obj = ((WrappedFile<?>)obj).getFile();
}
if (obj instanceof File) {
filePayload = (File) obj;
} else {
throw new InvalidArgumentException("aws-s3: MultiPart upload requires a File input.");
}
ObjectMetadata objectMetadata = determineMetadata(exchange);
if (objectMetadata.getContentLength() == 0) {
objectMetadata.setContentLength(filePayload.length());