private String getSelectionAsHTML() {
    StringWriter buf = new StringWriter();
    HTMLWriter writer = new HTMLWriter(buf,
        (HTMLDocument)jTextPane.getDocument(), jTextPane.getSelectionStart(), jTextPane.getSelectionEnd());
    try {
        writer.write();
    } catch (BadLocationException | IOException ex) {
        ex.printStackTrace();
    }
    return buf.toString();
}