import io.netty.util.concurrent.Promise;
import java.util.Set;
import org.opendaylight.netconf.nettyutil.handler.exi.NetconfStartExiMessage;
-import org.opendaylight.netconf.util.messages.NetconfHelloMessage;
-import org.opendaylight.netconf.util.messages.NetconfHelloMessageAdditionalHeader;
+import org.opendaylight.netconf.api.messages.NetconfHelloMessage;
+import org.opendaylight.netconf.api.messages.NetconfHelloMessageAdditionalHeader;
import org.opendaylight.netconf.api.NetconfClientSessionPreferences;
import org.opendaylight.netconf.api.NetconfDocumentedException;
import org.opendaylight.netconf.api.NetconfMessage;