-import com.google.common.base.Charsets;
-import com.google.common.base.Optional;
-import com.google.common.collect.Sets;
-import io.netty.channel.ChannelFuture;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.opendaylight.controller.netconf.util.test.XmlUnitUtil.assertContainsElementWithText;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.util.Collection;
+import java.util.List;
+import java.util.Set;
+