UnknownHostException:http

Question

Hi all,
We are migrating an application from 5.1 to 7.0 version and when we access the url which belongs to the application it throws UnknownHostException:http .This is thrown in the class
public class DAVURLConnection extends sun.net.www.protocol.http.HttpURLConnection
And the stack trace is:
10/4/12 1:15:01:244 CDT 00000027 SystemErr R java.net.UnknownHostException: http
10/4/12 1:15:01:244 CDT 00000027 SystemErr R at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:207)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at java.net.Socket.connect(Socket.java:539)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at java.net.Socket.connect(Socket.java:488)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at sun.net.www.http.HttpClient.openServer(HttpClient.java:407)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at sun.net.www.http.HttpClient$4.run(HttpClient.java:470)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at java.security.AccessController.doPrivileged(AccessController.java:251)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:452)
10/4/12 1:15:01:245 CDT 00000027 SystemErr R at sun.net.www.http.HttpClient.openServer(HttpClient.java:533)
10/4/12 1:15:01:246 CDT 00000027 SystemErr R at sun.net.www.http.HttpClient.<init>(HttpClient.java:246)
10/4/12 1:15:01:246 CDT 00000027 SystemErr R at sun.net.www.http.HttpClient.New(HttpClient.java:319)
10/4/12 1:15:01:246 CDT 00000027 SystemErr R at sun.net.www.http.HttpClient.New(HttpClient.java:336)
10/4/12 1:15:01:246 CDT 00000027 SystemErr R at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:980)
10/4/12 1:15:01:246 CDT 00000027 SystemErr R at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:959)
10/4/12 1:15:01:246 CDT 00000027 SystemErr R at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:846)
10/4/12 1:15:01:246 CDT 00000027 SystemErr R at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1024)
10/4/12 1:15:01:247 CDT 00000027 SystemErr R at com.ibm.webdav.protocol.http.DAVURLConnection.getOutputStream(DAVURLConnection.java:89)
To add more info . We did telnet for hostname to which we are trying to connect from the linux server for this we could able to telnet but when we try to connect that host through java code then we are getting the above specified stacktrace at getOutputStream() method. getOutputStream() method is overriden in above mentioned class WebDAVURLConnection and calling super.getOutputStream() method.Are we need to do any jar files inclusion after migrating to 7.0 version? Do we need to change code which uses this method ? Any suggestions.
Edited by: 962584 on Oct 4, 2012 4:57 AM

Answer 1

The code:
URL getUrl = new URL("ValidURL");
               String protocol = getUrl.getProtocol();
               int port = getUrl.getPort();
DAVURLConnection getUrlCon = new DAVURLConnection(getUrl, protocol, port);
               getUrlCon.setDoInput(true);
               getUrlCon.setRequestMethod("PUT");
               getUrlCon.setRequestProperty("Content-type", "text/xml");
               getUrlCon.setRequestProperty("Depth", depth);
               getUrlCon.setFollowRedirects(false);
               authenticate(cookieList, getUrlCon, respCode);
               getUrlCon.setDoOutput(true);
               OutputStream os = getUrlCon.getOutputStream(); --- getting exception at this point
============================================
In DAVURLConnection (Url , protocol, port) construtor, we are calling super(u, host, port) constructor of sun.net.www.protocol.http.HttpURLConnection.
i.e public DAVURLConnection(URL u, String host, int port) throws IOException {
super(u, host, port);
Edited by: 962584 on Oct 4, 2012 4:53 AM
Edited by: 962584 on Oct 4, 2012 4:56 AM