- long ret = bindings.KeysManager_spend_spendable_outputs(this.ptr, Arrays.stream(descriptors).mapToLong(descriptors_conv_27 -> descriptors_conv_27.ptr).toArray(), Arrays.stream(outputs).mapToLong(outputs_conv_7 -> outputs_conv_7.ptr).toArray(), change_destination_script, feerate_sat_per_1000_weight);
+ long ret = bindings.KeysManager_spend_spendable_outputs(this.ptr, descriptors != null ? Arrays.stream(descriptors).mapToLong(descriptors_conv_27 -> descriptors_conv_27.ptr).toArray() : null, outputs != null ? Arrays.stream(outputs).mapToLong(outputs_conv_7 -> outputs_conv_7.ptr).toArray() : null, change_destination_script, feerate_sat_per_1000_weight);
+ if (ret >= 0 && ret <= 4096) { return null; }