upgrade to gradle 7.1, java 16, javafx 16

src/main/java/com/sparrowwallet/sparrow/io/IOUtils.java

@@ -90,7 +90,9 @@ public class IOUtils {
                         // if it is a subdirectory, we just return the directory name
                         entry = entry.substring(0, checkSubdir);
                     }
-                    result.add(entry);
+                    if(!entry.isEmpty()) {
+                        result.add(entry);
+                    }
                 }
             }
 

src/main/java/com/sparrowwallet/sparrow/net/ElectrumServer.java

@@ -1,7 +1,6 @@
 package com.sparrowwallet.sparrow.net;
 
 import com.github.arteam.simplejsonrpc.client.Transport;
-import com.google.common.collect.Iterables;
 import com.google.common.eventbus.Subscribe;
 import com.google.common.net.HostAndPort;
 import com.sparrowwallet.drongo.KeyPurpose;

src/main/java/com/sparrowwallet/sparrow/preferences/ServerPreferencesController.java

@@ -22,7 +22,6 @@ import javafx.stage.DirectoryChooser;
 import javafx.stage.FileChooser;
 import javafx.stage.Stage;
 import javafx.util.Duration;
-import net.freehaven.tor.control.TorControlError;
 import org.berndpruenster.netlayer.tor.Tor;
 import org.controlsfx.control.SegmentedButton;
 import org.controlsfx.glyphfont.Glyph;

src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java

@@ -19,7 +19,6 @@ import com.sparrowwallet.sparrow.io.Device;
 import com.sparrowwallet.sparrow.net.ElectrumServer;
 import com.sparrowwallet.sparrow.io.Storage;
 import com.sparrowwallet.sparrow.payjoin.Payjoin;
-import com.sparrowwallet.sparrow.payjoin.PayjoinReceiverException;
 import com.sparrowwallet.sparrow.wallet.Entry;
 import com.sparrowwallet.sparrow.wallet.HashIndexEntry;
 import com.sparrowwallet.sparrow.wallet.TransactionEntry;

src/main/java/module-info.java

@@ -1,6 +1,7 @@
 open module com.sparrowwallet.sparrow {
     requires java.desktop;
     requires java.net.http;
+    requires javafx.base;
     requires javafx.controls;
     requires javafx.fxml;
     requires javafx.graphics;
@@ -10,7 +11,6 @@ open module com.sparrowwallet.sparrow {
     requires tornadofx.controls;
     requires com.sparrowwallet.drongo;
     requires com.google.common;
-    requires flowless;
     requires com.google.zxing;
     requires com.google.zxing.javase;
     requires simple.json.rpc.client;
@@ -18,21 +18,22 @@ open module com.sparrowwallet.sparrow {
     requires simple.json.rpc.core;
     requires org.jetbrains.annotations;
     requires com.fasterxml.jackson.databind;
-    requires webcam.capture;
     requires netlayer.jpms;
-    requires hummingbird;
-    requires centerdevice.nsmenufx;
-    requires jcommander;
     requires org.slf4j;
-    requires bwt.jni;
-    requires jtorctl;
-    requires javacsv;
-    requires jul.to.slf4j;
-    requires bridj;
     requires com.google.gson;
     requires org.jdbi.v3.core;
     requires org.jdbi.v3.sqlobject;
     requires org.flywaydb.core;
     requires com.zaxxer.hikari;
     requires com.h2database;
+    requires com.sparrowwallet.hummingbird;
+    requires org.fxmisc.flowless;
+    requires com.github.sarxos.webcam.capture;
+    requires centerdevice.nsmenufx;
+    requires com.github.JesusMcCloud.jtorctl;
+    requires com.beust.jcommander;
+    requires org.slf4j.jul.to.slf4j;
+    requires net.sourceforge.javacsv;
+    requires com.nativelibs4java.bridj;
+    requires org.reactfx.reactfx;
 }