Name: rmT116609 Date: 08/21/2003


FULL PRODUCT VERSION :
java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-b28)
Java HotSpot(TM) Client VM (build 1.4.2-b28, mixed mode)



FULL OS VERSION :
Microsoft Windows 2000 [Version 5.00.2195]



A DESCRIPTION OF THE PROBLEM :
The length of the line separator (CR&LF on Windows) in a java.awt.TextArea
is NOT always equal to 1:

If a java.awt.TextArea is initialized with nothing (new TextArea()) or
with an empty String (new TextArea("")) on Windows and the user types
a Return or an Enter key, the resulting String has the length 2.

If a java.awt.TextArea is initialized with an empty String and a
LINE FEED (LF) control character (new TextArea(""+'/n')) on Windows
and the user first clears the TextArea and then types a Return or
an Enter key, the resulting String has the length 1.


It seems that java.awt.TextArea now handles Newlines
like javax.swing.JTextArea, see:
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/text/DefaultEditorKit.html
But when it is so, it should be documented and the resulting String
should display the correct length.

  See also the Evaluation of Bugs: 4800187, 4701398, 4302891





STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1.) Run the example program Text.java
2.) Click on the button "Clear All"
3.) Type the "Return" or "Enter" key in both TextAreas
4.) click on the button "Copy Text"
5.) See the output in th TextFields and on the console



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Both TextFields should display 2 characters.
Both Strings should have a length of 1.

This result can be reproduced in java-versions 1.1.8, 1.3.1 and 1.4.1


ACTUAL -
One TextField shows 2 characters the other shows 1.
One String has the length 2 and the other has the length 1.
   
This result can only be reproduced in java-version 1.4.2



REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.event.*;

public class Text implements ActionListener
{
  TextArea awtTextArea1 = null;
  TextArea awtTextArea2 = null;

  TextField awtTextField1 = null;
  TextField awtTextField2 = null;

  Button buttonClear = null;
  Button buttonCopy = null;
  
  public Text ()
  {
     Frame myFrame = new Frame();
     myFrame.setLayout( new GridLayout(0,2,3,3) );

     awtTextArea1 = new TextArea(2,15);
     awtTextArea2 = new TextArea(2,15);

     awtTextArea1.setText("String without LF");
     awtTextArea2.setText("String with"+'\n'+"LF");

     awtTextField1 = new TextField();
     awtTextField2 = new TextField();
     awtTextField1.setEditable(false);
     awtTextField2.setEditable(false);

     buttonClear = new Button("Clear All");
     buttonCopy = new Button("Copy Text");
     buttonClear.addActionListener(this);
     buttonCopy.addActionListener(this);

     myFrame.add(awtTextArea1);
     myFrame.add(awtTextArea2);
     myFrame.add(awtTextField1);
     myFrame.add(awtTextField2);

     myFrame.add(buttonClear);
     myFrame.add(buttonCopy);

     myFrame.pack();
     myFrame.show();
  }

  public void actionPerformed(ActionEvent e)
  {
    if (e.getActionCommand() == "Clear All")
     {
awtTextArea1.setText("");
awtTextArea2.setText("");
awtTextField1.setText("");
awtTextField2.setText("");
     }
    else
     {
String currentString1 = awtTextArea1.getText();
String currentString2 = awtTextArea2.getText();

System.out.println("Lenght of awtString1: "+currentString1.length());
System.out.println("Lenght of awtString2: "+currentString2.length());
System.out.println();

awtTextField1.setText(currentString1);
awtTextField2.setText(currentString2);
     }
  }

  public static void main( String args[] )
  {
     Text myText = new Text();
  }
}


---------- END SOURCE ----------
(Incident Review ID: 200002)
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