@Override
    public boolean isRequesterCharged() {
        return isRequesterCharged;
    }
For internal use only. Sets the encoding type used by Amazon S3 to encode
object key names in the XML response.

@param encodingType
           <code>Null</code> if <code>encodingType</code> is not
           specified in the request parameter.
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/model/ObjectListing.java