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POURLConnection Error - java.io.IOException: Server returned HTTP response code: 400 for URL
 

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    <p>I am trying to connect to a URL from a desktop app, and I get the error indicated in the Title of my question, but when I tried to connect to the same URL from servlet, all works fine. When I load the URL from browser, all works fine. I am using the same code in the servlet. The code was in a library, when it didn't work, I pulled the code out to a class in the current project, yet it didn't work.</p> <p>The URL <a href="https://graph.facebook.com/me" rel="noreferrer">https://graph.facebook.com/me</a>. </p> <p>The Code fragment.</p> <pre><code>public static String post(String urlSpec, String data) throws Exception { URL url = new URL(urlSpec); URLConnection connection = url.openConnection(); connection.setDoOutput(true); OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream()); writer.write(data); writer.flush(); BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream())); String line = ""; StringBuilder builder = new StringBuilder(); while((line = reader.readLine()) != null) { builder.append(line); } return builder.toString(); } </code></pre> <p>I'm a little bit confused here, is there something that is present is a servlet that is not a normal desktop app?</p> <p>Thanks.</p> <p>FULL STACK TRACE</p> <pre><code>Feb 8, 2011 9:54:14 AM com.trinisoftinc.jiraffe.objects.FacebookAlbum create SEVERE: null java.io.IOException: Server returned HTTP response code: 400 for URL: https://graph.facebook.com/me at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1313) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:234) at com.jiraffe.helpers.Util.post(Util.java:49) at com.trinisoftinc.jiraffe.objects.FacebookAlbum.create(FacebookAlbum.java:211) at com.trinisoftinc.jiraffe.objects.FacebookAlbum.main(FacebookAlbum.java:261) </code></pre>
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    1. USAardvocate Akintayo Olusegun
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    1. COI'd suspect Https can cause problems. But give your full exception stacktrace
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