upgrade to whirlpool-client 0.23.30-early4 + extlibj 0.0.19-dsk3

build.gradle

@@ -395,25 +395,28 @@ extraJavaModuleInfo {
         requires('com.fasterxml.jackson.databind')
         requires('logback.classic')
         requires('org.json')
-        exports('com.sparrowwallet.nightjar')
         exports('com.samourai.http.client')
         exports('com.samourai.tor.client')
         exports('com.samourai.wallet.api.backend')
         exports('com.samourai.wallet.api.backend.beans')
         exports('com.samourai.wallet.hd')
-        exports('com.samourai.wallet.hd.java')
         exports('com.samourai.whirlpool.client.event')
         exports('com.samourai.whirlpool.client.wallet')
         exports('com.samourai.whirlpool.client.wallet.beans')
+        exports('com.samourai.whirlpool.client.wallet.data.dataSource')
+        exports('com.samourai.whirlpool.client.wallet.data.dataPersister')
         exports('com.samourai.whirlpool.client.whirlpool')
         exports('com.samourai.whirlpool.client.whirlpool.beans')
         exports('com.samourai.whirlpool.client.wallet.data.pool')
         exports('com.samourai.whirlpool.client.wallet.data.utxo')
+        exports('com.samourai.whirlpool.client.wallet.data.utxoConfig')
+        exports('com.samourai.whirlpool.client.wallet.data.supplier')
         exports('com.samourai.whirlpool.client.mix.listener')
         exports('com.samourai.whirlpool.protocol.beans')
         exports('com.samourai.whirlpool.protocol.rest')
         exports('com.samourai.whirlpool.client.tx0')
         exports('com.samourai.wallet.segwit.bech32')
+        exports('com.samourai.whirlpool.client.wallet.data.wallet')
         exports('com.samourai.whirlpool.client.wallet.data.minerFee')
         exports('com.samourai.whirlpool.client.wallet.data.walletState')
         exports('com.sparrowwallet.nightjar.http')

src/main/java/com/sparrowwallet/sparrow/AppServices.java

@@ -455,8 +455,8 @@ public class AppServices {
     public Whirlpool getWhirlpool(String walletId) {
         Whirlpool whirlpool = whirlpoolMap.get(walletId);
         if(whirlpool == null) {
-            HostAndPort torProxy = AppServices.isTorRunning() ? HostAndPort.fromParts("localhost", TorService.PROXY_PORT) : (Config.get().getProxyServer().isEmpty() || !Config.get().isUseProxy() ? null : HostAndPort.fromString(Config.get().getProxyServer()));
+            HostAndPort torProxy = AppServices.isTorRunning() ? HostAndPort.fromParts("localhost", TorService.PROXY_PORT) : (Config.get().getProxyServer() == null || Config.get().getProxyServer().isEmpty() || !Config.get().isUseProxy() ? null : HostAndPort.fromString(Config.get().getProxyServer()));
-            whirlpool = new Whirlpool(Network.get(), torProxy, Config.get().getScode(), 1, 15);
+            whirlpool = new Whirlpool(Network.get(), torProxy, Config.get().getScode(), 1);
             whirlpoolMap.put(walletId, whirlpool);
         }
 

src/main/java/com/sparrowwallet/sparrow/whirlpool/SparrowDataSource.java

@@ -1,9 +1,14 @@
 package com.sparrowwallet.sparrow.whirlpool;
 
-import com.samourai.wallet.api.backend.BackendApi;
-import com.samourai.wallet.api.backend.MinerFee;
 import com.samourai.wallet.api.backend.MinerFeeTarget;
-import com.samourai.wallet.api.backend.beans.*;
+import com.samourai.wallet.api.backend.beans.TxsResponse;
+import com.samourai.wallet.api.backend.beans.UnspentOutput;
+import com.samourai.wallet.api.backend.beans.WalletResponse;
+import com.samourai.wallet.hd.HD_Wallet;
+import com.samourai.whirlpool.client.wallet.WhirlpoolWalletConfig;
+import com.samourai.whirlpool.client.wallet.data.dataPersister.DataPersister;
+import com.samourai.whirlpool.client.wallet.data.dataSource.WalletResponseDataSource;
+import com.samourai.whirlpool.client.wallet.data.minerFee.MinerFeeSupplier;
 import com.sparrowwallet.drongo.ExtendedKey;
 import com.sparrowwallet.drongo.KeyPurpose;
 import com.sparrowwallet.drongo.Network;
@@ -21,88 +26,20 @@ import org.slf4j.LoggerFactory;
 
 import java.util.*;
 
-@SuppressWarnings("deprecation")
+public class SparrowDataSource extends WalletResponseDataSource {
-public class SparrowBackendApi extends BackendApi {
+    private static final Logger log = LoggerFactory.getLogger(SparrowDataSource.class);
-    private static final Logger log = LoggerFactory.getLogger(SparrowBackendApi.class);
-    private static final int FALLBACK_FEE_RATE = 75;
 
-    public SparrowBackendApi() {
+    public SparrowDataSource(
-        super(null, null);
+            WhirlpoolWalletConfig config,
+            HD_Wallet bip44w,
+            String walletIdentifier,
+            DataPersister dataPersister)
+            throws Exception {
+        super(config, bip44w, walletIdentifier, dataPersister);
     }
 
     @Override
-    public TxsResponse fetchTxs(String[] zpubs, int page, int count) throws Exception {
+    protected WalletResponse fetchWalletResponse() throws Exception {
-        List<TxsResponse.Tx> txes = new ArrayList<>();
-
-        for(String zpub : zpubs) {
-            Wallet wallet = getWallet(zpub);
-            if(wallet == null) {
-                log.debug("No wallet for " + zpub + " found");
-                continue;
-            }
-
-            for(BlockTransaction blockTransaction : wallet.getTransactions().values()) {
-                TxsResponse.Tx tx = new TxsResponse.Tx();
-                tx.block_height = blockTransaction.getHeight();
-                tx.hash = blockTransaction.getHashAsString();
-                tx.locktime = blockTransaction.getTransaction().getLocktime();
-                tx.time = blockTransaction.getDate().getTime();
-                tx.version = (int)blockTransaction.getTransaction().getVersion();
-
-                tx.inputs = new TxsResponse.TxInput[blockTransaction.getTransaction().getInputs().size()];
-                for(int i = 0; i < blockTransaction.getTransaction().getInputs().size(); i++) {
-                    TransactionInput txInput = blockTransaction.getTransaction().getInputs().get(i);
-                    tx.inputs[i] = new TxsResponse.TxInput();
-                    tx.inputs[i].vin = txInput.getIndex();
-                    tx.inputs[i].sequence = txInput.getSequenceNumber();
-                    tx.inputs[i].prev_out = new TxsResponse.TxOut();
-                    tx.inputs[i].prev_out.txid = txInput.getOutpoint().getHash().toString();
-                    tx.inputs[i].prev_out.vout = (int)txInput.getOutpoint().getIndex();
-
-                    BlockTransaction spentTransaction = wallet.getTransactions().get(txInput.getOutpoint().getHash());
-                    if(spentTransaction != null) {
-                        TransactionOutput spentOutput = spentTransaction.getTransaction().getOutputs().get((int)txInput.getOutpoint().getIndex());
-                        tx.inputs[i].prev_out.value = spentOutput.getValue();
-                        Address[] addresses = spentOutput.getScript().getToAddresses();
-                        if(addresses.length > 0) {
-                            tx.inputs[i].prev_out.addr = addresses[0].toString();
-                        }
-                    }
-                }
-
-                tx.out = new TxsResponse.TxOutput[blockTransaction.getTransaction().getOutputs().size()];
-                for(int i = 0; i < blockTransaction.getTransaction().getOutputs().size(); i++) {
-                    TransactionOutput txOutput = blockTransaction.getTransaction().getOutputs().get(i);
-                    tx.out[i].n = txOutput.getIndex();
-                    tx.out[i].value = txOutput.getValue();
-                    Address[] addresses = txOutput.getScript().getToAddresses();
-                    if(addresses.length > 0) {
-                        tx.out[i].addr = addresses[0].toString();
-                    }
-                }
-
-                txes.add(tx);
-            }
-        }
-
-        List<TxsResponse.Tx> pageTxes;
-        if(txes.size() < count) {
-            pageTxes = txes;
-        } else {
-            pageTxes = txes.subList(page * count, Math.min((page * count) + count, txes.size()));
-        }
-
-        TxsResponse txsResponse = new TxsResponse();
-        txsResponse.n_tx = txes.size();
-        txsResponse.page = page;
-        txsResponse.n_tx_page = pageTxes.size();
-        txsResponse.txs = pageTxes.toArray(new TxsResponse.Tx[0]);
-
-        return txsResponse;
-    }
-
-    @Override
-    public WalletResponse fetchWallet(String[] zpubs) throws Exception {
         WalletResponse walletResponse = new WalletResponse();
         walletResponse.wallet = new WalletResponse.Wallet();
 
@@ -113,6 +50,7 @@ public class SparrowBackendApi extends BackendApi {
         List<UnspentOutput> unspentOutputs = new ArrayList<>();
         int storedBlockHeight = 0;
 
+        String[] zpubs = getWalletSupplier().getPubs(true);
         for(String zpub : zpubs) {
             Wallet wallet = getWallet(zpub);
             if(wallet == null) {
@@ -197,22 +135,12 @@ public class SparrowBackendApi extends BackendApi {
 
         walletResponse.info.fees = new LinkedHashMap<>();
         for(MinerFeeTarget target : MinerFeeTarget.values()) {
-            walletResponse.info.fees.put(target.getValue(), AppServices.getTargetBlockFeeRates() == null ? FALLBACK_FEE_RATE : getMinimumFeeForTarget(Integer.parseInt(target.getValue())));
+            walletResponse.info.fees.put(target.getValue(), getMinerFeeSupplier().getFee(target));
         }
 
         return walletResponse;
     }
 
-    @Override
-    public MinerFee fetchMinerFee() throws Exception {
-        Map<String, Integer> fees = new LinkedHashMap<>();
-        for(MinerFeeTarget target : MinerFeeTarget.values()) {
-           fees.put(target.getValue(), AppServices.getTargetBlockFeeRates() == null ? FALLBACK_FEE_RATE : getMinimumFeeForTarget(Integer.parseInt(target.getValue())));
-        }
-
-        return new MinerFee(fees);
-    }
-
     @Override
     public void pushTx(String txHex) throws Exception {
         Transaction transaction = new Transaction(Utils.hexToBytes(txHex));
@@ -221,25 +149,79 @@ public class SparrowBackendApi extends BackendApi {
     }
 
     @Override
-    public boolean testConnectivity() {
+    public TxsResponse fetchTxs(String[] zpubs, int page, int count) throws Exception {
-        return AppServices.isConnected();
+        List<TxsResponse.Tx> txes = new ArrayList<>();
-    }
 
-    private Integer getMinimumFeeForTarget(int targetBlocks) {
+        for(String zpub : zpubs) {
-        List<Map.Entry<Integer, Double>> feeRates = new ArrayList<>(AppServices.getTargetBlockFeeRates().entrySet());
+            Wallet wallet = getWallet(zpub);
-        Collections.reverse(feeRates);
+            if(wallet == null) {
-        for(Map.Entry<Integer, Double> feeRate : feeRates) {
+                log.debug("No wallet for " + zpub + " found");
-            if(feeRate.getKey() <= targetBlocks) {
+                continue;
-                return feeRate.getValue().intValue();
+            }
+
+            for(BlockTransaction blockTransaction : wallet.getTransactions().values()) {
+                TxsResponse.Tx tx = new TxsResponse.Tx();
+                tx.block_height = blockTransaction.getHeight();
+                tx.hash = blockTransaction.getHashAsString();
+                tx.locktime = blockTransaction.getTransaction().getLocktime();
+                tx.time = blockTransaction.getDate().getTime();
+                tx.version = (int)blockTransaction.getTransaction().getVersion();
+
+                tx.inputs = new TxsResponse.TxInput[blockTransaction.getTransaction().getInputs().size()];
+                for(int i = 0; i < blockTransaction.getTransaction().getInputs().size(); i++) {
+                    TransactionInput txInput = blockTransaction.getTransaction().getInputs().get(i);
+                    tx.inputs[i] = new TxsResponse.TxInput();
+                    tx.inputs[i].vin = txInput.getIndex();
+                    tx.inputs[i].sequence = txInput.getSequenceNumber();
+                    tx.inputs[i].prev_out = new TxsResponse.TxOut();
+                    tx.inputs[i].prev_out.txid = txInput.getOutpoint().getHash().toString();
+                    tx.inputs[i].prev_out.vout = (int)txInput.getOutpoint().getIndex();
+
+                    BlockTransaction spentTransaction = wallet.getTransactions().get(txInput.getOutpoint().getHash());
+                    if(spentTransaction != null) {
+                        TransactionOutput spentOutput = spentTransaction.getTransaction().getOutputs().get((int)txInput.getOutpoint().getIndex());
+                        tx.inputs[i].prev_out.value = spentOutput.getValue();
+                        Address[] addresses = spentOutput.getScript().getToAddresses();
+                        if(addresses.length > 0) {
+                            tx.inputs[i].prev_out.addr = addresses[0].toString();
+                        }
+                    }
+                }
+
+                tx.out = new TxsResponse.TxOutput[blockTransaction.getTransaction().getOutputs().size()];
+                for(int i = 0; i < blockTransaction.getTransaction().getOutputs().size(); i++) {
+                    TransactionOutput txOutput = blockTransaction.getTransaction().getOutputs().get(i);
+                    tx.out[i].n = txOutput.getIndex();
+                    tx.out[i].value = txOutput.getValue();
+                    Address[] addresses = txOutput.getScript().getToAddresses();
+                    if(addresses.length > 0) {
+                        tx.out[i].addr = addresses[0].toString();
+                    }
+                }
+
+                txes.add(tx);
             }
         }
 
-        return feeRates.get(0).getValue().intValue();
+        List<TxsResponse.Tx> pageTxes;
+        if(txes.size() < count) {
+            pageTxes = txes;
+        } else {
+            pageTxes = txes.subList(page * count, Math.min((page * count) + count, txes.size()));
+        }
+
+        TxsResponse txsResponse = new TxsResponse();
+        txsResponse.n_tx = txes.size();
+        txsResponse.page = page;
+        txsResponse.n_tx_page = pageTxes.size();
+        txsResponse.txs = pageTxes.toArray(new TxsResponse.Tx[0]);
+
+        return txsResponse;
     }
 
     @Override
-    public void initBip84(String zpub) throws Exception {
+    public MinerFeeSupplier getMinerFeeSupplier() {
-        //nothing required
+        return SparrowMinerFeeSupplier.getInstance();
     }
 
     private Wallet getWallet(String zpub) {
@@ -254,24 +236,4 @@ public class SparrowBackendApi extends BackendApi {
                 .findFirst()
                 .orElse(null);
     }
-
-    @Override
-    public List<UnspentOutput> fetchUtxos(String zpub) throws Exception {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public List<UnspentOutput> fetchUtxos(String[] zpubs) throws Exception {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public Map<String, MultiAddrResponse.Address> fetchAddresses(String[] zpubs) throws Exception {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public MultiAddrResponse.Address fetchAddress(String zpub) throws Exception {
-        throw new UnsupportedOperationException();
-    }
 }

src/main/java/com/sparrowwallet/sparrow/whirlpool/SparrowMinerFeeSupplier.java

@@ -1,11 +1,46 @@
 package com.sparrowwallet.sparrow.whirlpool;
 
-import com.samourai.wallet.api.backend.MinerFee;
+import com.samourai.wallet.api.backend.MinerFeeTarget;
 import com.samourai.whirlpool.client.wallet.data.minerFee.MinerFeeSupplier;
+import com.sparrowwallet.sparrow.AppServices;
 
-public class SparrowMinerFeeSupplier extends MinerFeeSupplier {
+import java.util.ArrayList;
-    public SparrowMinerFeeSupplier(int feeMin, int feeMax, int feeFallback, MinerFee currentMinerFee) {
+import java.util.Collections;
-        super(feeMin, feeMax, feeFallback);
+import java.util.List;
-        setValue(currentMinerFee);
+import java.util.Map;
+
+public class SparrowMinerFeeSupplier implements MinerFeeSupplier {
+    private static final int FALLBACK_FEE_RATE = 75;
+
+    public static SparrowMinerFeeSupplier instance;
+
+    public static SparrowMinerFeeSupplier getInstance() {
+        if (instance == null) {
+            instance = new SparrowMinerFeeSupplier();
+        }
+        return instance;
     }
+
+    private SparrowMinerFeeSupplier() {
+    }
+
+    @Override
+    public int getFee(MinerFeeTarget feeTarget) {
+        if (AppServices.getTargetBlockFeeRates() == null) {
+            return FALLBACK_FEE_RATE;
+        }
+        return getMinimumFeeForTarget(Integer.parseInt(feeTarget.getValue()));
+    }
+
+    private Integer getMinimumFeeForTarget(int targetBlocks) {
+        List<Map.Entry<Integer, Double>> feeRates = new ArrayList<>(AppServices.getTargetBlockFeeRates().entrySet());
+        Collections.reverse(feeRates);
+        for(Map.Entry<Integer, Double> feeRate : feeRates) {
+            if(feeRate.getKey() <= targetBlocks) {
+                return feeRate.getValue().intValue();
+            }
+        }
+        return feeRates.get(0).getValue().intValue();
+    }
+
 }

src/main/java/com/sparrowwallet/sparrow/whirlpool/Whirlpool.java

@@ -3,17 +3,25 @@ package com.sparrowwallet.sparrow.whirlpool;
 import com.google.common.eventbus.Subscribe;
 import com.google.common.net.HostAndPort;
 import com.samourai.tor.client.TorClientService;
-import com.samourai.wallet.api.backend.BackendApi;
 import com.samourai.wallet.api.backend.beans.UnspentOutput;
 import com.samourai.wallet.hd.HD_Wallet;
-import com.samourai.wallet.hd.java.HD_WalletFactoryJava;
+import com.samourai.wallet.hd.HD_WalletFactoryGeneric;
-import com.samourai.whirlpool.client.event.*;
+import com.samourai.whirlpool.client.event.MixFailEvent;
+import com.samourai.whirlpool.client.event.MixSuccessEvent;
+import com.samourai.whirlpool.client.event.WalletStartEvent;
+import com.samourai.whirlpool.client.event.WalletStopEvent;
 import com.samourai.whirlpool.client.tx0.*;
 import com.samourai.whirlpool.client.wallet.WhirlpoolEventService;
 import com.samourai.whirlpool.client.wallet.WhirlpoolWallet;
 import com.samourai.whirlpool.client.wallet.WhirlpoolWalletConfig;
 import com.samourai.whirlpool.client.wallet.WhirlpoolWalletService;
-import com.samourai.whirlpool.client.wallet.beans.*;
+import com.samourai.whirlpool.client.wallet.beans.Tx0FeeTarget;
+import com.samourai.whirlpool.client.wallet.beans.WhirlpoolAccount;
+import com.samourai.whirlpool.client.wallet.beans.WhirlpoolServer;
+import com.samourai.whirlpool.client.wallet.beans.WhirlpoolUtxo;
+import com.samourai.whirlpool.client.wallet.data.dataPersister.DataPersisterFactory;
+import com.samourai.whirlpool.client.wallet.data.dataPersister.FileDataPersister;
+import com.samourai.whirlpool.client.wallet.data.dataSource.DataSourceFactory;
 import com.samourai.whirlpool.client.wallet.data.pool.PoolData;
 import com.samourai.whirlpool.client.wallet.data.utxo.UtxoSupplier;
 import com.samourai.whirlpool.client.whirlpool.ServerApi;
@@ -36,7 +44,9 @@ import javafx.concurrent.Task;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.*;
+import java.util.Collection;
+import java.util.List;
+import java.util.Objects;
 import java.util.stream.Collectors;
 
 public class Whirlpool {
@@ -51,26 +61,27 @@ public class Whirlpool {
     private final WhirlpoolWalletConfig config;
     private HD_Wallet hdWallet;
 
-    public Whirlpool(Network network, HostAndPort torProxy, String sCode, int maxClients, int clientDelay) {
+    public Whirlpool(Network network, HostAndPort torProxy, String sCode, int maxClients) {
         this.torProxy = torProxy;
         this.whirlpoolServer = WhirlpoolServer.valueOf(network.getName().toUpperCase());
         this.httpClientService = new JavaHttpClientService(torProxy);
         this.stompClientService = new JavaStompClientService(httpClientService);
         this.torClientService = new WhirlpoolTorClientService();
-        this.whirlpoolWalletService = new WhirlpoolWalletService();
+
-        this.config = computeWhirlpoolWalletConfig(sCode, maxClients, clientDelay);
+        DataPersisterFactory dataPersisterFactory = (config, bip44w, walletIdentifier) -> new FileDataPersister(config, bip44w, walletIdentifier);
+        DataSourceFactory dataSourceFactory = (config, bip44w, walletIdentifier, dataPersister) -> new SparrowDataSource(config, bip44w, walletIdentifier, dataPersister);
+        this.whirlpoolWalletService = new WhirlpoolWalletService(dataPersisterFactory, dataSourceFactory);
+        this.config = computeWhirlpoolWalletConfig(sCode, maxClients);
 
         WhirlpoolEventService.getInstance().register(this);
     }
 
-    private WhirlpoolWalletConfig computeWhirlpoolWalletConfig(String sCode, int maxClients, int clientDelay) {
+    private WhirlpoolWalletConfig computeWhirlpoolWalletConfig(String sCode, int maxClients) {
         boolean onion = (torProxy != null);
         String serverUrl = whirlpoolServer.getServerUrl(onion);
-
         ServerApi serverApi = new ServerApi(serverUrl, httpClientService);
-        BackendApi backendApi = new SparrowBackendApi();
 
-        WhirlpoolWalletConfig whirlpoolWalletConfig = new WhirlpoolWalletConfig(httpClientService, stompClientService, torClientService, serverApi, whirlpoolServer, false, backendApi);
+        WhirlpoolWalletConfig whirlpoolWalletConfig = new WhirlpoolWalletConfig(httpClientService, stompClientService, torClientService, serverApi, whirlpoolServer.getParams(), false);
         whirlpoolWalletConfig.setScode(sCode);
 
         return whirlpoolWalletConfig;
@@ -114,7 +125,7 @@ public class Whirlpool {
 
     private Tx0ParamService getTx0ParamService() {
         try {
-            SparrowMinerFeeSupplier minerFeeSupplier = new SparrowMinerFeeSupplier(config.getFeeMin(), config.getFeeMax(), config.getFeeFallback(), config.getBackendApi().fetchMinerFee());
+            SparrowMinerFeeSupplier minerFeeSupplier = SparrowMinerFeeSupplier.getInstance();
             return new Tx0ParamService(minerFeeSupplier, config);
         } catch(Exception e) {
             log.error("Error fetching miner fees", e);
@@ -134,17 +145,17 @@ public class Whirlpool {
             int purpose = scriptType.getDefaultDerivation().get(0).num();
             List<String> words = keystore.getSeed().getMnemonicCode();
             String passphrase = keystore.getSeed().getPassphrase().asString();
-            HD_WalletFactoryJava hdWalletFactory = HD_WalletFactoryJava.getInstance();
+            HD_WalletFactoryGeneric hdWalletFactory = HD_WalletFactoryGeneric.getInstance();
             byte[] seed = hdWalletFactory.computeSeedFromWords(words);
-            hdWallet = new HD_Wallet(purpose, words, whirlpoolServer, seed, passphrase, 1);
+            hdWallet = new HD_Wallet(purpose, words, config.getNetworkParameters(), seed, passphrase, 1);
         } catch(Exception e) {
             throw new IllegalStateException("Could not create Whirlpool HD wallet ", e);
         }
     }
 
     public WhirlpoolWallet getWhirlpoolWallet() throws WhirlpoolException {
-        if(whirlpoolWalletService.whirlpoolWallet() != null) {
+        if(whirlpoolWalletService.getWhirlpoolWalletOrNull() != null) {
-            return whirlpoolWalletService.whirlpoolWallet();
+            return whirlpoolWalletService.getWhirlpoolWalletOrNull();
         }
 
         if(hdWallet == null) {
@@ -167,11 +178,11 @@ public class Whirlpool {
     }
 
     public boolean isStarted() {
-        if(whirlpoolWalletService.whirlpoolWallet() == null) {
+        if(whirlpoolWalletService.getWhirlpoolWalletOrNull() == null) {
             return false;
         }
 
-        return whirlpoolWalletService.whirlpoolWallet().isStarted();
+        return whirlpoolWalletService.getWhirlpoolWalletOrNull().isStarted();
     }
 
     public void shutdown() {
@@ -226,7 +237,7 @@ public class Whirlpool {
 
     @Subscribe
     public void onMixFail(MixFailEvent e) {
-        log.info("Mix failed for utxo " + e.getWhirlpoolUtxo().getUtxo().tx_hash + ":" + e.getWhirlpoolUtxo().getUtxo().tx_output_n);
+        log.info("Mix failed for utxo " + e.getMixFail().getWhirlpoolUtxo().getUtxo().tx_hash + ":" + e.getMixFail().getWhirlpoolUtxo().getUtxo().tx_output_n);
     }
 
     @Subscribe