I have some automated tests that use HttpURLConnection to exercise a RESTful API. 

Part of my code (below) asserts that the the response returns a certain HTTP Response code. I am expecting a HTTP 206 Response, but getResponseCode is always returning 200. However if I hit the url directly using curl, I get 'HTTP/1.1 206 Partial Content' as expected.

```
    URL requestURL = new URL(url);
    HttpURLConnection connection = (HttpURLConnection) requestURL.openConnection();
    try {
        connection.setRequestProperty("Connection", "close");
        connection.setReadTimeout(5000);

        assertEquals("Request successfully handled", 
                expectedResponseCode, 
                connection.getResponseCode());

        InputStream input = connection.getInputStream();
        try {
            return toString(input);
        } finally {
            input.close();
        }
    } finally {
        connection.disconnect();
    }

```

Any ideas on why this is happening and how to get the behaviour I want?