Java Programming

I want it got time out if the connection if lose while i read a stream from URL

try {
	int timeout = 700;
	HttpURLConnection connection = (HttpURLConnection) downloadURl.openConnection();
	connection.setConnectTimeout(timeout);
	connection.setRequestProperty("Range","bytes=" + downloaded + "-");

	connection.connect();
	if (connection.getResponseCode() / 100 != 2) {
		error();
	}

	int contentLength = connection.getContentLength();
	if (contentLength < 1) {
		error();
	}

	if (status == DOWNLOADING){
		if (size == -1) {
			size = contentLength;
		}

		file = new RandomAccessFile(saveTmpName+".tmp", "rw");
		file.seek(downloaded);
	}

	byte buffer[];
	stream = connection.getInputStream();
connection.setReadTimeout(timeout);
	while (status == DOWNLOADING) {  
		if (size - downloaded > MAX_BUFFER_SIZE) {
			buffer = new byte[MAX_BUFFER_SIZE];
		} else {
			buffer = new byte[(int)(size - downloaded)];
		}


		int read = stream.read(buffer); // how to set timeout while it is reading stream
		if (read <= 0)
			break;

		file.write(buffer, 0, read);
		downloaded += read;
	}

	if (status == DOWNLOADING) {
		status = COMPLETE;
	}
				
} catch (SocketTimeoutException  e) {
	error();
} catch (IllegalArgumentException e) {
	error();
} catch (Exception e) {
	error();
} finally {
	if (file != null) {
		try {
			file.close();
		} catch (Exception e) {}
	}

	if (stream != null) {
		try {
			stream.close();
		} catch (Exception e) {}
	}
}

I try to set "setReadTimeout()" but is still not through timeout Exception