import org.checkerframework.checker.index.qual.NonNegative;
import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.netconf.api.NetconfDocumentedException;
-import org.opendaylight.netconf.api.NetconfMessage;
import org.opendaylight.netconf.api.messages.HelloMessage;
+import org.opendaylight.netconf.api.messages.NetconfMessage;
import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
import org.opendaylight.netconf.api.xml.XmlUtil;
import org.opendaylight.netconf.nettyutil.AbstractChannelInitializer;