frame = new JFrame();
        Container c = frame.getContentPane();
        c.setLayout(null);
        frame.setSize(300,200);
        frame.setLocation(500, 100);
        JTextField field1 = new JTextField("correct behavior");
        JTextField field2 = new JTextField("correct behavior");
        c.add(field1);
        c.add(field2);
        field1.setBounds(20, 40, 100, 30);
        field2.setBounds(20, 100, 100, 30);
        
        frame.setVisible(true);
    }
    
    public static void main(String[] arg)
    {
        textFieldinWindow();
        textFieldinFrame(); // used for comparison only
    }
}

------------------------------------------------------

Compile information:

>java -version
java version "1.2.2"
Classic VM (build JDK-1.2.2-W, native threads, symcjit)

>java -fullversion
java full version "JDK-1.2.2-W"
(Review ID: 85573)
======================================================================

Name: skT88420 Date: 07/14/99


JWindow should be an alternative to JFrame for frameless window
applications.
Since jdk1.1.7 (include jdk1.2.2), the behavior of JTextField's
in a JWindow or a Window has become strange: The JTextField does
not obtain the standard focus caret (the blinked slash) on
mouse clicks on it. Only after a switch to another window, it
obtains the focus caret. However, there can be more than one
focus carets on a single JWindow, if more than one such
switches are done.

This behavior is not observed with jdk1.1.5 or jdk1.1.6 with
swing1.0.3.

If one uses TextField instead of JTextField, then everything is
normal.

The following is the source code the demonstrate the behavior:

--------------------------------------------

import javax.swing.*;
import java.awt.*;

public class FocusTest
{
    public static void textFieldinWindow()
    {
        JWindow window = new JWindow();
        Container c = window.getContentPane();
        c.setLayout(null);
        window.setSize(300,200);
        window.setLocation(100, 100);
        JTextField field1 = new JTextField("strange bahavior");
        JTextField field2 = new JTextField("strange bahavior");
        c.add(field1);
        c.add(field2);
        field1.setBounds(20, 40, 100, 30);
        field2.setBounds(20, 100, 100, 30);
        
        window.setVisible(true);
    }

    // Thie method is used only for purpose of comparison
    public static void textFieldinFrame()
    {
        JFrame frame = new JFrame();
        Container c = frame.getContentPane();
        c.setLayout(null);
        frame.setSize(300,200);
        frame.setLocation(500, 100);
        JTextField field1 = new JTextField("correct behavior");
        JTextField field2 = new JTextField("correct behavior");
        c.add(field1);
        c.add(field2);
        field1.setBounds(20, 40, 100, 30);
        field2.setBounds(20, 100, 100, 30);
        
        frame.setVisible(true);
    }
    
    public static void main(String[] arg)
    {
        textFieldinWindow();
        textFieldinFrame(); // used for comparison only
    }
}

------------------------------------------------------

Compile information:

>java -version
java version "1.2.2"
Classic VM (build JDK-1.2.2-W, native threads, symcjit)

>java -fullversion
java full version "JDK-1.2.2-W"
(Review ID: 85574)
======================================================================