Word wrapping incorrect inside JTextPane on MAC 0.5/10.4 and Linux OS

Question

Hello java-dev team,
In my application, I am using JTextPane as a text editor to create RTF text. The problem I observed with the JTextPane on MAC OS and Linux OS flavors (I tested on Ubuntu 8.04) is: whenever I am changing any of the text property (font color, font name, font style like bold, italic or underline) and then enter the characters without providing space, the whole word gets wrapped to the next line from the point where exactly the property change starts i.e. the new formatted text is jumped to the next line from the starting point of formatting.
My requirement is, as I am not adding any space character while changing the property, the characters should be entered in the sequence and should come to new line as per normal word-wrap rule.
Can anybody help me out in this regards with some solution as it’s a very urgent requirement?
Below I am also providing the sample code to check the behavior. There is no dynamic facility to change the property in the below code but I am providing the text with multiple formatting settings through code itself. To reproduce the above issue, just type the characters using keyboard in between characters with changed text properties and you can see the whole word jumping to new line.
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
import javax.swing.text.StyledEditorKit;
public class TestWrapping {
     JScrollPane scroll;
     JTextPane edit;
     public TestWrapping()  throws Exception {
          final JFrame frame=new JFrame();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          edit=new JTextPane()
               public void setSize(Dimension d)
                    if (d.width < getParent().getSize().width)
                         d.width = getParent().getSize().width;
                    super.setSize(d);
               public boolean getScrollableTracksViewportWidth()
                    return false;
          edit.setPreferredSize(new Dimension(150,150));
          edit.setSize(150,150);
          edit.setEditorKit(new StyledEditorKit());
          scroll=new JScrollPane(edit);
          edit.getDocument().insertString(0,"11111111111111222222222222222222222222222222222222222",null);
          MutableAttributeSet attrs=new SimpleAttributeSet();
          StyleConstants.setBold(attrs,true);
          ((StyledDocument)edit.getDocument()).setCharacterAttributes(30,5,attrs,false);
          StyleConstants.setUnderline(attrs,true);
          ((StyledDocument)edit.getDocument()).setCharacterAttributes(35,5,attrs,false);
          StyleConstants.setFontSize(attrs,25);
          ((StyledDocument)edit.getDocument()).setCharacterAttributes(40,5,attrs,false);
          frame.getContentPane().add(scroll);
          frame.setBounds(0,0,150,150);
          frame.show();
     public static void main(String[] args) throws Exception {
          new TestWrapping();
}The same functionality works fine on Windows XP and problem is observed on MAC OS 10.4/10.5, Ubuntu 8.04. I am using jdk1.5 on both the platforms. I tested using jdk 6.0 on Ubuntu 8.04, and the problem is easily reproducible. I placed a query in the respective OS forums also but did not receive any replies. I also searched the sun’s bug database, but could not find any bug addressing the mentioned problem correctly. I also logged issue at bugs.sun.com and was assigned internal review ID of 1480019 for this problem.
If you need any additional information, please let me know.
Thanks in advance.
Regards,
VPKVL

Answer 1

VPKVL wrote:
Hi All,
Just want to update that when I checked this issue with JDK1.6 on Ubuntu 8.04, I am unable to reproduce the issue. Everything works as expected. But problem continues on MAC 10.5. So can anybody help me out in coming out of this issue on MAC 10.5.
Thanks in advance.The only thing I can suggest is that you open a bug (radar) with apple ( developer.apple.com ), and then wait at least 12 months for Apple to get around to fixing it :s