cancel whirlpool startup service when disconnecting

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

@@ -33,7 +33,6 @@ import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.event.WhirlpoolMixEvent;
 import com.sparrowwallet.sparrow.event.WhirlpoolMixSuccessEvent;
-import com.sparrowwallet.sparrow.io.Config;
 import com.sparrowwallet.sparrow.wallet.UtxoEntry;
 import com.sparrowwallet.sparrow.whirlpool.dataPersister.SparrowDataPersister;
 import com.sparrowwallet.sparrow.whirlpool.dataSource.SparrowDataSource;
@@ -46,7 +45,6 @@ import javafx.beans.property.SimpleBooleanProperty;
 import javafx.concurrent.ScheduledService;
 import javafx.concurrent.Service;
 import javafx.concurrent.Task;
-import javafx.util.Duration;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -363,6 +361,10 @@ public class Whirlpool {
         return startupService;
     }
 
+    public StartupService getStartupService() {
+        return startupService;
+    }
+
     private WalletUtxo getUtxo(WhirlpoolUtxo whirlpoolUtxo) {
         Wallet wallet = AppServices.get().getWallet(walletId);
         if(wallet != null) {

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

@@ -195,6 +195,8 @@ public class WhirlpoolServices {
 
     @Subscribe
     public void disconnection(DisconnectionEvent event) {
+        //Cancel any scheduled attempts to try reconnect
+        whirlpoolMap.values().stream().filter(whirlpool -> whirlpool.getStartupService() != null).forEach(whirlpool -> whirlpool.getStartupService().cancel());
         stopAllWhirlpool();
     }