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java.lang.IllegalStateException: Already connected at java.net.URLConnection.checkNotConnected(URLConnection.java:464) at java.net.URLConnection.setDoOutput(URLConnection.java:878) at com.android.volley.toolbox.HurlStack.addBodyIfExists(HurlStack.java:225) at com.android.volley.toolbox.HurlStack.setConnectionParametersForRequest(HurlStack.java:210) at com.android.volley.toolbox.HurlStack.performRequest(HurlStack.java:106) at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:93) at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:105)