JSF にてファイルアップロード方法

<h:form id="upload" enctype="multipart/form-data" >

	<h:commandButton id="button1" value="Upload" action="#{File.upFile}" /><BR><BR>

</h:form>

<form id="resultDetail" method="post" action="XXX.jsp" enctype="multipart/form-data">
	<input id="resultDetail:button6" type="submit" name="resultDetail:button6" value="File" /><BR><BR>
	<input type="hidden" name="resultDetail" value="resultDetail" />
</form>

import javax.mail.*;
import javax.mail.util.*;
import javax.mail.internet.*;

String type = request.getContentType();
if ((type!=null) && type.startsWith("multipart/form-data")) {
    // form入力でmultipartの場合
    ByteArrayDataSource src = new ByteArrayDataSource(request.getInputStream(), type);
    MimeMultipart mmp = new MimeMultipart(src);
// form入力でheaderが無いデータだとmmp.getCount()で例外となる
//    int len = mmp.getCount();
    BodyPart part = null;
    boolean end = false;
    int count = 0;
    while (true) {
        Properties props = null;
        Object content = null;
        try {
            part = mmp.getBodyPart(count);
            content = part.getContent();
            Enumeration en = part.getAllHeaders();
            while (en.hasMoreElements()) {
                Header header = (Header)en.nextElement();
                if (header.getName().equals("Content-Disposition")) {
                    props = parseDisposition(header.getValue());
                }
            }
        }
        catch (MessagingException me) {
            end = true;
            break;
        }
        catch (IndexOutOfBoundsException ie) {
            end = true;
            break;
        }
        catch (Exception e) {
            throw e;
        }
        count++;

        String temp = props.getProperty("name");
        if (temp==null) {
throw new IllegalArgumentException("Unknown part:props" + props);
        }
        else if (temp.startsWith(MY_FILEPREFIX)) {
            String filepath = props.getProperty("filename");
            InputStream ins = null;
            if (content==null) {
                throw new IllegalArgumentException("body[" + (count-1) + "] content=null");
            }
            else if (content instanceof InputStream) {
                ins = (InputStream)content;
            }
            else if (content instanceof byte[]) {
                ins = new ByteArrayInputStream((byte[])content);
            }
            else if (content instanceof String) {
                m_parameters.put(temp, content);
            }
            else throw new IllegalArgumentException("unknonw body[" + (count-1) + "] content:" + content.getClass());

            if (ins!=null) {
                byte[] b = new byte[0x4000];
                ByteArrayOutputStream bous = new ByteArrayOutputStream();
                int n;
                while ((n=ins.read(b))!=-1) {
                    bous.write(b, 0, n);
                }
                m_parameters.put(temp, bous.toByteArray());
            }
        }
        else if (temp.startsWith(MY_PREFIX)) {
             m_parameters.put(temp, part.getContent());
        }
    }
}