connection.setIfModifiedSince(ifModifiedSince);
        connection.setUseCaches(useCaches);
    }

    private static class CacheStream extends OutputStream {

        private final OutputStream stream;

        private final OutputStream collector;

        public CacheStream(OutputStream stream, OutputStream collector) {
            this.stream = stream;
            this.collector = collector;
        }

        this.connection.setConnectTimeout(connectTimeout);
    }

    private static class CacheStream extends OutputStream {

        private final OutputStream stream;

        private final OutputStream collector;


        public CacheStream ( OutputStream stream, OutputStream collector ) {
            this.stream = stream;
            this.collector = collector;
        }