java.net.SocketTimeoutException: Read timed out
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
 at sun.reflect.DelegatingConstructorAccessImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
 at sun.net.www.protocol.http.HttpURLConnection$6run(HttpURLConnection.java:1491)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1485)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139)
 at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:379)
 at hudson.remoting.Engine.run(Engine.java:168)
Caused by: java.net.SocketTimeoutException: Read timed out
 at java.net.SocketInputStream.socketRead0(Native Method)
 at java.net.SocketInputStream.read(SocketInputStream.java:129)
 at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
 at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
 at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
 at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:687)
 at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:632)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1195)
 at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2308)
 at hudson.remoting.Engine.run(Engine.java:167)