Java Swing How to - Extend HTMLEditorKit to create pre-wrap in a JEditorPane

Question

We would like to know how to extend HTMLEditorKit to create pre-wrap in a JEditorPane.
Answer

import java.awt.BorderLayout;
import java.awt.Dimension;
//from  w w w . j  a  v  a2s .  c  om
import javax.swing.JEditorPane;
import javax.swing.JScrollPane;
import javax.swing.text.AbstractDocument;
import javax.swing.text.AttributeSet;
import javax.swing.text.Element;
import javax.swing.text.StyleConstants;
import javax.swing.text.View;
import javax.swing.text.ViewFactory;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLEditorKit;

public class Main extends javax.swing.JFrame {
  public Main() {
    JEditorPane editorPane = new JEditorPane();
    JScrollPane scrollPane = new JScrollPane();

    this.setPreferredSize(new Dimension(300, 300));
    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
    getContentPane().setLayout(new BorderLayout());
    editorPane.setEditorKit(new PreWrapHTMLEditorKit());
    editorPane
        .setText(""
            + "<html>"
            + "<head></head>"
            + "<body>"
            + "<pre>long text line long text line long text line long text line (two new lines here!)\n\n"
            + "long text line long text line long text line long text line long text line long text line</pre>"
            + "</body>" + "</html>");
    scrollPane.setViewportView(editorPane);
    getContentPane().add(scrollPane);
    pack();
  }

  public static void main(String args[]) {
    new Main().setVisible(true);
  }
}

class PreWrapHTMLEditorKit extends HTMLEditorKit {
  ViewFactory viewFactory = new HTMLFactory() {
    @Override
    public View create(Element elem) {
      AttributeSet attrs = elem.getAttributes();
      Object elementName = attrs
          .getAttribute(AbstractDocument.ElementNameAttribute);
      Object o = (elementName != null) ? null : attrs
          .getAttribute(StyleConstants.NameAttribute);
      if (o instanceof HTML.Tag) {
        HTML.Tag kind = (HTML.Tag) o;
        if (kind == HTML.Tag.IMPLIED) {
          return new javax.swing.text.html.ParagraphView(elem);
        }
      }
      return super.create(elem);
    }
  };

  @Override
  public ViewFactory getViewFactory() {
    return this.viewFactory;
  }
}