_ Git - ldk-java/blob - src/main/java/org/ldk/structs/UtilMethods.java

   1 package org.ldk.structs;
   2 import org.ldk.impl.bindings;
   3 import org.ldk.enums.*;
   4 import org.ldk.util.*;
   5 import java.util.Arrays;
   6 import java.lang.ref.Reference;
   7 import javax.annotation.Nullable;
   8
   9 public class UtilMethods {
  10         /**
  11          * Gets the 128-bit integer, as 16 little-endian bytes
  12          */
  13         public static byte[] U128_le_bytes(org.ldk.util.UInt128 val) {
  14                 byte[] ret = bindings.U128_le_bytes(val.getLEBytes());
  15                 Reference.reachabilityFence(val);
  16                 return ret;
  17         }
  18
  19         /**
  20          * Constructs a new U128 from 16 little-endian bytes
  21          */
  22         public static UInt128 U128_new(byte[] le_bytes) {
  23                 byte[] ret = bindings.U128_new(InternalUtils.check_arr_len(le_bytes, 16));
  24                 Reference.reachabilityFence(le_bytes);
  25                 org.ldk.util.UInt128 ret_conv = new org.ldk.util.UInt128(ret);
  26                 return ret_conv;
  27         }
  28
  29         /**
  30          * Constructs a new COption_NoneZ containing a
  31          */
  32         public static COption_NoneZ COption_NoneZ_some() {
  33                 COption_NoneZ ret = bindings.COption_NoneZ_some();
  34                 return ret;
  35         }
  36
  37         /**
  38          * Constructs a new COption_NoneZ containing nothing
  39          */
  40         public static COption_NoneZ COption_NoneZ_none() {
  41                 COption_NoneZ ret = bindings.COption_NoneZ_none();
  42                 return ret;
  43         }
  44
  45         /**
  46          * Read a APIError from a byte array, created by APIError_write
  47          */
  48         public static Result_COption_APIErrorZDecodeErrorZ APIError_read(byte[] ser) {
  49                 long ret = bindings.APIError_read(ser);
  50                 Reference.reachabilityFence(ser);
  51                 if (ret >= 0 && ret <= 4096) { return null; }
  52                 Result_COption_APIErrorZDecodeErrorZ ret_hu_conv = Result_COption_APIErrorZDecodeErrorZ.constr_from_ptr(ret);
  53                 return ret_hu_conv;
  54         }
  55
  56         /**
  57          * Creates a digital signature of a message given a SecretKey, like the node's secret.
  58          * A receiver knowing the PublicKey (e.g. the node's id) and the message can be sure that the signature was generated by the caller.
  59          * Signatures are EC recoverable, meaning that given the message and the signature the PublicKey of the signer can be extracted.
  60          */
  61         public static Result_StringErrorZ sign(byte[] msg, byte[] sk) {
  62                 long ret = bindings.sign(msg, InternalUtils.check_arr_len(sk, 32));
  63                 Reference.reachabilityFence(msg);
  64                 Reference.reachabilityFence(sk);
  65                 if (ret >= 0 && ret <= 4096) { return null; }
  66                 Result_StringErrorZ ret_hu_conv = Result_StringErrorZ.constr_from_ptr(ret);
  67                 return ret_hu_conv;
  68         }
  69
  70         /**
  71          * Recovers the PublicKey of the signer of the message given the message and the signature.
  72          */
  73         public static Result_PublicKeyErrorZ recover_pk(byte[] msg, java.lang.String sig) {
  74                 long ret = bindings.recover_pk(msg, sig);
  75                 Reference.reachabilityFence(msg);
  76                 Reference.reachabilityFence(sig);
  77                 if (ret >= 0 && ret <= 4096) { return null; }
  78                 Result_PublicKeyErrorZ ret_hu_conv = Result_PublicKeyErrorZ.constr_from_ptr(ret);
  79                 return ret_hu_conv;
  80         }
  81
  82         /**
  83          * Verifies a message was signed by a PrivateKey that derives to a given PublicKey, given a message, a signature,
  84          * and the PublicKey.
  85          */
  86         public static boolean verify(byte[] msg, java.lang.String sig, byte[] pk) {
  87                 boolean ret = bindings.verify(msg, sig, InternalUtils.check_arr_len(pk, 33));
  88                 Reference.reachabilityFence(msg);
  89                 Reference.reachabilityFence(sig);
  90                 Reference.reachabilityFence(pk);
  91                 return ret;
  92         }
  93
  94         /**
  95          * Construct the invoice's HRP and signatureless data into a preimage to be hashed.
  96          */
  97         public static byte[] construct_invoice_preimage(byte[] hrp_bytes, UInt5[] data_without_signature) {
  98                 byte[] ret = bindings.construct_invoice_preimage(hrp_bytes, data_without_signature != null ? InternalUtils.convUInt5Array(data_without_signature) : null);
  99                 Reference.reachabilityFence(hrp_bytes);
 100                 Reference.reachabilityFence(data_without_signature);
 101                 return ret;
 102         }
 103
 104         /**
 105          * Read a MonitorEvent from a byte array, created by MonitorEvent_write
 106          */
 107         public static Result_COption_MonitorEventZDecodeErrorZ MonitorEvent_read(byte[] ser) {
 108                 long ret = bindings.MonitorEvent_read(ser);
 109                 Reference.reachabilityFence(ser);
 110                 if (ret >= 0 && ret <= 4096) { return null; }
 111                 Result_COption_MonitorEventZDecodeErrorZ ret_hu_conv = Result_COption_MonitorEventZDecodeErrorZ.constr_from_ptr(ret);
 112                 return ret_hu_conv;
 113         }
 114
 115         /**
 116          * Read a C2Tuple_BlockHashChannelMonitorZ from a byte array, created by C2Tuple_BlockHashChannelMonitorZ_write
 117          */
 118         public static Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ C2Tuple_BlockHashChannelMonitorZ_read(byte[] ser, org.ldk.structs.EntropySource arg_a, org.ldk.structs.SignerProvider arg_b) {
 119                 long ret = bindings.C2Tuple_BlockHashChannelMonitorZ_read(ser, arg_a.ptr, arg_b.ptr);
 120                 Reference.reachabilityFence(ser);
 121                 Reference.reachabilityFence(arg_a);
 122                 Reference.reachabilityFence(arg_b);
 123                 if (ret >= 0 && ret <= 4096) { return null; }
 124                 Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ ret_hu_conv = Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.constr_from_ptr(ret);
 125                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_a); };
 126                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_b); };
 127                 return ret_hu_conv;
 128         }
 129
 130         /**
 131          * Fetches the set of [`InitFeatures`] flags which are provided by or required by
 132          * [`ChannelManager`].
 133          */
 134         public static InitFeatures provided_init_features(org.ldk.structs.UserConfig _config) {
 135                 long ret = bindings.provided_init_features(_config == null ? 0 : _config.ptr);
 136                 Reference.reachabilityFence(_config);
 137                 if (ret >= 0 && ret <= 4096) { return null; }
 138                 org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
 139                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(ret_hu_conv); };
 140                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(_config); };
 141                 return ret_hu_conv;
 142         }
 143
 144         /**
 145          * Read a C2Tuple_BlockHashChannelManagerZ from a byte array, created by C2Tuple_BlockHashChannelManagerZ_write
 146          */
 147         public static Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ C2Tuple_BlockHashChannelManagerZ_read(byte[] ser, EntropySource arg_entropy_source, NodeSigner arg_node_signer, SignerProvider arg_signer_provider, FeeEstimator arg_fee_estimator, Watch arg_chain_monitor, BroadcasterInterface arg_tx_broadcaster, Router arg_router, Logger arg_logger, UserConfig arg_default_config, ChannelMonitor[] arg_channel_monitors) {
 148                 long ret = bindings.C2Tuple_BlockHashChannelManagerZ_read(ser, bindings.ChannelManagerReadArgs_new(arg_entropy_source.ptr, arg_node_signer.ptr, arg_signer_provider.ptr, arg_fee_estimator.ptr, arg_chain_monitor.ptr, arg_tx_broadcaster.ptr, arg_router.ptr, arg_logger.ptr, arg_default_config == null ? 0 : arg_default_config.ptr, arg_channel_monitors != null ? Arrays.stream(arg_channel_monitors).mapToLong(arg_channel_monitors_conv_16 -> arg_channel_monitors_conv_16 == null ? 0 : arg_channel_monitors_conv_16.ptr).toArray() : null));
 149                 Reference.reachabilityFence(ser);
 150                 Reference.reachabilityFence(arg_entropy_source);
 151                 Reference.reachabilityFence(arg_node_signer);
 152                 Reference.reachabilityFence(arg_signer_provider);
 153                 Reference.reachabilityFence(arg_fee_estimator);
 154                 Reference.reachabilityFence(arg_chain_monitor);
 155                 Reference.reachabilityFence(arg_tx_broadcaster);
 156                 Reference.reachabilityFence(arg_router);
 157                 Reference.reachabilityFence(arg_logger);
 158                 Reference.reachabilityFence(arg_default_config);
 159                 Reference.reachabilityFence(arg_channel_monitors);
 160                 if (ret >= 0 && ret <= 4096) { return null; }
 161                 Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ ret_hu_conv = Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.constr_from_ptr(ret);
 162                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_entropy_source); };
 163                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_node_signer); };
 164                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_signer_provider); };
 165                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_fee_estimator); };
 166                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_chain_monitor); };
 167                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_tx_broadcaster); };
 168                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_router); };
 169                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_logger); };
 170                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_default_config); };
 171                 for (ChannelMonitor arg_channel_monitors_conv_16: arg_channel_monitors) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(arg_channel_monitors_conv_16); }; };
 172                 return ret_hu_conv;
 173         }
 174
 175         /**
 176          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment`], but no
 177          * `ChannelManager` is required. Useful for generating invoices for [phantom node payments] without
 178          * a `ChannelManager`.
 179          *
 180          * `keys` is generated by calling [`NodeSigner::get_inbound_payment_key_material`] and then
 181          * calling [`ExpandedKey::new`] with its result. It is recommended to cache this value and not
 182          * regenerate it for each new inbound payment.
 183          *
 184          * `current_time` is a Unix timestamp representing the current time.
 185          *
 186          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 187          * on versions of LDK prior to 0.0.114.
 188          *
 189          * [phantom node payments]: crate::chain::keysinterface::PhantomKeysManager
 190          * [`NodeSigner::get_inbound_payment_key_material`]: crate::chain::keysinterface::NodeSigner::get_inbound_payment_key_material
 191          */
 192         public static Result_C2Tuple_PaymentHashPaymentSecretZNoneZ create(org.ldk.structs.ExpandedKey keys, org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.EntropySource entropy_source, long current_time, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 193                 long ret = bindings.create(keys == null ? 0 : keys.ptr, min_value_msat.ptr, invoice_expiry_delta_secs, entropy_source.ptr, current_time, min_final_cltv_expiry_delta.ptr);
 194                 Reference.reachabilityFence(keys);
 195                 Reference.reachabilityFence(min_value_msat);
 196                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 197                 Reference.reachabilityFence(entropy_source);
 198                 Reference.reachabilityFence(current_time);
 199                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 200                 if (ret >= 0 && ret <= 4096) { return null; }
 201                 Result_C2Tuple_PaymentHashPaymentSecretZNoneZ ret_hu_conv = Result_C2Tuple_PaymentHashPaymentSecretZNoneZ.constr_from_ptr(ret);
 202                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(keys); };
 203                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_value_msat); };
 204                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(entropy_source); };
 205                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 206                 return ret_hu_conv;
 207         }
 208
 209         /**
 210          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash`],
 211          * but no `ChannelManager` is required. Useful for generating invoices for [phantom node payments]
 212          * without a `ChannelManager`.
 213          *
 214          * See [`create`] for information on the `keys` and `current_time` parameters.
 215          *
 216          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 217          * on versions of LDK prior to 0.0.114.
 218          *
 219          * [phantom node payments]: crate::chain::keysinterface::PhantomKeysManager
 220          */
 221         public static Result_PaymentSecretNoneZ create_from_hash(org.ldk.structs.ExpandedKey keys, org.ldk.structs.Option_u64Z min_value_msat, byte[] payment_hash, int invoice_expiry_delta_secs, long current_time, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 222                 long ret = bindings.create_from_hash(keys == null ? 0 : keys.ptr, min_value_msat.ptr, InternalUtils.check_arr_len(payment_hash, 32), invoice_expiry_delta_secs, current_time, min_final_cltv_expiry_delta.ptr);
 223                 Reference.reachabilityFence(keys);
 224                 Reference.reachabilityFence(min_value_msat);
 225                 Reference.reachabilityFence(payment_hash);
 226                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 227                 Reference.reachabilityFence(current_time);
 228                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 229                 if (ret >= 0 && ret <= 4096) { return null; }
 230                 Result_PaymentSecretNoneZ ret_hu_conv = Result_PaymentSecretNoneZ.constr_from_ptr(ret);
 231                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(keys); };
 232                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_value_msat); };
 233                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 234                 return ret_hu_conv;
 235         }
 236
 237         /**
 238          * Gets the weight for an HTLC-Success transaction.
 239          */
 240         public static long htlc_success_tx_weight(boolean opt_anchors) {
 241                 long ret = bindings.htlc_success_tx_weight(opt_anchors);
 242                 Reference.reachabilityFence(opt_anchors);
 243                 return ret;
 244         }
 245
 246         /**
 247          * Gets the weight for an HTLC-Timeout transaction.
 248          */
 249         public static long htlc_timeout_tx_weight(boolean opt_anchors) {
 250                 long ret = bindings.htlc_timeout_tx_weight(opt_anchors);
 251                 Reference.reachabilityFence(opt_anchors);
 252                 return ret;
 253         }
 254
 255         /**
 256          * Check if a given input witness attempts to claim a HTLC.
 257          */
 258         public static Option_HTLCClaimZ HTLCClaim_from_witness(byte[] witness) {
 259                 long ret = bindings.HTLCClaim_from_witness(witness);
 260                 Reference.reachabilityFence(witness);
 261                 if (ret >= 0 && ret <= 4096) { return null; }
 262                 org.ldk.structs.Option_HTLCClaimZ ret_hu_conv = org.ldk.structs.Option_HTLCClaimZ.constr_from_ptr(ret);
 263                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(ret_hu_conv); };
 264                 return ret_hu_conv;
 265         }
 266
 267         /**
 268          * Build the commitment secret from the seed and the commitment number
 269          */
 270         public static byte[] build_commitment_secret(byte[] commitment_seed, long idx) {
 271                 byte[] ret = bindings.build_commitment_secret(InternalUtils.check_arr_len(commitment_seed, 32), idx);
 272                 Reference.reachabilityFence(commitment_seed);
 273                 Reference.reachabilityFence(idx);
 274                 return ret;
 275         }
 276
 277         /**
 278          * Build a closing transaction
 279          */
 280         public static byte[] build_closing_transaction(long to_holder_value_sat, long to_counterparty_value_sat, byte[] to_holder_script, byte[] to_counterparty_script, org.ldk.structs.OutPoint funding_outpoint) {
 281                 byte[] ret = bindings.build_closing_transaction(to_holder_value_sat, to_counterparty_value_sat, to_holder_script, to_counterparty_script, funding_outpoint == null ? 0 : funding_outpoint.ptr);
 282                 Reference.reachabilityFence(to_holder_value_sat);
 283                 Reference.reachabilityFence(to_counterparty_value_sat);
 284                 Reference.reachabilityFence(to_holder_script);
 285                 Reference.reachabilityFence(to_counterparty_script);
 286                 Reference.reachabilityFence(funding_outpoint);
 287                 return ret;
 288         }
 289
 290         /**
 291          * Derives a per-commitment-transaction private key (eg an htlc key or delayed_payment key)
 292          * from the base secret and the per_commitment_point.
 293          */
 294         public static byte[] derive_private_key(byte[] per_commitment_point, byte[] base_secret) {
 295                 byte[] ret = bindings.derive_private_key(InternalUtils.check_arr_len(per_commitment_point, 33), InternalUtils.check_arr_len(base_secret, 32));
 296                 Reference.reachabilityFence(per_commitment_point);
 297                 Reference.reachabilityFence(base_secret);
 298                 return ret;
 299         }
 300
 301         /**
 302          * Derives a per-commitment-transaction public key (eg an htlc key or a delayed_payment key)
 303          * from the base point and the per_commitment_key. This is the public equivalent of
 304          * derive_private_key - using only public keys to derive a public key instead of private keys.
 305          */
 306         public static byte[] derive_public_key(byte[] per_commitment_point, byte[] base_point) {
 307                 byte[] ret = bindings.derive_public_key(InternalUtils.check_arr_len(per_commitment_point, 33), InternalUtils.check_arr_len(base_point, 33));
 308                 Reference.reachabilityFence(per_commitment_point);
 309                 Reference.reachabilityFence(base_point);
 310                 return ret;
 311         }
 312
 313         /**
 314          * Derives a per-commitment-transaction revocation key from its constituent parts.
 315          *
 316          * Only the cheating participant owns a valid witness to propagate a revoked
 317          * commitment transaction, thus per_commitment_secret always come from cheater
 318          * and revocation_base_secret always come from punisher, which is the broadcaster
 319          * of the transaction spending with this key knowledge.
 320          */
 321         public static byte[] derive_private_revocation_key(byte[] per_commitment_secret, byte[] countersignatory_revocation_base_secret) {
 322                 byte[] ret = bindings.derive_private_revocation_key(InternalUtils.check_arr_len(per_commitment_secret, 32), InternalUtils.check_arr_len(countersignatory_revocation_base_secret, 32));
 323                 Reference.reachabilityFence(per_commitment_secret);
 324                 Reference.reachabilityFence(countersignatory_revocation_base_secret);
 325                 return ret;
 326         }
 327
 328         /**
 329          * Derives a per-commitment-transaction revocation public key from its constituent parts. This is
 330          * the public equivalend of derive_private_revocation_key - using only public keys to derive a
 331          * public key instead of private keys.
 332          *
 333          * Only the cheating participant owns a valid witness to propagate a revoked
 334          * commitment transaction, thus per_commitment_point always come from cheater
 335          * and revocation_base_point always come from punisher, which is the broadcaster
 336          * of the transaction spending with this key knowledge.
 337          *
 338          * Note that this is infallible iff we trust that at least one of the two input keys are randomly
 339          * generated (ie our own).
 340          */
 341         public static byte[] derive_public_revocation_key(byte[] per_commitment_point, byte[] countersignatory_revocation_base_point) {
 342                 byte[] ret = bindings.derive_public_revocation_key(InternalUtils.check_arr_len(per_commitment_point, 33), InternalUtils.check_arr_len(countersignatory_revocation_base_point, 33));
 343                 Reference.reachabilityFence(per_commitment_point);
 344                 Reference.reachabilityFence(countersignatory_revocation_base_point);
 345                 return ret;
 346         }
 347
 348         /**
 349          * A script either spendable by the revocation
 350          * key or the broadcaster_delayed_payment_key and satisfying the relative-locktime OP_CSV constrain.
 351          * Encumbering a `to_holder` output on a commitment transaction or 2nd-stage HTLC transactions.
 352          */
 353         public static byte[] get_revokeable_redeemscript(byte[] revocation_key, short contest_delay, byte[] broadcaster_delayed_payment_key) {
 354                 byte[] ret = bindings.get_revokeable_redeemscript(InternalUtils.check_arr_len(revocation_key, 33), contest_delay, InternalUtils.check_arr_len(broadcaster_delayed_payment_key, 33));
 355                 Reference.reachabilityFence(revocation_key);
 356                 Reference.reachabilityFence(contest_delay);
 357                 Reference.reachabilityFence(broadcaster_delayed_payment_key);
 358                 return ret;
 359         }
 360
 361         /**
 362          * Gets the witness redeemscript for an HTLC output in a commitment transaction. Note that htlc
 363          * does not need to have its previous_output_index filled.
 364          */
 365         public static byte[] get_htlc_redeemscript(org.ldk.structs.HTLCOutputInCommitment htlc, boolean opt_anchors, org.ldk.structs.TxCreationKeys keys) {
 366                 byte[] ret = bindings.get_htlc_redeemscript(htlc == null ? 0 : htlc.ptr, opt_anchors, keys == null ? 0 : keys.ptr);
 367                 Reference.reachabilityFence(htlc);
 368                 Reference.reachabilityFence(opt_anchors);
 369                 Reference.reachabilityFence(keys);
 370                 return ret;
 371         }
 372
 373         /**
 374          * Gets the redeemscript for a funding output from the two funding public keys.
 375          * Note that the order of funding public keys does not matter.
 376          */
 377         public static byte[] make_funding_redeemscript(byte[] broadcaster, byte[] countersignatory) {
 378                 byte[] ret = bindings.make_funding_redeemscript(InternalUtils.check_arr_len(broadcaster, 33), InternalUtils.check_arr_len(countersignatory, 33));
 379                 Reference.reachabilityFence(broadcaster);
 380                 Reference.reachabilityFence(countersignatory);
 381                 return ret;
 382         }
 383
 384         /**
 385          * Builds an unsigned HTLC-Success or HTLC-Timeout transaction from the given channel and HTLC
 386          * parameters. This is used by [`TrustedCommitmentTransaction::get_htlc_sigs`] to fetch the
 387          * transaction which needs signing, and can be used to construct an HTLC transaction which is
 388          * broadcastable given a counterparty HTLC signature.
 389          *
 390          * Panics if htlc.transaction_output_index.is_none() (as such HTLCs do not appear in the
 391          * commitment transaction).
 392          */
 393         public static byte[] build_htlc_transaction(byte[] commitment_txid, int feerate_per_kw, short contest_delay, org.ldk.structs.HTLCOutputInCommitment htlc, boolean opt_anchors, boolean use_non_zero_fee_anchors, byte[] broadcaster_delayed_payment_key, byte[] revocation_key) {
 394                 byte[] ret = bindings.build_htlc_transaction(InternalUtils.check_arr_len(commitment_txid, 32), feerate_per_kw, contest_delay, htlc == null ? 0 : htlc.ptr, opt_anchors, use_non_zero_fee_anchors, InternalUtils.check_arr_len(broadcaster_delayed_payment_key, 33), InternalUtils.check_arr_len(revocation_key, 33));
 395                 Reference.reachabilityFence(commitment_txid);
 396                 Reference.reachabilityFence(feerate_per_kw);
 397                 Reference.reachabilityFence(contest_delay);
 398                 Reference.reachabilityFence(htlc);
 399                 Reference.reachabilityFence(opt_anchors);
 400                 Reference.reachabilityFence(use_non_zero_fee_anchors);
 401                 Reference.reachabilityFence(broadcaster_delayed_payment_key);
 402                 Reference.reachabilityFence(revocation_key);
 403                 return ret;
 404         }
 405
 406         /**
 407          * Returns the witness required to satisfy and spend a HTLC input.
 408          *
 409          * Note that preimage (or a relevant inner pointer) may be NULL or all-0s to represent None
 410          */
 411         public static byte[] build_htlc_input_witness(byte[] local_sig, byte[] remote_sig, @Nullable byte[] preimage, byte[] redeem_script, boolean opt_anchors) {
 412                 byte[] ret = bindings.build_htlc_input_witness(InternalUtils.check_arr_len(local_sig, 64), InternalUtils.check_arr_len(remote_sig, 64), InternalUtils.check_arr_len(preimage, 32), redeem_script, opt_anchors);
 413                 Reference.reachabilityFence(local_sig);
 414                 Reference.reachabilityFence(remote_sig);
 415                 Reference.reachabilityFence(preimage);
 416                 Reference.reachabilityFence(redeem_script);
 417                 Reference.reachabilityFence(opt_anchors);
 418                 return ret;
 419         }
 420
 421         /**
 422          * Gets the witnessScript for the to_remote output when anchors are enabled.
 423          */
 424         public static byte[] get_to_countersignatory_with_anchors_redeemscript(byte[] payment_point) {
 425                 byte[] ret = bindings.get_to_countersignatory_with_anchors_redeemscript(InternalUtils.check_arr_len(payment_point, 33));
 426                 Reference.reachabilityFence(payment_point);
 427                 return ret;
 428         }
 429
 430         /**
 431          * Gets the witnessScript for an anchor output from the funding public key.
 432          * The witness in the spending input must be:
 433          * <BIP 143 funding_signature>
 434          * After 16 blocks of confirmation, an alternative satisfying witness could be:
 435          * <>
 436          * (empty vector required to satisfy compliance with MINIMALIF-standard rule)
 437          */
 438         public static byte[] get_anchor_redeemscript(byte[] funding_pubkey) {
 439                 byte[] ret = bindings.get_anchor_redeemscript(InternalUtils.check_arr_len(funding_pubkey, 33));
 440                 Reference.reachabilityFence(funding_pubkey);
 441                 return ret;
 442         }
 443
 444         /**
 445          * Returns the witness required to satisfy and spend an anchor input.
 446          */
 447         public static byte[] build_anchor_input_witness(byte[] funding_key, byte[] funding_sig) {
 448                 byte[] ret = bindings.build_anchor_input_witness(InternalUtils.check_arr_len(funding_key, 33), InternalUtils.check_arr_len(funding_sig, 64));
 449                 Reference.reachabilityFence(funding_key);
 450                 Reference.reachabilityFence(funding_sig);
 451                 return ret;
 452         }
 453
 454         /**
 455          * Commitment transaction numbers which appear in the transactions themselves are XOR'd with a
 456          * shared secret first. This prevents on-chain observers from discovering how many commitment
 457          * transactions occurred in a channel before it was closed.
 458          *
 459          * This function gets the shared secret from relevant channel public keys and can be used to
 460          * \"decrypt\" the commitment transaction number given a commitment transaction on-chain.
 461          */
 462         public static long get_commitment_transaction_number_obscure_factor(byte[] broadcaster_payment_basepoint, byte[] countersignatory_payment_basepoint, boolean outbound_from_broadcaster) {
 463                 long ret = bindings.get_commitment_transaction_number_obscure_factor(InternalUtils.check_arr_len(broadcaster_payment_basepoint, 33), InternalUtils.check_arr_len(countersignatory_payment_basepoint, 33), outbound_from_broadcaster);
 464                 Reference.reachabilityFence(broadcaster_payment_basepoint);
 465                 Reference.reachabilityFence(countersignatory_payment_basepoint);
 466                 Reference.reachabilityFence(outbound_from_broadcaster);
 467                 return ret;
 468         }
 469
 470         /**
 471          * Read a NetworkUpdate from a byte array, created by NetworkUpdate_write
 472          */
 473         public static Result_COption_NetworkUpdateZDecodeErrorZ NetworkUpdate_read(byte[] ser) {
 474                 long ret = bindings.NetworkUpdate_read(ser);
 475                 Reference.reachabilityFence(ser);
 476                 if (ret >= 0 && ret <= 4096) { return null; }
 477                 Result_COption_NetworkUpdateZDecodeErrorZ ret_hu_conv = Result_COption_NetworkUpdateZDecodeErrorZ.constr_from_ptr(ret);
 478                 return ret_hu_conv;
 479         }
 480
 481         /**
 482          * Finds a route from us (payer) to the given target node (payee).
 483          *
 484          * If the payee provided features in their invoice, they should be provided via `params.payee`.
 485          * Without this, MPP will only be used if the payee's features are available in the network graph.
 486          *
 487          * Private routing paths between a public node and the target may be included in `params.payee`.
 488          *
 489          * If some channels aren't announced, it may be useful to fill in `first_hops` with the results
 490          * from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of these channels
 491          * from `network_graph` will be ignored, and only those in `first_hops` will be used.
 492          *
 493          * The fees on channels from us to the next hop are ignored as they are assumed to all be equal.
 494          * However, the enabled/disabled bit on such channels as well as the `htlc_minimum_msat` /
 495          * `htlc_maximum_msat` *are* checked as they may change based on the receiving node.
 496          *
 497          * # Note
 498          *
 499          * May be used to re-compute a [`Route`] when handling a [`Event::PaymentPathFailed`]. Any
 500          * adjustments to the [`NetworkGraph`] and channel scores should be made prior to calling this
 501          * function.
 502          *
 503          * # Panics
 504          *
 505          * Panics if first_hops contains channels without short_channel_ids;
 506          * [`ChannelManager::list_usable_channels`] will never include such channels.
 507          *
 508          * [`ChannelManager::list_usable_channels`]: crate::ln::channelmanager::ChannelManager::list_usable_channels
 509          * [`Event::PaymentPathFailed`]: crate::events::Event::PaymentPathFailed
 510          * [`NetworkGraph`]: crate::routing::gossip::NetworkGraph
 511          *
 512          * Note that first_hops (or a relevant inner pointer) may be NULL or all-0s to represent None
 513          */
 514         public static Result_RouteLightningErrorZ find_route(byte[] our_node_pubkey, org.ldk.structs.RouteParameters route_params, org.ldk.structs.NetworkGraph network_graph, @Nullable ChannelDetails[] first_hops, org.ldk.structs.Logger logger, org.ldk.structs.Score scorer, byte[] random_seed_bytes) {
 515                 long ret = bindings.find_route(InternalUtils.check_arr_len(our_node_pubkey, 33), route_params == null ? 0 : route_params.ptr, network_graph == null ? 0 : network_graph.ptr, first_hops != null ? Arrays.stream(first_hops).mapToLong(first_hops_conv_16 -> first_hops_conv_16 == null ? 0 : first_hops_conv_16.ptr).toArray() : null, logger.ptr, scorer.ptr, InternalUtils.check_arr_len(random_seed_bytes, 32));
 516                 Reference.reachabilityFence(our_node_pubkey);
 517                 Reference.reachabilityFence(route_params);
 518                 Reference.reachabilityFence(network_graph);
 519                 Reference.reachabilityFence(first_hops);
 520                 Reference.reachabilityFence(logger);
 521                 Reference.reachabilityFence(scorer);
 522                 Reference.reachabilityFence(random_seed_bytes);
 523                 if (ret >= 0 && ret <= 4096) { return null; }
 524                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 525                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(route_params); };
 526                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(network_graph); };
 527                 if (first_hops != null) { for (ChannelDetails first_hops_conv_16: first_hops) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(first_hops_conv_16); }; } };
 528                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 529                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(scorer); };
 530                 return ret_hu_conv;
 531         }
 532
 533         /**
 534          * Construct a route from us (payer) to the target node (payee) via the given hops (which should
 535          * exclude the payer, but include the payee). This may be useful, e.g., for probing the chosen path.
 536          *
 537          * Re-uses logic from `find_route`, so the restrictions described there also apply here.
 538          */
 539         public static Result_RouteLightningErrorZ build_route_from_hops(byte[] our_node_pubkey, byte[][] hops, org.ldk.structs.RouteParameters route_params, org.ldk.structs.NetworkGraph network_graph, org.ldk.structs.Logger logger, byte[] random_seed_bytes) {
 540                 long ret = bindings.build_route_from_hops(InternalUtils.check_arr_len(our_node_pubkey, 33), hops != null ? Arrays.stream(hops).map(hops_conv_8 -> InternalUtils.check_arr_len(hops_conv_8, 33)).toArray(byte[][]::new) : null, route_params == null ? 0 : route_params.ptr, network_graph == null ? 0 : network_graph.ptr, logger.ptr, InternalUtils.check_arr_len(random_seed_bytes, 32));
 541                 Reference.reachabilityFence(our_node_pubkey);
 542                 Reference.reachabilityFence(hops);
 543                 Reference.reachabilityFence(route_params);
 544                 Reference.reachabilityFence(network_graph);
 545                 Reference.reachabilityFence(logger);
 546                 Reference.reachabilityFence(random_seed_bytes);
 547                 if (ret >= 0 && ret <= 4096) { return null; }
 548                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 549                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(route_params); };
 550                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(network_graph); };
 551                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 552                 return ret_hu_conv;
 553         }
 554
 555         /**
 556          * Read a PathFailure from a byte array, created by PathFailure_write
 557          */
 558         public static Result_COption_PathFailureZDecodeErrorZ PathFailure_read(byte[] ser) {
 559                 long ret = bindings.PathFailure_read(ser);
 560                 Reference.reachabilityFence(ser);
 561                 if (ret >= 0 && ret <= 4096) { return null; }
 562                 Result_COption_PathFailureZDecodeErrorZ ret_hu_conv = Result_COption_PathFailureZDecodeErrorZ.constr_from_ptr(ret);
 563                 return ret_hu_conv;
 564         }
 565
 566         /**
 567          * Read a ClosureReason from a byte array, created by ClosureReason_write
 568          */
 569         public static Result_COption_ClosureReasonZDecodeErrorZ ClosureReason_read(byte[] ser) {
 570                 long ret = bindings.ClosureReason_read(ser);
 571                 Reference.reachabilityFence(ser);
 572                 if (ret >= 0 && ret <= 4096) { return null; }
 573                 Result_COption_ClosureReasonZDecodeErrorZ ret_hu_conv = Result_COption_ClosureReasonZDecodeErrorZ.constr_from_ptr(ret);
 574                 return ret_hu_conv;
 575         }
 576
 577         /**
 578          * Read a HTLCDestination from a byte array, created by HTLCDestination_write
 579          */
 580         public static Result_COption_HTLCDestinationZDecodeErrorZ HTLCDestination_read(byte[] ser) {
 581                 long ret = bindings.HTLCDestination_read(ser);
 582                 Reference.reachabilityFence(ser);
 583                 if (ret >= 0 && ret <= 4096) { return null; }
 584                 Result_COption_HTLCDestinationZDecodeErrorZ ret_hu_conv = Result_COption_HTLCDestinationZDecodeErrorZ.constr_from_ptr(ret);
 585                 return ret_hu_conv;
 586         }
 587
 588         /**
 589          * Read a Event from a byte array, created by Event_write
 590          */
 591         public static Result_COption_EventZDecodeErrorZ Event_read(byte[] ser) {
 592                 long ret = bindings.Event_read(ser);
 593                 Reference.reachabilityFence(ser);
 594                 if (ret >= 0 && ret <= 4096) { return null; }
 595                 Result_COption_EventZDecodeErrorZ ret_hu_conv = Result_COption_EventZDecodeErrorZ.constr_from_ptr(ret);
 596                 return ret_hu_conv;
 597         }
 598
 599         /**
 600          * Pays the given [`Invoice`], retrying if needed based on [`Retry`].
 601          *
 602          * [`Invoice::payment_hash`] is used as the [`PaymentId`], which ensures idempotency as long
 603          * as the payment is still pending. Once the payment completes or fails, you must ensure that
 604          * a second payment with the same [`PaymentHash`] is never sent.
 605          *
 606          * If you wish to use a different payment idempotency token, see [`pay_invoice_with_id`].
 607          */
 608         public static Result_PaymentIdPaymentErrorZ pay_invoice(org.ldk.structs.Invoice invoice, org.ldk.structs.Retry retry_strategy, org.ldk.structs.ChannelManager channelmanager) {
 609                 long ret = bindings.pay_invoice(invoice == null ? 0 : invoice.ptr, retry_strategy.ptr, channelmanager == null ? 0 : channelmanager.ptr);
 610                 Reference.reachabilityFence(invoice);
 611                 Reference.reachabilityFence(retry_strategy);
 612                 Reference.reachabilityFence(channelmanager);
 613                 if (ret >= 0 && ret <= 4096) { return null; }
 614                 Result_PaymentIdPaymentErrorZ ret_hu_conv = Result_PaymentIdPaymentErrorZ.constr_from_ptr(ret);
 615                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(invoice); };
 616                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(retry_strategy); };
 617                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 618                 return ret_hu_conv;
 619         }
 620
 621         /**
 622          * Pays the given [`Invoice`] with a custom idempotency key, retrying if needed based on [`Retry`].
 623          *
 624          * Note that idempotency is only guaranteed as long as the payment is still pending. Once the
 625          * payment completes or fails, no idempotency guarantees are made.
 626          *
 627          * You should ensure that the [`Invoice::payment_hash`] is unique and the same [`PaymentHash`]
 628          * has never been paid before.
 629          *
 630          * See [`pay_invoice`] for a variant which uses the [`PaymentHash`] for the idempotency token.
 631          */
 632         public static Result_NonePaymentErrorZ pay_invoice_with_id(org.ldk.structs.Invoice invoice, byte[] payment_id, org.ldk.structs.Retry retry_strategy, org.ldk.structs.ChannelManager channelmanager) {
 633                 long ret = bindings.pay_invoice_with_id(invoice == null ? 0 : invoice.ptr, InternalUtils.check_arr_len(payment_id, 32), retry_strategy.ptr, channelmanager == null ? 0 : channelmanager.ptr);
 634                 Reference.reachabilityFence(invoice);
 635                 Reference.reachabilityFence(payment_id);
 636                 Reference.reachabilityFence(retry_strategy);
 637                 Reference.reachabilityFence(channelmanager);
 638                 if (ret >= 0 && ret <= 4096) { return null; }
 639                 Result_NonePaymentErrorZ ret_hu_conv = Result_NonePaymentErrorZ.constr_from_ptr(ret);
 640                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(invoice); };
 641                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(retry_strategy); };
 642                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 643                 return ret_hu_conv;
 644         }
 645
 646         /**
 647          * Pays the given zero-value [`Invoice`] using the given amount, retrying if needed based on
 648          * [`Retry`].
 649          *
 650          * [`Invoice::payment_hash`] is used as the [`PaymentId`], which ensures idempotency as long
 651          * as the payment is still pending. Once the payment completes or fails, you must ensure that
 652          * a second payment with the same [`PaymentHash`] is never sent.
 653          *
 654          * If you wish to use a different payment idempotency token, see
 655          * [`pay_zero_value_invoice_with_id`].
 656          */
 657         public static Result_PaymentIdPaymentErrorZ pay_zero_value_invoice(org.ldk.structs.Invoice invoice, long amount_msats, org.ldk.structs.Retry retry_strategy, org.ldk.structs.ChannelManager channelmanager) {
 658                 long ret = bindings.pay_zero_value_invoice(invoice == null ? 0 : invoice.ptr, amount_msats, retry_strategy.ptr, channelmanager == null ? 0 : channelmanager.ptr);
 659                 Reference.reachabilityFence(invoice);
 660                 Reference.reachabilityFence(amount_msats);
 661                 Reference.reachabilityFence(retry_strategy);
 662                 Reference.reachabilityFence(channelmanager);
 663                 if (ret >= 0 && ret <= 4096) { return null; }
 664                 Result_PaymentIdPaymentErrorZ ret_hu_conv = Result_PaymentIdPaymentErrorZ.constr_from_ptr(ret);
 665                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(invoice); };
 666                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(retry_strategy); };
 667                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 668                 return ret_hu_conv;
 669         }
 670
 671         /**
 672          * Pays the given zero-value [`Invoice`] using the given amount and custom idempotency key,
 673          * , retrying if needed based on [`Retry`].
 674          *
 675          * Note that idempotency is only guaranteed as long as the payment is still pending. Once the
 676          * payment completes or fails, no idempotency guarantees are made.
 677          *
 678          * You should ensure that the [`Invoice::payment_hash`] is unique and the same [`PaymentHash`]
 679          * has never been paid before.
 680          *
 681          * See [`pay_zero_value_invoice`] for a variant which uses the [`PaymentHash`] for the
 682          * idempotency token.
 683          */
 684         public static Result_NonePaymentErrorZ pay_zero_value_invoice_with_id(org.ldk.structs.Invoice invoice, long amount_msats, byte[] payment_id, org.ldk.structs.Retry retry_strategy, org.ldk.structs.ChannelManager channelmanager) {
 685                 long ret = bindings.pay_zero_value_invoice_with_id(invoice == null ? 0 : invoice.ptr, amount_msats, InternalUtils.check_arr_len(payment_id, 32), retry_strategy.ptr, channelmanager == null ? 0 : channelmanager.ptr);
 686                 Reference.reachabilityFence(invoice);
 687                 Reference.reachabilityFence(amount_msats);
 688                 Reference.reachabilityFence(payment_id);
 689                 Reference.reachabilityFence(retry_strategy);
 690                 Reference.reachabilityFence(channelmanager);
 691                 if (ret >= 0 && ret <= 4096) { return null; }
 692                 Result_NonePaymentErrorZ ret_hu_conv = Result_NonePaymentErrorZ.constr_from_ptr(ret);
 693                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(invoice); };
 694                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(retry_strategy); };
 695                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 696                 return ret_hu_conv;
 697         }
 698
 699         /**
 700          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
 701          * See [`PhantomKeysManager`] for more information on phantom node payments.
 702          *
 703          * `phantom_route_hints` parameter:
 704          * Contains channel info for all nodes participating in the phantom invoice
 705          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
 706          * participating node
 707          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
 708          * updated when a channel becomes disabled or closes
 709          * Note that if too many channels are included in [`PhantomRouteHints::channels`], the invoice
 710          * may be too long for QR code scanning. To fix this, `PhantomRouteHints::channels` may be pared
 711          * down
 712          *
 713          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
 714          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
 715          * If `None` is provided for `payment_hash`, then one will be created.
 716          *
 717          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 718          * in excess of the current time.
 719          *
 720          * `duration_since_epoch` is the current time since epoch in seconds.
 721          *
 722          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
 723          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`] - 3.
 724          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
 725          * confirmations during routing.
 726          *
 727          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
 728          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
 729          * requirement).
 730          *
 731          * [`PhantomKeysManager`]: lightning::chain::keysinterface::PhantomKeysManager
 732          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
 733          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
 734          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
 735          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
 736          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
 737          *
 738          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 739          * available and the current time is supplied by the caller.
 740          *
 741          * Note that payment_hash (or a relevant inner pointer) may be NULL or all-0s to represent None
 742          */
 743         public static Result_InvoiceSignOrCreationErrorZ create_phantom_invoice(org.ldk.structs.Option_u64Z amt_msat, @Nullable byte[] payment_hash, java.lang.String description, int invoice_expiry_delta_secs, PhantomRouteHints[] phantom_route_hints, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.enums.Currency network, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta, long duration_since_epoch) {
 744                 long ret = bindings.create_phantom_invoice(amt_msat.ptr, InternalUtils.check_arr_len(payment_hash, 32), description, invoice_expiry_delta_secs, phantom_route_hints != null ? Arrays.stream(phantom_route_hints).mapToLong(phantom_route_hints_conv_19 -> phantom_route_hints_conv_19 == null ? 0 : phantom_route_hints_conv_19.ptr).toArray() : null, entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
 745                 Reference.reachabilityFence(amt_msat);
 746                 Reference.reachabilityFence(payment_hash);
 747                 Reference.reachabilityFence(description);
 748                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 749                 Reference.reachabilityFence(phantom_route_hints);
 750                 Reference.reachabilityFence(entropy_source);
 751                 Reference.reachabilityFence(node_signer);
 752                 Reference.reachabilityFence(logger);
 753                 Reference.reachabilityFence(network);
 754                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 755                 Reference.reachabilityFence(duration_since_epoch);
 756                 if (ret >= 0 && ret <= 4096) { return null; }
 757                 Result_InvoiceSignOrCreationErrorZ ret_hu_conv = Result_InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 758                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(amt_msat); };
 759                 for (PhantomRouteHints phantom_route_hints_conv_19: phantom_route_hints) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(phantom_route_hints_conv_19); }; };
 760                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(entropy_source); };
 761                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
 762                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 763                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 764                 return ret_hu_conv;
 765         }
 766
 767         /**
 768          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
 769          * See [`PhantomKeysManager`] for more information on phantom node payments.
 770          *
 771          * `phantom_route_hints` parameter:
 772          * Contains channel info for all nodes participating in the phantom invoice
 773          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
 774          * participating node
 775          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
 776          * updated when a channel becomes disabled or closes
 777          * Note that if too many channels are included in [`PhantomRouteHints::channels`], the invoice
 778          * may be too long for QR code scanning. To fix this, `PhantomRouteHints::channels` may be pared
 779          * down
 780          *
 781          * `description_hash` is a SHA-256 hash of the description text
 782          *
 783          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
 784          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
 785          * If `None` is provided for `payment_hash`, then one will be created.
 786          *
 787          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 788          * in excess of the current time.
 789          *
 790          * `duration_since_epoch` is the current time since epoch in seconds.
 791          *
 792          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
 793          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
 794          * requirement).
 795          *
 796          * [`PhantomKeysManager`]: lightning::chain::keysinterface::PhantomKeysManager
 797          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
 798          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
 799          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
 800          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
 801          *
 802          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 803          * available and the current time is supplied by the caller.
 804          *
 805          * Note that payment_hash (or a relevant inner pointer) may be NULL or all-0s to represent None
 806          */
 807         public static Result_InvoiceSignOrCreationErrorZ create_phantom_invoice_with_description_hash(org.ldk.structs.Option_u64Z amt_msat, @Nullable byte[] payment_hash, int invoice_expiry_delta_secs, org.ldk.structs.Sha256 description_hash, PhantomRouteHints[] phantom_route_hints, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.enums.Currency network, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta, long duration_since_epoch) {
 808                 long ret = bindings.create_phantom_invoice_with_description_hash(amt_msat.ptr, InternalUtils.check_arr_len(payment_hash, 32), invoice_expiry_delta_secs, description_hash == null ? 0 : description_hash.ptr, phantom_route_hints != null ? Arrays.stream(phantom_route_hints).mapToLong(phantom_route_hints_conv_19 -> phantom_route_hints_conv_19 == null ? 0 : phantom_route_hints_conv_19.ptr).toArray() : null, entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
 809                 Reference.reachabilityFence(amt_msat);
 810                 Reference.reachabilityFence(payment_hash);
 811                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 812                 Reference.reachabilityFence(description_hash);
 813                 Reference.reachabilityFence(phantom_route_hints);
 814                 Reference.reachabilityFence(entropy_source);
 815                 Reference.reachabilityFence(node_signer);
 816                 Reference.reachabilityFence(logger);
 817                 Reference.reachabilityFence(network);
 818                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 819                 Reference.reachabilityFence(duration_since_epoch);
 820                 if (ret >= 0 && ret <= 4096) { return null; }
 821                 Result_InvoiceSignOrCreationErrorZ ret_hu_conv = Result_InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 822                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(amt_msat); };
 823                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(description_hash); };
 824                 for (PhantomRouteHints phantom_route_hints_conv_19: phantom_route_hints) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(phantom_route_hints_conv_19); }; };
 825                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(entropy_source); };
 826                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
 827                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 828                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 829                 return ret_hu_conv;
 830         }
 831
 832         /**
 833          * Utility to construct an invoice. Generally, unless you want to do something like a custom
 834          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
 835          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
 836          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
 837          * that the payment secret is valid when the invoice is paid.
 838          *
 839          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 840          * in excess of the current time.
 841          *
 842          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
 843          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
 844          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
 845          * confirmations during routing.
 846          *
 847          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
 848          */
 849         public static Result_InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.enums.Currency network, org.ldk.structs.Option_u64Z amt_msat, java.lang.String description, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 850                 long ret = bindings.create_invoice_from_channelmanager(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
 851                 Reference.reachabilityFence(channelmanager);
 852                 Reference.reachabilityFence(node_signer);
 853                 Reference.reachabilityFence(logger);
 854                 Reference.reachabilityFence(network);
 855                 Reference.reachabilityFence(amt_msat);
 856                 Reference.reachabilityFence(description);
 857                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 858                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 859                 if (ret >= 0 && ret <= 4096) { return null; }
 860                 Result_InvoiceSignOrCreationErrorZ ret_hu_conv = Result_InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 861                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 862                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
 863                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 864                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(amt_msat); };
 865                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 866                 return ret_hu_conv;
 867         }
 868
 869         /**
 870          * Utility to construct an invoice. Generally, unless you want to do something like a custom
 871          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
 872          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
 873          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
 874          * that the payment secret is valid when the invoice is paid.
 875          * Use this variant if you want to pass the `description_hash` to the invoice.
 876          *
 877          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 878          * in excess of the current time.
 879          *
 880          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
 881          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
 882          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
 883          * confirmations during routing.
 884          *
 885          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
 886          */
 887         public static Result_InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_with_description_hash(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.enums.Currency network, org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Sha256 description_hash, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 888                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash == null ? 0 : description_hash.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
 889                 Reference.reachabilityFence(channelmanager);
 890                 Reference.reachabilityFence(node_signer);
 891                 Reference.reachabilityFence(logger);
 892                 Reference.reachabilityFence(network);
 893                 Reference.reachabilityFence(amt_msat);
 894                 Reference.reachabilityFence(description_hash);
 895                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 896                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 897                 if (ret >= 0 && ret <= 4096) { return null; }
 898                 Result_InvoiceSignOrCreationErrorZ ret_hu_conv = Result_InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 899                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 900                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
 901                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 902                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(amt_msat); };
 903                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(description_hash); };
 904                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 905                 return ret_hu_conv;
 906         }
 907
 908         /**
 909          * See [`create_invoice_from_channelmanager_with_description_hash`]
 910          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 911          * available and the current time is supplied by the caller.
 912          */
 913         public static Result_InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.enums.Currency network, org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Sha256 description_hash, long duration_since_epoch, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 914                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash == null ? 0 : description_hash.ptr, duration_since_epoch, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
 915                 Reference.reachabilityFence(channelmanager);
 916                 Reference.reachabilityFence(node_signer);
 917                 Reference.reachabilityFence(logger);
 918                 Reference.reachabilityFence(network);
 919                 Reference.reachabilityFence(amt_msat);
 920                 Reference.reachabilityFence(description_hash);
 921                 Reference.reachabilityFence(duration_since_epoch);
 922                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 923                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 924                 if (ret >= 0 && ret <= 4096) { return null; }
 925                 Result_InvoiceSignOrCreationErrorZ ret_hu_conv = Result_InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 926                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 927                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
 928                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 929                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(amt_msat); };
 930                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(description_hash); };
 931                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 932                 return ret_hu_conv;
 933         }
 934
 935         /**
 936          * See [`create_invoice_from_channelmanager`]
 937          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 938          * available and the current time is supplied by the caller.
 939          */
 940         public static Result_InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_and_duration_since_epoch(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.enums.Currency network, org.ldk.structs.Option_u64Z amt_msat, java.lang.String description, long duration_since_epoch, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 941                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description, duration_since_epoch, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
 942                 Reference.reachabilityFence(channelmanager);
 943                 Reference.reachabilityFence(node_signer);
 944                 Reference.reachabilityFence(logger);
 945                 Reference.reachabilityFence(network);
 946                 Reference.reachabilityFence(amt_msat);
 947                 Reference.reachabilityFence(description);
 948                 Reference.reachabilityFence(duration_since_epoch);
 949                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 950                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 951                 if (ret >= 0 && ret <= 4096) { return null; }
 952                 Result_InvoiceSignOrCreationErrorZ ret_hu_conv = Result_InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 953                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 954                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
 955                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 956                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(amt_msat); };
 957                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 958                 return ret_hu_conv;
 959         }
 960
 961         /**
 962          * See [`create_invoice_from_channelmanager_and_duration_since_epoch`]
 963          * This version allows for providing a custom [`PaymentHash`] for the invoice.
 964          * This may be useful if you're building an on-chain swap or involving another protocol where
 965          * the payment hash is also involved outside the scope of lightning.
 966          */
 967         public static Result_InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.enums.Currency network, org.ldk.structs.Option_u64Z amt_msat, java.lang.String description, long duration_since_epoch, int invoice_expiry_delta_secs, byte[] payment_hash, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 968                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description, duration_since_epoch, invoice_expiry_delta_secs, InternalUtils.check_arr_len(payment_hash, 32), min_final_cltv_expiry_delta.ptr);
 969                 Reference.reachabilityFence(channelmanager);
 970                 Reference.reachabilityFence(node_signer);
 971                 Reference.reachabilityFence(logger);
 972                 Reference.reachabilityFence(network);
 973                 Reference.reachabilityFence(amt_msat);
 974                 Reference.reachabilityFence(description);
 975                 Reference.reachabilityFence(duration_since_epoch);
 976                 Reference.reachabilityFence(invoice_expiry_delta_secs);
 977                 Reference.reachabilityFence(payment_hash);
 978                 Reference.reachabilityFence(min_final_cltv_expiry_delta);
 979                 if (ret >= 0 && ret <= 4096) { return null; }
 980                 Result_InvoiceSignOrCreationErrorZ ret_hu_conv = Result_InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 981                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(channelmanager); };
 982                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(node_signer); };
 983                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
 984                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(amt_msat); };
 985                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(min_final_cltv_expiry_delta); };
 986                 return ret_hu_conv;
 987         }
 988
 989 }