แก้ปัญหาชื่อ download zip file ภาษาไทย servlet java

import java.net.URLEncoder;
...
...
private void setHeader(HttpServletResponse response, String name, String type) throws UnsupportedEncodingException {

    response.setContentType(type);
    response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("hippo_" + name, "UTF-8"));//***
    response.setHeader("language", "th-TH");//***
}