String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
assert monitors.containsKey(txid);
long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, fee_estimator, logger);
String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
assert monitors.containsKey(txid);
long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, fee_estimator, logger);