diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Config.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Config.java
index 98e0cbda9..744815f7a 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Config.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Config.java
@@ -17,256 +17,92 @@
  */
 package org.jackhuang.hmcl.setting;
 
-import com.google.gson.annotations.SerializedName;
-import org.jackhuang.hmcl.Launcher;
-import org.jackhuang.hmcl.util.JavaVersion;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.TreeMap;
 
-import java.util.*;
+import org.jackhuang.hmcl.Launcher;
+import com.google.gson.annotations.SerializedName;
+
+import javafx.beans.property.BooleanProperty;
+import javafx.beans.property.DoubleProperty;
+import javafx.beans.property.IntegerProperty;
+import javafx.beans.property.SimpleBooleanProperty;
+import javafx.beans.property.SimpleDoubleProperty;
+import javafx.beans.property.SimpleIntegerProperty;
+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.property.StringProperty;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.collections.ObservableMap;
+import javafx.collections.ObservableSet;
 
 public final class Config implements Cloneable {
 
     @SerializedName("last")
-    private String selectedProfile = "";
+    public final StringProperty selectedProfile = new SimpleStringProperty("");
 
     @SerializedName("backgroundType")
-    private int backgroundImageType = 0;
+    public final IntegerProperty backgroundImageType = new SimpleIntegerProperty(0);
 
     @SerializedName("bgpath")
-    private String backgroundImage = null;
+    public final StringProperty backgroundImage = new SimpleStringProperty();
 
     @SerializedName("commonpath")
-    private String commonDirectory = Launcher.MINECRAFT_DIRECTORY.getAbsolutePath();
+    public final StringProperty commonDirectory = new SimpleStringProperty(Launcher.MINECRAFT_DIRECTORY.getAbsolutePath());
 
     @SerializedName("hasProxy")
-    private boolean hasProxy = false;
+    public final BooleanProperty hasProxy = new SimpleBooleanProperty();
 
     @SerializedName("hasProxyAuth")
-    private boolean hasProxyAuth = false;
+    public final BooleanProperty hasProxyAuth = new SimpleBooleanProperty();
 
     @SerializedName("proxyType")
-    private int proxyType = 0;
+    public final IntegerProperty proxyType = new SimpleIntegerProperty();
 
     @SerializedName("proxyHost")
-    private String proxyHost = null;
+    public final StringProperty proxyHost = new SimpleStringProperty();
 
     @SerializedName("proxyPort")
-    private String proxyPort = null;
+    public final StringProperty proxyPort = new SimpleStringProperty();
 
     @SerializedName("proxyUserName")
-    private String proxyUser = null;
+    public final StringProperty proxyUser = new SimpleStringProperty();
 
     @SerializedName("proxyPassword")
-    private String proxyPass = null;
+    public final StringProperty proxyPass = new SimpleStringProperty();
 
     @SerializedName("theme")
-    private String theme = null;
-
-    @SerializedName("java")
-    private List<JavaVersion> java = null;
+    public final StringProperty theme = new SimpleStringProperty();
 
     @SerializedName("localization")
-    private String localization;
+    public final StringProperty localization = new SimpleStringProperty();
 
     @SerializedName("downloadtype")
-    private int downloadType = 0;
+    public final IntegerProperty downloadType = new SimpleIntegerProperty();
 
     @SerializedName("configurations")
-    private Map<String, Profile> configurations = new TreeMap<>();
+    public final ObservableMap<String, Profile> configurations = FXCollections.observableMap(new TreeMap<>());
 
     @SerializedName("accounts")
-    private List<Map<Object, Object>> accounts = new LinkedList<>();
+    public final ObservableList<Map<Object, Object>> accounts = FXCollections.observableArrayList();
 
     @SerializedName("selectedAccount")
-    private String selectedAccount = "";
+    public final StringProperty selectedAccount = new SimpleStringProperty("");
 
     @SerializedName("fontFamily")
-    private String fontFamily = "Consolas";
+    public final StringProperty fontFamily = new SimpleStringProperty("Consolas");
 
     @SerializedName("fontSize")
-    private double fontSize = 12;
+    public final DoubleProperty fontSize = new SimpleDoubleProperty(12);
 
     @SerializedName("logLines")
-    private int logLines = 100;
+    public final IntegerProperty logLines = new SimpleIntegerProperty(100);
 
     @SerializedName("authlibInjectorServerURLs")
-    private Set<String> authlibInjectorServerURLs = new HashSet<>();
-
-    public String getSelectedProfile() {
-        return selectedProfile;
-    }
-
-    public void setSelectedProfile(String selectedProfile) {
-        this.selectedProfile = selectedProfile;
-    }
-
-    public String getBackgroundImage() {
-        return backgroundImage;
-    }
-
-    public void setBackgroundImage(String backgroundImage) {
-        this.backgroundImage = backgroundImage;
-    }
-
-    public int getBackgroundImageType() {
-        return backgroundImageType;
-    }
-
-    public void setBackgroundImageType(int backgroundImageType) {
-        this.backgroundImageType = backgroundImageType;
-    }
-
-    public String getCommonDirectory() {
-        return commonDirectory;
-    }
-
-    public void setCommonDirectory(String commonDirectory) {
-        this.commonDirectory = commonDirectory;
-    }
-
-    public boolean isHasProxy() {
-        return hasProxy;
-    }
-
-    public void setHasProxy(boolean hasProxy) {
-        this.hasProxy = hasProxy;
-    }
-
-    public boolean isHasProxyAuth() {
-        return hasProxyAuth;
-    }
-
-    public void setHasProxyAuth(boolean hasProxyAuth) {
-        this.hasProxyAuth = hasProxyAuth;
-    }
-
-    public int getProxyType() {
-        return proxyType;
-    }
-
-    public void setProxyType(int proxyType) {
-        this.proxyType = proxyType;
-    }
-
-    public String getProxyHost() {
-        return proxyHost;
-    }
-
-    public void setProxyHost(String proxyHost) {
-        this.proxyHost = proxyHost;
-    }
-
-    public String getProxyPort() {
-        return proxyPort;
-    }
-
-    public void setProxyPort(String proxyPort) {
-        this.proxyPort = proxyPort;
-    }
-
-    public String getProxyUser() {
-        return proxyUser;
-    }
-
-    public void setProxyUser(String proxyUser) {
-        this.proxyUser = proxyUser;
-    }
-
-    public String getProxyPass() {
-        return proxyPass;
-    }
-
-    public void setProxyPass(String proxyPass) {
-        this.proxyPass = proxyPass;
-    }
-
-    public String getTheme() {
-        return theme;
-    }
-
-    public void setTheme(String theme) {
-        this.theme = theme;
-    }
-
-    public List<JavaVersion> getJava() {
-        return java;
-    }
-
-    public void setJava(List<JavaVersion> java) {
-        this.java = java;
-    }
-
-    public String getLocalization() {
-        return localization;
-    }
-
-    public void setLocalization(String localization) {
-        this.localization = localization;
-    }
-
-    public int getDownloadType() {
-        return downloadType;
-    }
-
-    public void setDownloadType(int downloadType) {
-        this.downloadType = downloadType;
-    }
-
-    public Map<String, Profile> getConfigurations() {
-        return configurations;
-    }
-
-    public void setConfigurations(Map<String, Profile> configurations) {
-        this.configurations = configurations;
-    }
-
-    public List<Map<Object, Object>> getAccounts() {
-        return accounts;
-    }
-
-    public void setAccounts(List<Map<Object, Object>> accounts) {
-        this.accounts = accounts;
-    }
-
-    public String getSelectedAccount() {
-        return selectedAccount;
-    }
-
-    public void setSelectedAccount(String selectedAccount) {
-        this.selectedAccount = selectedAccount;
-    }
-
-    public String getFontFamily() {
-        return fontFamily;
-    }
-
-    public void setFontFamily(String fontFamily) {
-        this.fontFamily = fontFamily;
-    }
-
-    public double getFontSize() {
-        return fontSize;
-    }
-
-    public void setFontSize(double fontSize) {
-        this.fontSize = fontSize;
-    }
-
-    public int getLogLines() {
-        return logLines;
-    }
-
-    public void setLogLines(int logLines) {
-        this.logLines = logLines;
-    }
-
-    public Set<String> getAuthlibInjectorServerURLs() {
-        return authlibInjectorServerURLs;
-    }
-
-    public void setAuthlibInjectorServerURLs(Set<String> authlibInjectorServerURLs) {
-        this.authlibInjectorServerURLs = authlibInjectorServerURLs;
-    }
+    public final ObservableSet<String> authlibInjectorServerURLs = FXCollections.observableSet(new HashSet<>());
 
+    @Override
     public Config clone() {
         return Settings.GSON.fromJson(Settings.GSON.toJson(this), Config.class);
     }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java
index 4c03b9e28..713ad792e 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java
@@ -22,7 +22,15 @@ import com.google.gson.GsonBuilder;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.StringProperty;
 import javafx.beans.value.ObservableValue;
+import javafx.collections.ObservableList;
+import javafx.collections.ObservableMap;
+import javafx.collections.ObservableSet;
 import javafx.scene.text.Font;
+
+import org.hildan.fxgson.creators.ObservableListCreator;
+import org.hildan.fxgson.creators.ObservableMapCreator;
+import org.hildan.fxgson.creators.ObservableSetCreator;
+import org.hildan.fxgson.factories.JavaFxPropertyTypeAdapterFactory;
 import org.jackhuang.hmcl.Launcher;
 import org.jackhuang.hmcl.auth.Account;
 import org.jackhuang.hmcl.auth.AccountFactory;
@@ -50,7 +58,12 @@ public class Settings {
             .registerTypeAdapter(VersionSetting.class, VersionSetting.Serializer.INSTANCE)
             .registerTypeAdapter(Profile.class, Profile.Serializer.INSTANCE)
             .registerTypeAdapter(File.class, FileTypeAdapter.INSTANCE)
-            .setPrettyPrinting().create();
+            .registerTypeAdapter(ObservableList.class, new ObservableListCreator())
+            .registerTypeAdapter(ObservableSet.class, new ObservableSetCreator())
+            .registerTypeAdapter(ObservableMap.class, new ObservableMapCreator())
+            .registerTypeAdapterFactory(new JavaFxPropertyTypeAdapterFactory(true, true))
+            .setPrettyPrinting()
+            .create();
 
     public static final String DEFAULT_PROFILE = "Default";
     public static final String HOME_PROFILE = "Home";
@@ -67,7 +80,7 @@ public class Settings {
     private Settings() {
         loadProxy();
 
-        for (Iterator<Map<Object, Object>> iterator = SETTINGS.getAccounts().iterator(); iterator.hasNext(); ) {
+        for (Iterator<Map<Object, Object>> iterator = SETTINGS.accounts.iterator(); iterator.hasNext();) {
             Map<Object, Object> settings = iterator.next();
             AccountFactory<?> factory = Accounts.ACCOUNT_FACTORY.get(tryCast(settings.get("type"), String.class).orElse(""));
             if (factory == null) {
@@ -88,7 +101,6 @@ public class Settings {
             accounts.put(Accounts.getAccountId(account), account);
         }
 
-        checkAuthlibInjectorServerURLs();
         checkAuthlibInjectorAccounts();
         checkProfileMap();
 
@@ -124,11 +136,11 @@ public class Settings {
 
     public void save() {
         try {
-            SETTINGS.getAccounts().clear();
+            SETTINGS.accounts.clear();
             for (Account account : accounts.values()) {
                 Map<Object, Object> storage = account.toStorage();
                 storage.put("type", Accounts.getAccountType(account));
-                SETTINGS.getAccounts().add(storage);
+                SETTINGS.accounts.add(storage);
             }
 
             FileUtils.writeText(SETTINGS_FILE, GSON.toJson(SETTINGS));
@@ -137,12 +149,12 @@ public class Settings {
         }
     }
 
-    private final StringProperty commonPath = new ImmediateStringProperty(this, "commonPath", SETTINGS.getCommonDirectory()) {
+    private final StringProperty commonPath = new ImmediateStringProperty(this, "commonPath", SETTINGS.commonDirectory.get()) {
         @Override
         public void invalidated() {
             super.invalidated();
 
-            SETTINGS.setCommonDirectory(get());
+            SETTINGS.commonDirectory.set(get());
             save();
         }
     };
@@ -159,7 +171,7 @@ public class Settings {
         this.commonPath.set(commonPath);
     }
 
-    private Locales.SupportedLocale locale = Locales.getLocaleByName(SETTINGS.getLocalization());
+    private Locales.SupportedLocale locale = Locales.getLocaleByName(SETTINGS.localization.get());
 
     public Locales.SupportedLocale getLocale() {
         return locale;
@@ -167,7 +179,7 @@ public class Settings {
 
     public void setLocale(Locales.SupportedLocale locale) {
         this.locale = locale;
-        SETTINGS.setLocalization(Locales.getNameByLocale(locale));
+        SETTINGS.localization.set(Locales.getNameByLocale(locale));
         save();
     }
 
@@ -177,7 +189,7 @@ public class Settings {
         return proxy;
     }
 
-    private Proxy.Type proxyType = Proxies.getProxyType(SETTINGS.getProxyType());
+    private Proxy.Type proxyType = Proxies.getProxyType(SETTINGS.proxyType.get());
 
     public Proxy.Type getProxyType() {
         return proxyType;
@@ -185,58 +197,62 @@ public class Settings {
 
     public void setProxyType(Proxy.Type proxyType) {
         this.proxyType = proxyType;
-        SETTINGS.setProxyType(Proxies.PROXIES.indexOf(proxyType));
+        SETTINGS.proxyType.set(Proxies.PROXIES.indexOf(proxyType));
         save();
         loadProxy();
     }
 
     public String getProxyHost() {
-        return SETTINGS.getProxyHost();
+        return SETTINGS.proxyHost.get();
     }
 
     public void setProxyHost(String proxyHost) {
-        SETTINGS.setProxyHost(proxyHost);
+        SETTINGS.proxyHost.set(proxyHost);
         save();
     }
 
     public String getProxyPort() {
-        return SETTINGS.getProxyPort();
+        return SETTINGS.proxyPort.get();
     }
 
     public void setProxyPort(String proxyPort) {
-        SETTINGS.setProxyPort(proxyPort);
+        SETTINGS.proxyPort.set(proxyPort);
         save();
     }
 
     public String getProxyUser() {
-        return SETTINGS.getProxyUser();
+        return SETTINGS.proxyUser.get();
     }
 
     public void setProxyUser(String proxyUser) {
-        SETTINGS.setProxyUser(proxyUser);
+        SETTINGS.proxyUser.set(proxyUser);
         save();
     }
 
     public String getProxyPass() {
-        return SETTINGS.getProxyPass();
+        return SETTINGS.proxyPass.get();
     }
 
     public void setProxyPass(String proxyPass) {
-        SETTINGS.setProxyPass(proxyPass);
+        SETTINGS.proxyPass.set(proxyPass);
         save();
     }
 
-    public boolean hasProxy() { return SETTINGS.isHasProxy(); }
+    public boolean hasProxy() {
+        return SETTINGS.hasProxy.get();
+    }
 
     public void setHasProxy(boolean hasProxy) {
-        SETTINGS.setHasProxy(hasProxy);
+        SETTINGS.hasProxy.set(hasProxy);
         save();
     }
 
-    public boolean hasProxyAuth() { return SETTINGS.isHasProxyAuth(); }
+    public boolean hasProxyAuth() {
+        return SETTINGS.hasProxyAuth.get();
+    }
 
     public void setHasProxyAuth(boolean hasProxyAuth) {
-        SETTINGS.setHasProxyAuth(hasProxyAuth);
+        SETTINGS.hasProxyAuth.set(hasProxyAuth);
         save();
     }
 
@@ -267,21 +283,21 @@ public class Settings {
     }
 
     public Font getFont() {
-        return Font.font(SETTINGS.getFontFamily(), SETTINGS.getFontSize());
+        return Font.font(SETTINGS.fontFamily.get(), SETTINGS.fontSize.get());
     }
 
     public void setFont(Font font) {
-        SETTINGS.setFontFamily(font.getFamily());
-        SETTINGS.setFontSize(font.getSize());
+        SETTINGS.fontFamily.set(font.getFamily());
+        SETTINGS.fontSize.set(font.getSize());
         save();
     }
 
     public int getLogLines() {
-        return Math.max(SETTINGS.getLogLines(), 100);
+        return Math.max(SETTINGS.logLines.get(), 100);
     }
 
     public void setLogLines(int logLines) {
-        SETTINGS.setLogLines(logLines);
+        SETTINGS.logLines.set(logLines);
         save();
     }
 
@@ -290,37 +306,26 @@ public class Settings {
      ****************************************/
 
     public Set<String> getAuthlibInjectorServerURLs() {
-        return SETTINGS.getAuthlibInjectorServerURLs();
+        return SETTINGS.authlibInjectorServerURLs;
     }
 
     public void removeAuthlibInjectorServerURL(String serverURL) {
-        checkAuthlibInjectorServerURLs();
-
-        SETTINGS.getAuthlibInjectorServerURLs().remove(serverURL);
+        SETTINGS.authlibInjectorServerURLs.remove(serverURL);
 
         checkAuthlibInjectorAccounts();
         save();
     }
 
     public void addAuthlibInjectorServerURL(String serverURL) {
-        checkAuthlibInjectorServerURLs();
-
-        SETTINGS.getAuthlibInjectorServerURLs().add(serverURL);
+        SETTINGS.authlibInjectorServerURLs.add(serverURL);
         save();
     }
 
-    private void checkAuthlibInjectorServerURLs() {
-        if (SETTINGS.getAuthlibInjectorServerURLs() == null) {
-            SETTINGS.setAuthlibInjectorServerURLs(new HashSet<>());
-            save();
-        }
-    }
-
     private void checkAuthlibInjectorAccounts() {
         for (Account account : getAccounts()) {
             if (account instanceof AuthlibInjectorAccount) {
                 AuthlibInjectorAccount injectorAccount = (AuthlibInjectorAccount) account;
-                if (!SETTINGS.getAuthlibInjectorServerURLs().contains(injectorAccount.getServerBaseURL()))
+                if (!SETTINGS.authlibInjectorServerURLs.contains(injectorAccount.getServerBaseURL()))
                     deleteAccount(account);
             }
         }
@@ -331,14 +336,14 @@ public class Settings {
      ****************************************/
 
     public DownloadProvider getDownloadProvider() {
-        return DownloadProviders.getDownloadProvider(SETTINGS.getDownloadType());
+        return DownloadProviders.getDownloadProvider(SETTINGS.downloadType.get());
     }
 
     public void setDownloadProvider(DownloadProvider downloadProvider) {
         int index = DownloadProviders.DOWNLOAD_PROVIDERS.indexOf(downloadProvider);
         if (index == -1)
             throw new IllegalArgumentException("Unknown download provider: " + downloadProvider);
-        SETTINGS.setDownloadType(index);
+        SETTINGS.downloadType.set(index);
         save();
     }
 
@@ -346,7 +351,7 @@ public class Settings {
      *               ACCOUNTS               *
      ****************************************/
 
-    private final ImmediateObjectProperty<Account> selectedAccount = new ImmediateObjectProperty<Account>(this, "selectedAccount", accounts.get(SETTINGS.getSelectedAccount())) {
+    private final ImmediateObjectProperty<Account> selectedAccount = new ImmediateObjectProperty<Account>(this, "selectedAccount", accounts.get(SETTINGS.selectedAccount.get())) {
         @Override
         public Account get() {
             Account a = super.get();
@@ -368,7 +373,7 @@ public class Settings {
         public void invalidated() {
             super.invalidated();
 
-            SETTINGS.setSelectedAccount(getValue() == null ? "" : Accounts.getAccountId(getValue()));
+            SETTINGS.selectedAccount.set(getValue() == null ? "" : Accounts.getAccountId(getValue()));
             save();
         }
     };
@@ -418,12 +423,12 @@ public class Settings {
      *              BACKGROUND              *
      ****************************************/
 
-    private final ImmediateStringProperty backgroundImage = new ImmediateStringProperty(this, "backgroundImage", SETTINGS.getBackgroundImage()) {
+    private final ImmediateStringProperty backgroundImage = new ImmediateStringProperty(this, "backgroundImage", SETTINGS.backgroundImage.get()) {
         @Override
         public void invalidated() {
             super.invalidated();
 
-            SETTINGS.setBackgroundImage(get());
+            SETTINGS.backgroundImage.set(get());
             save();
         }
     };
@@ -440,12 +445,12 @@ public class Settings {
         this.backgroundImage.set(backgroundImage);
     }
 
-    private final ImmediateObjectProperty<EnumBackgroundImage> backgroundImageType = new ImmediateObjectProperty<EnumBackgroundImage>(this, "backgroundImageType", EnumBackgroundImage.indexOf(SETTINGS.getBackgroundImageType())) {
+    private final ImmediateObjectProperty<EnumBackgroundImage> backgroundImageType = new ImmediateObjectProperty<EnumBackgroundImage>(this, "backgroundImageType", EnumBackgroundImage.indexOf(SETTINGS.backgroundImageType.get())) {
         @Override
         public void invalidated() {
             super.invalidated();
 
-            SETTINGS.setBackgroundImageType(get().ordinal());
+            SETTINGS.backgroundImageType.set(get().ordinal());
             save();
         }
     };
@@ -466,12 +471,12 @@ public class Settings {
      *                THEME                 *
      ****************************************/
 
-    private final ImmediateObjectProperty<Theme> theme = new ImmediateObjectProperty<Theme>(this, "theme", Theme.getTheme(SETTINGS.getTheme()).orElse(Theme.BLUE)) {
+    private final ImmediateObjectProperty<Theme> theme = new ImmediateObjectProperty<Theme>(this, "theme", Theme.getTheme(SETTINGS.theme.get()).orElse(Theme.BLUE)) {
         @Override
         public void invalidated() {
             super.invalidated();
 
-            SETTINGS.setTheme(get().getName().toLowerCase());
+            SETTINGS.theme.set(get().getName().toLowerCase());
             save();
         }
     };
@@ -495,19 +500,19 @@ public class Settings {
     public Profile getSelectedProfile() {
         checkProfileMap();
 
-        if (!hasProfile(SETTINGS.getSelectedProfile())) {
+        if (!hasProfile(SETTINGS.selectedProfile.get())) {
             getProfileMap().keySet().stream().findFirst().ifPresent(selectedProfile -> {
-                SETTINGS.setSelectedProfile(selectedProfile);
+                SETTINGS.selectedProfile.set(selectedProfile);
                 save();
             });
             Schedulers.computation().schedule(this::onProfileChanged);
         }
-        return getProfile(SETTINGS.getSelectedProfile());
+        return getProfile(SETTINGS.selectedProfile.get());
     }
 
     public void setSelectedProfile(Profile selectedProfile) {
-        if (hasProfile(selectedProfile.getName()) && !Objects.equals(selectedProfile.getName(), SETTINGS.getSelectedProfile())) {
-            SETTINGS.setSelectedProfile(selectedProfile.getName());
+        if (hasProfile(selectedProfile.getName()) && !Objects.equals(selectedProfile.getName(), SETTINGS.selectedProfile.get())) {
+            SETTINGS.selectedProfile.set(selectedProfile.getName());
             save();
             Schedulers.computation().schedule(this::onProfileChanged);
         }
@@ -525,7 +530,7 @@ public class Settings {
     }
 
     public Map<String, Profile> getProfileMap() {
-        return SETTINGS.getConfigurations();
+        return SETTINGS.configurations;
     }
 
     public Collection<Profile> getProfiles() {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
index 6d13755db..0b4316d57 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
@@ -82,17 +82,16 @@ public final class ExportWizardProvider implements WizardProvider {
                         try (ZipEngine zip = new ZipEngine(modpackFile)) {
                             Config config = Settings.INSTANCE.getRawConfig();
 
-                            config.setHasProxy(false);
-                            config.setSelectedProfile("");
-                            config.setCommonDirectory(null);
-                            config.setFontFamily("Consolas");
-                            config.setFontSize(12);
-                            config.setJava(null);
-                            config.setLocalization(null);
-                            config.setAccounts(null);
-                            config.setSelectedAccount("");
-                            config.setLogLines(100);
-                            config.setConfigurations(null);
+                            config.hasProxy.set(false);
+                            config.selectedProfile.set("");
+                            config.commonDirectory.set(null);
+                            config.fontFamily.set("Consolas");
+                            config.fontSize.set(12);
+                            config.localization.set(null);
+                            config.accounts.clear();
+                            config.selectedAccount.set("");
+                            config.logLines.set(100);
+                            config.configurations.clear();
 
                             zip.putTextFile(Settings.GSON.toJson(config), Settings.SETTINGS_FILE_NAME);
                             zip.putFile(tempModpack, "modpack.zip");