Caused by: java.net.ProtocolException: cannot write to a URLConnection if doOutput=false - call setDoOutput(true)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:838)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:916)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:367)
at org.jboss.remoting.transport.http.HTTPClientInvoker.useHttpURLConnection(HTTPClientInvoker.java:314)
... 28 more