iText 5.0.0 RTF和HTML在哪里？

import com.itextpdf.text.Document;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.rtf.RtfWriter2;

public void createPdf(String filePath, String content) throws DocumentException, IOException {
    Document document = new Document();
    RtfWriter2.getInstance(document, new FileOutputStream(filePath));
    document.open();
    document.add(content);
    document.close();
}

import com.itextpdf.text.Document;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.tool.xml.XMLWorkerHelper;

public void createPdf(String filePath, String content) throws DocumentException, IOException {
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(filePath));
    document.open();
    XMLWorkerHelper.getInstance().parseXHtml(writer, document, new StringReader(content));
    document.close();
}