uploadDescriptor.setType(UploadFieldType.getSingleton());
uploadDescriptor.setName("fileToUpload");
// Create descriptor for the enclosing form
FormDescriptor formDescriptor = new FormDescriptor();
formDescriptor.addField(uploadDescriptor);
// Create atributes of the upload element
uploadAttrs = new XFUploadAttributes();
uploadAttrs.setFieldDescriptor(uploadDescriptor);
uploadAttrs.setName(uploadDescriptor.getName());