If I paste a formated text in an editable JTextPane or JEditorPane then it will insert an additional paragraph before and after the inserted line.

To reproduce:
- copy some of the text in TextPane (Ctrl-C).
- paste the text (Ctrl-V).
- observer 2 additional paragraphs above the pasted text.

---------- BEGIN SOURCE ----------
import javax.swing.*;

public class TestCopyAndPaste {
    
    public static void main( String[] args ) {
        
        JFrame frame = new JFrame();
        
        JTextPane text = new JTextPane();
        
        text.setContentType( "text/html" );
        
        text.setText( "<p> normal Text <font color='red'>red Text</font> <b>bold text</b>" );
        
        frame.add( text );
        
        frame.pack();
        
        frame.show();
        
    }
    
}
---------- END SOURCE ----------