The url used is :  https://www.amazon.com/Harry-Potter-Sorcerers-Stone-Rowling/dp/059035342X/ref=sr_1_1?ie=UTF8&qid=1474762978&sr=8-1&keywords=harry+potter+and+the+sorcerer%27s+stone

URL INFO :

https://www.amazon.com/Harry-Potter-Sorcerers-Stone-Rowling/dp/059035342X/ref=sr_1_1?ie=UTF8&qid=1474762978&sr=8-1&keywords=harry+potter+and+the+sorcerer%27s+stone:
  Content Type: text/html
  Content Length: 1378
  Last Modified: Fri Jul 08 19:26:59 EDT 2016
  Expiration: 0
  Content Encoding: null

URL without agent :

Contents of the following URL: https://www.amazon.com/Harry-Potter-Sorcerers-Stone-Rowling/dp/059035342X/ref=sr_1_1?ie=UTF8&qid=1474762978&sr=8-1&keywords=harry+potter+and+the+sorcerer%27s+stone

Exception in thread "main" java.io.IOException: Server returned HTTP response code: 503 for URL: https://www.amazon.com/Harry-Potter-Sorcerers-Stone-Rowling/dp/059035342X/ref=sr_1_1?ie=UTF8&qid=1474762978&sr=8-1&keywords=harry+potter+and+the+sorcerer%27s+stone
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
    at java.net.URL.openStream(Unknown Source)
    at WebpageReaderWithoutAgent.read(WebpageReaderWithoutAgent.java:11)
    at WebpageReaderWithoutAgent.main(WebpageReaderWithoutAgent.java:24)

URL with agent :
Printed out 8k+ lines
The contents of the outputs are attached.