Merge branch 'develop' into feature/custom-shortening-threshold

2026-05-18 18:51:26 +00:00 · 2023-07-03 16:22:43 +02:00
parent 894d0528df 168b9ef096
commit 7bf2de6339
83 changed files with 1267 additions and 1090 deletions
--- a/src/main/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -5,6 +5,7 @@ import org.cryptomator.common.locationpresets.DropboxWindowsLocationPresetsProvi
 import org.cryptomator.common.locationpresets.GoogleDriveLocationPresetsProvider;
 import org.cryptomator.common.locationpresets.ICloudMacLocationPresetsProvider;
 import org.cryptomator.common.locationpresets.ICloudWindowsLocationPresetsProvider;
+import org.cryptomator.common.locationpresets.LeitzcloudLocationPresetsProvider;
 import org.cryptomator.common.locationpresets.LocationPresetsProvider;
 import org.cryptomator.common.locationpresets.MegaLocationPresetsProvider;
 import org.cryptomator.common.locationpresets.OneDriveLinuxLocationPresetsProvider;
@@ -37,7 +38,7 @@ open module org.cryptomator.desktop {
 	requires ch.qos.logback.core;
 	requires com.auth0.jwt;
 	requires com.google.common;
-	requires com.google.gson;
+	requires com.fasterxml.jackson.databind;
 	requires com.nimbusds.jose.jwt;
 	requires com.nulabinc.zxcvbn;
 	requires com.tobiasdiez.easybind;
@@ -53,11 +54,12 @@ open module org.cryptomator.desktop {

 	provides TrayMenuController with AwtTrayMenuController;
 	provides Configurator with LogbackConfiguratorFactory;
-	provides LocationPresetsProvider with DropboxMacLocationPresetsProvider, //
-			DropboxWindowsLocationPresetsProvider, DropboxLinuxLocationPresetsProvider, //
-			ICloudMacLocationPresetsProvider, ICloudWindowsLocationPresetsProvider, //
+	provides LocationPresetsProvider with //
+			DropboxWindowsLocationPresetsProvider, DropboxMacLocationPresetsProvider, DropboxLinuxLocationPresetsProvider, //
 			GoogleDriveLocationPresetsProvider, //
-			PCloudLocationPresetsProvider, MegaLocationPresetsProvider, //
-			OneDriveLinuxLocationPresetsProvider, OneDriveWindowsLocationPresetsProvider, //
-			OneDriveMacLocationPresetsProvider;
+			ICloudWindowsLocationPresetsProvider, ICloudMacLocationPresetsProvider, //
+			LeitzcloudLocationPresetsProvider, //
+			MegaLocationPresetsProvider, //
+			OneDriveWindowsLocationPresetsProvider, OneDriveMacLocationPresetsProvider, OneDriveLinuxLocationPresetsProvider, //
+			PCloudLocationPresetsProvider;
 }
--- a/src/main/java/org/cryptomator/common/CommonsModule.java
+++ b/src/main/java/org/cryptomator/common/CommonsModule.java
@@ -139,9 +139,9 @@ public abstract class CommonsModule {
 	@Provides
 	@Singleton
 	static ObservableValue<InetSocketAddress> provideServerSocketAddressBinding(Settings settings) {
-		return settings.port().map(port -> {
+		return settings.port.map(port -> {
 			String host = SystemUtils.IS_OS_WINDOWS ? "127.0.0.1" : "localhost";
-			return InetSocketAddress.createUnresolved(host, settings.port().intValue());
+			return InetSocketAddress.createUnresolved(host, settings.port.intValue());
 		});
 	}

--- a/src/main/java/org/cryptomator/common/Environment.java
+++ b/src/main/java/org/cryptomator/common/Environment.java
@@ -18,7 +18,6 @@ import java.util.stream.StreamSupport;
 public class Environment {

 	private static final Logger LOG = LoggerFactory.getLogger(Environment.class);
-	private static final Path RELATIVE_HOME_DIR = Paths.get("~");
 	private static final char PATH_LIST_SEP = ':';
 	private static final int DEFAULT_MIN_PW_LENGTH = 8;
 	private static final String SETTINGS_PATH_PROP_NAME = "cryptomator.settingsPath";
@@ -80,7 +79,7 @@ public class Environment {
 		return getPaths(P12_PATH_PROP_NAME);
 	}

-	public Stream<Path> ipcSocketPath() {
+	public Stream<Path> getIpcSocketPath() {
 		return getPaths(IPC_SOCKET_PATH_PROP_NAME);
 	}

@@ -89,7 +88,7 @@ public class Environment {
 	}

 	public Optional<Path> getLogDir() {
-		return getPath(LOG_DIR_PROP_NAME).map(this::replaceHomeDir);
+		return getPath(LOG_DIR_PROP_NAME);
 	}

 	public Optional<String> getLoopbackAlias() {
@@ -97,11 +96,11 @@ public class Environment {
 	}

 	public Optional<Path> getPluginDir() {
-		return getPath(PLUGIN_DIR_PROP_NAME).map(this::replaceHomeDir);
+		return getPath(PLUGIN_DIR_PROP_NAME);
 	}

 	public Optional<Path> getMountPointsDir() {
-		return getPath(MOUNTPOINT_DIR_PROP_NAME).map(this::replaceHomeDir);
+		return getPath(MOUNTPOINT_DIR_PROP_NAME);
 	}

 	/**
@@ -131,22 +130,9 @@ public class Environment {
 	}

 	// visible for testing
-	public Path getHomeDir() {
-		return getPath("user.home").orElseThrow();
-	}
-
-	// visible for testing
-	public Stream<Path> getPaths(String propertyName) {
+	Stream<Path> getPaths(String propertyName) {
 		Stream<String> rawSettingsPaths = getRawList(propertyName, PATH_LIST_SEP);
-		return rawSettingsPaths.filter(Predicate.not(Strings::isNullOrEmpty)).map(Paths::get).map(this::replaceHomeDir);
-	}
-
-	private Path replaceHomeDir(Path path) {
-		if (path.startsWith(RELATIVE_HOME_DIR)) {
-			return getHomeDir().resolve(RELATIVE_HOME_DIR.relativize(path));
-		} else {
-			return path;
-		}
+		return rawSettingsPaths.filter(Predicate.not(Strings::isNullOrEmpty)).map(Path::of);
 	}

 	private Stream<String> getRawList(String propertyName, char separator) {
--- a/src/main/java/org/cryptomator/common/LicenseHolder.java
+++ b/src/main/java/org/cryptomator/common/LicenseHolder.java
@@ -30,7 +30,7 @@ public class LicenseHolder {
 		this.licenseSubject = validJwtClaims.map(DecodedJWT::getSubject);
 		this.validLicenseProperty = validJwtClaims.isNotNull();

-		Optional<DecodedJWT> claims = licenseChecker.check(settings.licenseKey().get());
+		Optional<DecodedJWT> claims = licenseChecker.check(settings.licenseKey.get());
 		validJwtClaims.set(claims.orElse(null));
 	}

@@ -38,7 +38,7 @@ public class LicenseHolder {
 		Optional<DecodedJWT> claims = licenseChecker.check(licenseKey);
 		validJwtClaims.set(claims.orElse(null));
 		if (claims.isPresent()) {
-			settings.licenseKey().set(licenseKey);
+			settings.licenseKey.set(licenseKey);
 			return true;
 		} else {
 			return false;
--- a/src/main/java/org/cryptomator/common/PropertiesDecorator.java
+++ b/src/main/java/org/cryptomator/common/PropertiesDecorator.java
@@ -0,0 +1,171 @@
+package org.cryptomator.common;
+
+import org.jetbrains.annotations.Nullable;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.io.PrintWriter;
+import java.io.Reader;
+import java.io.Writer;
+import java.nio.charset.Charset;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.InvalidPropertiesFormatException;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.function.BiConsumer;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+class PropertiesDecorator extends Properties {
+
+	protected final Properties delegate;
+
+	PropertiesDecorator(Properties delegate) {
+		this.delegate = delegate;
+	}
+
+	@Override
+	public String getProperty(String key) {return delegate.getProperty(key);}
+
+	@Override
+	public String getProperty(String key, String defaultValue) {return delegate.getProperty(key, defaultValue);}
+
+	@Override
+	public synchronized Object setProperty(String key, String value) {
+		return delegate.setProperty(key, value);
+	}
+
+	@Override
+	public synchronized void load(Reader reader) throws IOException {delegate.load(reader);}
+
+	@Override
+	public synchronized void load(InputStream inStream) throws IOException {delegate.load(inStream);}
+
+	@Override
+	public void store(Writer writer, String comments) throws IOException {delegate.store(writer, comments);}
+
+	@Override
+	public void store(OutputStream out, @Nullable String comments) throws IOException {delegate.store(out, comments);}
+
+	@Override
+	public synchronized void loadFromXML(InputStream in) throws IOException, InvalidPropertiesFormatException {delegate.loadFromXML(in);}
+
+	@Override
+	public void storeToXML(OutputStream os, String comment) throws IOException {delegate.storeToXML(os, comment);}
+
+	@Override
+	public void storeToXML(OutputStream os, String comment, String encoding) throws IOException {delegate.storeToXML(os, comment, encoding);}
+
+	@Override
+	public void storeToXML(OutputStream os, String comment, Charset charset) throws IOException {delegate.storeToXML(os, comment, charset);}
+
+	@Override
+	public Enumeration<?> propertyNames() {return delegate.propertyNames();}
+
+	@Override
+	public Set<String> stringPropertyNames() {return delegate.stringPropertyNames();}
+
+	@Override
+	public void list(PrintStream out) {delegate.list(out);}
+
+	@Override
+	public void list(PrintWriter out) {delegate.list(out);}
+
+	@Override
+	public int size() {return delegate.size();}
+
+	@Override
+	public boolean isEmpty() {return delegate.isEmpty();}
+
+	@Override
+	public Enumeration<Object> keys() {return delegate.keys();}
+
+	@Override
+	public Enumeration<Object> elements() {return delegate.elements();}
+
+	@Override
+	public boolean contains(Object value) {return delegate.contains(value);}
+
+	@Override
+	public boolean containsValue(Object value) {return delegate.containsValue(value);}
+
+	@Override
+	public boolean containsKey(Object key) {return delegate.containsKey(key);}
+
+	@Override
+	public Object get(Object key) {return delegate.get(key);}
+
+	@Override
+	public synchronized Object put(Object key, Object value) {return delegate.put(key, value);}
+
+	@Override
+	public synchronized Object remove(Object key) {return delegate.remove(key);}
+
+	@Override
+	public synchronized void putAll(Map<?, ?> t) {delegate.putAll(t);}
+
+	@Override
+	public synchronized void clear() {delegate.clear();}
+
+	@Override
+	public synchronized String toString() {return delegate.toString();}
+
+	@Override
+	public Set<Object> keySet() {return delegate.keySet();}
+
+	@Override
+	public Collection<Object> values() {return delegate.values();}
+
+	@Override
+	public Set<Map.Entry<Object, Object>> entrySet() {return delegate.entrySet();}
+
+	@Override
+	public synchronized boolean equals(Object o) {return delegate.equals(o);}
+
+	@Override
+	public synchronized int hashCode() {return delegate.hashCode();}
+
+	@Override
+	public Object getOrDefault(Object key, Object defaultValue) {return delegate.getOrDefault(key, defaultValue);}
+
+	@Override
+	public synchronized void forEach(BiConsumer<? super Object, ? super Object> action) {delegate.forEach(action);}
+
+	@Override
+	public synchronized void replaceAll(BiFunction<? super Object, ? super Object, ?> function) {delegate.replaceAll(function);}
+
+	@Override
+	public synchronized Object putIfAbsent(Object key, Object value) {return delegate.putIfAbsent(key, value);}
+
+	@Override
+	public synchronized boolean remove(Object key, Object value) {return delegate.remove(key, value);}
+
+	@Override
+	public synchronized boolean replace(Object key, Object oldValue, Object newValue) {return delegate.replace(key, oldValue, newValue);}
+
+	@Override
+	public synchronized Object replace(Object key, Object value) {return delegate.replace(key, value);}
+
+	@Override
+	public synchronized Object computeIfAbsent(Object key, Function<? super Object, ?> mappingFunction) {return delegate.computeIfAbsent(key, mappingFunction);}
+
+	@Override
+	public synchronized Object computeIfPresent(Object key, BiFunction<? super Object, ? super Object, ?> remappingFunction) {return delegate.computeIfPresent(key, remappingFunction);}
+
+	@Override
+	public synchronized Object compute(Object key, BiFunction<? super Object, ? super Object, ?> remappingFunction) {return delegate.compute(key, remappingFunction);}
+
+	@Override
+	public synchronized Object merge(Object key, Object value, BiFunction<? super Object, ? super Object, ?> remappingFunction) {return delegate.merge(key, value, remappingFunction);}
+
+	@Override
+	public synchronized Object clone() {
+		var delegateClone = (Properties) delegate.clone();
+		return new PropertiesDecorator(delegateClone);
+	}
+
+}
--- a/src/main/java/org/cryptomator/common/SubstitutingProperties.java
+++ b/src/main/java/org/cryptomator/common/SubstitutingProperties.java
@@ -0,0 +1,70 @@
+package org.cryptomator.common;
+
+import org.jetbrains.annotations.VisibleForTesting;
+import org.slf4j.LoggerFactory;
+
+import java.util.Map;
+import java.util.Properties;
+import java.util.regex.Pattern;
+
+public class SubstitutingProperties extends PropertiesDecorator {
+
+	private static final Pattern TEMPLATE = Pattern.compile("@\\{(\\w+)}");
+
+	private final Map<String, String> env;
+
+	public SubstitutingProperties(Properties props, Map<String, String> systemEnvironment) {
+		super(props);
+		this.env = systemEnvironment;
+	}
+
+	@Override
+	public String getProperty(String key) {
+		var value = delegate.getProperty(key);
+		if (key.startsWith("cryptomator.") && value != null) {
+			return process(value);
+		} else {
+			return value;
+		}
+	}
+
+	@Override
+	public String getProperty(String key, String defaultValue) {
+		var result = getProperty(key);
+		return result != null ? result : defaultValue;
+	}
+
+	@VisibleForTesting
+	String process(String value) {
+		return TEMPLATE.matcher(value).replaceAll(match -> //
+				switch (match.group(1)) {
+					case "appdir" -> resolveFrom("APPDIR", Source.ENV);
+					case "appdata" -> resolveFrom("APPDATA", Source.ENV);
+					case "localappdata" -> resolveFrom("LOCALAPPDATA", Source.ENV);
+					case "userhome" -> resolveFrom("user.home", Source.PROPS);
+					default -> {
+						LoggerFactory.getLogger(SubstitutingProperties.class).warn("Unknown variable {} in property value {}.", match.group(), value);
+						yield match.group();
+					}
+				});
+	}
+
+	private String resolveFrom(String key, Source src) {
+		var val = switch (src) {
+			case ENV -> env.get(key);
+			case PROPS -> delegate.getProperty(key);
+		};
+		if (val == null) {
+			LoggerFactory.getLogger(SubstitutingProperties.class).warn("Variable {} used for substitution not found in {}. Replaced with empty string.", key, src);
+			return "";
+		} else {
+			return val.replace("\\", "\\\\");
+		}
+	}
+
+	private enum Source {
+		ENV,
+		PROPS;
+	}
+
+}
--- a/src/main/java/org/cryptomator/common/keychain/KeychainModule.java
+++ b/src/main/java/org/cryptomator/common/keychain/KeychainModule.java
@@ -23,14 +23,14 @@ public class KeychainModule {
 	@Singleton
 	static ObjectExpression<KeychainAccessProvider> provideKeychainAccessProvider(Settings settings, List<KeychainAccessProvider> providers) {
 		return Bindings.createObjectBinding(() -> {
-			if (!settings.useKeychain().get()) {
+			if (!settings.useKeychain.get()) {
 				return null;
 			}
-			var selectedProviderClass = settings.keychainProvider().get();
+			var selectedProviderClass = settings.keychainProvider.get();
 			var selectedProvider = providers.stream().filter(provider -> provider.getClass().getName().equals(selectedProviderClass)).findAny();
 			var fallbackProvider = providers.stream().findFirst().orElse(null);
 			return selectedProvider.orElse(fallbackProvider);
-		}, settings.keychainProvider(), settings.useKeychain());
+		}, settings.keychainProvider, settings.useKeychain);
 	}

 }
--- a/src/main/java/org/cryptomator/common/locationpresets/GoogleDriveLocationPresetsProvider.java
+++ b/src/main/java/org/cryptomator/common/locationpresets/GoogleDriveLocationPresetsProvider.java
@@ -5,6 +5,8 @@ import org.cryptomator.integrations.common.OperatingSystem;

 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.List;
 import java.util.stream.Stream;

 import static org.cryptomator.integrations.common.OperatingSystem.Value.MAC;
@@ -15,23 +17,25 @@ import static org.cryptomator.integrations.common.OperatingSystem.Value.WINDOWS;
@CheckAvailability
 public final class GoogleDriveLocationPresetsProvider implements LocationPresetsProvider {

-	private static final Path LOCATION1 = LocationPresetsProvider.resolveLocation("~/GoogleDrive");
-	private static final Path LOCATION2 = LocationPresetsProvider.resolveLocation("~/GoogleDrive/My Drive");
-
+	private static final List<Path> LOCATIONS = Arrays.asList( //
+			LocationPresetsProvider.resolveLocation("~/GoogleDrive/My Drive"), //
+			LocationPresetsProvider.resolveLocation("~/Google Drive/My Drive"), //
+			LocationPresetsProvider.resolveLocation("~/GoogleDrive"), //
+			LocationPresetsProvider.resolveLocation("~/Google Drive") //
+	);

 	@CheckAvailability
 	public static boolean isPresent() {
-		return Files.isDirectory(LOCATION1) || Files.isDirectory(LOCATION2);
+		return LOCATIONS.stream().anyMatch(Files::isDirectory);
 	}

 	@Override
 	public Stream<LocationPreset> getLocations() {
-		if(Files.isDirectory(LOCATION1)) {
-			return Stream.of(new LocationPreset("Google Drive", LOCATION1));
-		} else if(Files.isDirectory(LOCATION2)) {
-			return Stream.of(new LocationPreset("Google Drive", LOCATION2));
-		} else {
-			return Stream.of();
-		}
+		return LOCATIONS.stream() //
+				.filter(Files::isDirectory) //
+				.map(location -> new LocationPreset("Google Drive", location)) //
+				.findFirst() //
+				.stream();
 	}
+
 }
--- a/src/main/java/org/cryptomator/common/locationpresets/LeitzcloudLocationPresetsProvider.java
+++ b/src/main/java/org/cryptomator/common/locationpresets/LeitzcloudLocationPresetsProvider.java
@@ -0,0 +1,30 @@
+package org.cryptomator.common.locationpresets;
+
+import org.cryptomator.integrations.common.CheckAvailability;
+import org.cryptomator.integrations.common.OperatingSystem;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.stream.Stream;
+
+import static org.cryptomator.integrations.common.OperatingSystem.Value.MAC;
+import static org.cryptomator.integrations.common.OperatingSystem.Value.WINDOWS;
+
+@OperatingSystem(WINDOWS)
+@OperatingSystem(MAC)
+@CheckAvailability
+public final class LeitzcloudLocationPresetsProvider implements LocationPresetsProvider {
+
+	private static final Path LOCATION = LocationPresetsProvider.resolveLocation("~/leitzcloud");
+
+	@CheckAvailability
+	public static boolean isPresent() {
+		return Files.isDirectory(LOCATION);
+	}
+
+	@Override
+	public Stream<LocationPreset> getLocations() {
+		return Stream.of(new LocationPreset("leitzcloud", LOCATION));
+	}
+
+}
--- a/src/main/java/org/cryptomator/common/locationpresets/PCloudLocationPresetsProvider.java
+++ b/src/main/java/org/cryptomator/common/locationpresets/PCloudLocationPresetsProvider.java
@@ -5,6 +5,8 @@ import org.cryptomator.integrations.common.OperatingSystem;

 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.List;
 import java.util.stream.Stream;

 import static org.cryptomator.integrations.common.OperatingSystem.Value.MAC;
@@ -15,16 +17,23 @@ import static org.cryptomator.integrations.common.OperatingSystem.Value.WINDOWS;
@CheckAvailability
 public final class PCloudLocationPresetsProvider implements LocationPresetsProvider {

-
-	private static final Path LOCATION = LocationPresetsProvider.resolveLocation("~/pCloudDrive");
+	private static final List<Path> LOCATIONS = Arrays.asList( //
+			LocationPresetsProvider.resolveLocation("~/pCloudDrive"), //
+			LocationPresetsProvider.resolveLocation("~/pCloud Drive") //
+	);

 	@CheckAvailability
 	public static boolean isPresent() {
-		return Files.isDirectory(LOCATION);
+		return LOCATIONS.stream().anyMatch(Files::isDirectory);
 	}

 	@Override
 	public Stream<LocationPreset> getLocations() {
-		return Stream.of(new LocationPreset("pCloud", LOCATION));
+		return LOCATIONS.stream() //
+				.filter(Files::isDirectory) //
+				.map(location -> new LocationPreset("pCloud", location)) //
+				.findFirst() //
+				.stream();
 	}
+
 }
--- a/src/main/java/org/cryptomator/common/mount/MountModule.java
+++ b/src/main/java/org/cryptomator/common/mount/MountModule.java
@@ -37,7 +37,7 @@ public class MountModule {
 	static ObservableValue<ActualMountService> provideMountService(Settings settings, List<MountService> serviceImpls, @Named("FUPFMS") AtomicReference<MountService> fupfms) {
 		var fallbackProvider = serviceImpls.stream().findFirst().orElse(null);

-		var observableMountService = ObservableUtil.mapWithDefault(settings.mountService(), //
+		var observableMountService = ObservableUtil.mapWithDefault(settings.mountService, //
 				desiredServiceImpl -> { //
 					var serviceFromSettings = serviceImpls.stream().filter(serviceImpl -> serviceImpl.getClass().getName().equals(desiredServiceImpl)).findAny(); //
 					var targetedService = serviceFromSettings.orElse(fallbackProvider);
--- a/src/main/java/org/cryptomator/common/mount/MountPointInUseException.java
+++ b/src/main/java/org/cryptomator/common/mount/MountPointInUseException.java
@@ -0,0 +1,8 @@
+package org.cryptomator.common.mount;
+
+public class MountPointInUseException extends IllegalMountPointException {
+
+	public MountPointInUseException(String msg) {
+		super(msg);
+	}
+}
--- a/src/main/java/org/cryptomator/common/mount/Mounter.java
+++ b/src/main/java/org/cryptomator/common/mount/Mounter.java
@@ -54,19 +54,19 @@ public class Mounter {
 				switch (capability) {
 					case FILE_SYSTEM_NAME -> builder.setFileSystemName("cryptoFs");
 					case LOOPBACK_PORT ->
-							builder.setLoopbackPort(settings.port().get()); //TODO: move port from settings to vaultsettings (see https://github.com/cryptomator/cryptomator/tree/feature/mount-setting-per-vault)
+							builder.setLoopbackPort(settings.port.get()); //TODO: move port from settings to vaultsettings (see https://github.com/cryptomator/cryptomator/tree/feature/mount-setting-per-vault)
 					case LOOPBACK_HOST_NAME -> env.getLoopbackAlias().ifPresent(builder::setLoopbackHostName);
-					case READ_ONLY -> builder.setReadOnly(vaultSettings.usesReadOnlyMode().get());
+					case READ_ONLY -> builder.setReadOnly(vaultSettings.usesReadOnlyMode.get());
 					case MOUNT_FLAGS -> {
-						var mountFlags = vaultSettings.mountFlags().get();
+						var mountFlags = vaultSettings.mountFlags.get();
 						if (mountFlags == null || mountFlags.isBlank()) {
 							builder.setMountFlags(service.getDefaultMountFlags());
 						} else {
 							builder.setMountFlags(mountFlags);
 						}
 					}
-					case VOLUME_ID -> builder.setVolumeId(vaultSettings.getId());
-					case VOLUME_NAME -> builder.setVolumeName(vaultSettings.mountName().get());
+					case VOLUME_ID -> builder.setVolumeId(vaultSettings.id);
+					case VOLUME_NAME -> builder.setVolumeName(vaultSettings.mountName.get());
 				}
 			}

@@ -75,7 +75,7 @@ public class Mounter {

 		private Runnable prepareMountPoint() throws IOException {
 			Runnable cleanup = () -> {};
-			var userChosenMountPoint = vaultSettings.getMountPoint();
+			var userChosenMountPoint = vaultSettings.mountPoint.get();
 			var defaultMountPointBase = env.getMountPointsDir().orElseThrow();
 			var canMountToDriveLetter = service.hasCapability(MOUNT_AS_DRIVE_LETTER);
 			var canMountToParent = service.hasCapability(MOUNT_WITHIN_EXISTING_PARENT);
@@ -91,13 +91,17 @@ public class Mounter {
 					Files.createDirectories(defaultMountPointBase);
 					builder.setMountpoint(defaultMountPointBase);
 				} else if (canMountToDir) {
-					var mountPoint = defaultMountPointBase.resolve(vaultSettings.mountName().get());
+					var mountPoint = defaultMountPointBase.resolve(vaultSettings.mountName.get());
 					Files.createDirectories(mountPoint);
 					builder.setMountpoint(mountPoint);
 				}
 			} else {
 				var mpIsDriveLetter = userChosenMountPoint.toString().matches("[A-Z]:\\\\");
-				if (!mpIsDriveLetter && canMountToParent && !canMountToDir) {
+				if (mpIsDriveLetter) {
+					if (driveLetters.getOccupied().contains(userChosenMountPoint)) {
+						throw new MountPointInUseException(userChosenMountPoint.toString());
+					}
+				} else if (canMountToParent && !canMountToDir) {
 					MountWithinParentUtil.prepareParentNoMountPoint(userChosenMountPoint);
 					cleanup = () -> {
 						MountWithinParentUtil.cleanup(userChosenMountPoint);
--- a/src/main/java/org/cryptomator/common/settings/Settings.java
+++ b/src/main/java/org/cryptomator/common/settings/Settings.java
@@ -10,6 +10,8 @@ package org.cryptomator.common.settings;

 import org.apache.commons.lang3.SystemUtils;
 import org.cryptomator.common.Environment;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;

 import javafx.beans.Observable;
 import javafx.beans.property.BooleanProperty;
@@ -27,59 +29,85 @@ import java.util.function.Consumer;

 public class Settings {

-	public static final int MIN_PORT = 1024;
-	public static final int MAX_PORT = 65535;
-	public static final boolean DEFAULT_ASKED_FOR_UPDATE_CHECK = false;
-	public static final boolean DEFAULT_CHECK_FOR_UPDATES = false;
-	public static final boolean DEFAULT_START_HIDDEN = false;
-	public static final boolean DEFAULT_AUTO_CLOSE_VAULTS = false;
-	public static final boolean DEFAULT_USE_KEYCHAIN = true;
-	public static final int DEFAULT_PORT = 42427;
-	public static final int DEFAULT_NUM_TRAY_NOTIFICATIONS = 3;
-	public static final boolean DEFAULT_DEBUG_MODE = false;
-	public static final UiTheme DEFAULT_THEME = UiTheme.LIGHT;
+	private static final Logger LOG = LoggerFactory.getLogger(Settings.class);
+
+	static final boolean DEFAULT_ASKED_FOR_UPDATE_CHECK = false;
+	static final boolean DEFAULT_CHECK_FOR_UPDATES = false;
+	static final boolean DEFAULT_START_HIDDEN = false;
+	static final boolean DEFAULT_AUTO_CLOSE_VAULTS = false;
+	static final boolean DEFAULT_USE_KEYCHAIN = true;
+	static final int DEFAULT_PORT = 42427;
+	static final int DEFAULT_NUM_TRAY_NOTIFICATIONS = 3;
+	static final boolean DEFAULT_DEBUG_MODE = false;
+	static final UiTheme DEFAULT_THEME = UiTheme.LIGHT;
 	@Deprecated // to be changed to "whatever is available" eventually
-	public static final String DEFAULT_KEYCHAIN_PROVIDER = SystemUtils.IS_OS_WINDOWS ? "org.cryptomator.windows.keychain.WindowsProtectedKeychainAccess" : SystemUtils.IS_OS_MAC ? "org.cryptomator.macos.keychain.MacSystemKeychainAccess" : "org.cryptomator.linux.keychain.SecretServiceKeychainAccess";
-	public static final NodeOrientation DEFAULT_USER_INTERFACE_ORIENTATION = NodeOrientation.LEFT_TO_RIGHT;
-	public static final String DEFAULT_LICENSE_KEY = "";
-	public static final boolean DEFAULT_SHOW_MINIMIZE_BUTTON = false;
-	public static final String DEFAULT_DISPLAY_CONFIGURATION = "";
-	public static final String DEFAULT_LANGUAGE = null;
-
-
-	private final ObservableList<VaultSettings> directories = FXCollections.observableArrayList(VaultSettings::observables);
-	private final BooleanProperty askedForUpdateCheck = new SimpleBooleanProperty(DEFAULT_ASKED_FOR_UPDATE_CHECK);
-	private final BooleanProperty checkForUpdates = new SimpleBooleanProperty(DEFAULT_CHECK_FOR_UPDATES);
-	private final BooleanProperty startHidden = new SimpleBooleanProperty(DEFAULT_START_HIDDEN);
-	private final BooleanProperty autoCloseVaults = new SimpleBooleanProperty(DEFAULT_AUTO_CLOSE_VAULTS);
-	private final BooleanProperty useKeychain = new SimpleBooleanProperty(DEFAULT_USE_KEYCHAIN);
-	private final IntegerProperty port = new SimpleIntegerProperty(DEFAULT_PORT);
-	private final IntegerProperty numTrayNotifications = new SimpleIntegerProperty(DEFAULT_NUM_TRAY_NOTIFICATIONS);
-	private final BooleanProperty debugMode = new SimpleBooleanProperty(DEFAULT_DEBUG_MODE);
-	private final ObjectProperty<UiTheme> theme = new SimpleObjectProperty<>(DEFAULT_THEME);
-	private final ObjectProperty<String> keychainProvider = new SimpleObjectProperty<>(DEFAULT_KEYCHAIN_PROVIDER);
-	private final ObjectProperty<NodeOrientation> userInterfaceOrientation = new SimpleObjectProperty<>(DEFAULT_USER_INTERFACE_ORIENTATION);
-	private final StringProperty licenseKey = new SimpleStringProperty(DEFAULT_LICENSE_KEY);
-	private final BooleanProperty showMinimizeButton = new SimpleBooleanProperty(DEFAULT_SHOW_MINIMIZE_BUTTON);
-	private final BooleanProperty showTrayIcon;
-	private final IntegerProperty windowXPosition = new SimpleIntegerProperty();
-	private final IntegerProperty windowYPosition = new SimpleIntegerProperty();
-	private final IntegerProperty windowWidth = new SimpleIntegerProperty();
-	private final IntegerProperty windowHeight = new SimpleIntegerProperty();
-	private final ObjectProperty<String> displayConfiguration = new SimpleObjectProperty<>(DEFAULT_DISPLAY_CONFIGURATION);
-	private final StringProperty language = new SimpleStringProperty(DEFAULT_LANGUAGE);
-
-
-	private final StringProperty mountService = new SimpleStringProperty();
+	static final String DEFAULT_KEYCHAIN_PROVIDER = SystemUtils.IS_OS_WINDOWS ? "org.cryptomator.windows.keychain.WindowsProtectedKeychainAccess" : SystemUtils.IS_OS_MAC ? "org.cryptomator.macos.keychain.MacSystemKeychainAccess" : "org.cryptomator.linux.keychain.SecretServiceKeychainAccess";
+	static final String DEFAULT_USER_INTERFACE_ORIENTATION = NodeOrientation.LEFT_TO_RIGHT.name();
+	static final boolean DEFAULT_SHOW_MINIMIZE_BUTTON = false;

+	public final ObservableList<VaultSettings> directories;
+	public final BooleanProperty askedForUpdateCheck;
+	public final BooleanProperty checkForUpdates;
+	public final BooleanProperty startHidden;
+	public final BooleanProperty autoCloseVaults;
+	public final BooleanProperty useKeychain;
+	public final IntegerProperty port;
+	public final IntegerProperty numTrayNotifications;
+	public final BooleanProperty debugMode;
+	public final ObjectProperty<UiTheme> theme;
+	public final StringProperty keychainProvider;
+	public final ObjectProperty<NodeOrientation> userInterfaceOrientation;
+	public final StringProperty licenseKey;
+	public final BooleanProperty showMinimizeButton;
+	public final BooleanProperty showTrayIcon;
+	public final IntegerProperty windowXPosition;
+	public final IntegerProperty windowYPosition;
+	public final IntegerProperty windowWidth;
+	public final IntegerProperty windowHeight;
+	public final StringProperty displayConfiguration;
+	public final StringProperty language;
+	public final StringProperty mountService;

 	private Consumer<Settings> saveCmd;

+	public static Settings create(Environment env) {
+		var defaults = new SettingsJson();
+		defaults.showTrayIcon = env.showTrayIcon();
+		return new Settings(defaults);
+	}
+
 	/**
-	 * Package-private constructor; use {@link SettingsProvider}.
+	 * Recreate settings from json
+	 *
+	 * @param json The parsed settings.json
 	 */
-	Settings(Environment env) {
-		this.showTrayIcon = new SimpleBooleanProperty(env.showTrayIcon());
+	Settings(SettingsJson json) {
+		this.directories = FXCollections.observableArrayList(VaultSettings::observables);
+		this.askedForUpdateCheck = new SimpleBooleanProperty(this, "askedForUpdateCheck", json.askedForUpdateCheck);
+		this.checkForUpdates = new SimpleBooleanProperty(this, "checkForUpdates", json.checkForUpdatesEnabled);
+		this.startHidden = new SimpleBooleanProperty(this, "startHidden", json.startHidden);
+		this.autoCloseVaults = new SimpleBooleanProperty(this, "autoCloseVaults", json.autoCloseVaults);
+		this.useKeychain = new SimpleBooleanProperty(this, "useKeychain", json.useKeychain);
+		this.port = new SimpleIntegerProperty(this, "webDavPort", json.port);
+		this.numTrayNotifications = new SimpleIntegerProperty(this, "numTrayNotifications", json.numTrayNotifications);
+		this.debugMode = new SimpleBooleanProperty(this, "debugMode", json.debugMode);
+		this.theme = new SimpleObjectProperty<>(this, "theme", json.theme);
+		this.keychainProvider = new SimpleStringProperty(this, "keychainProvider", json.keychainProvider);
+		this.userInterfaceOrientation = new SimpleObjectProperty<>(this, "userInterfaceOrientation", parseEnum(json.uiOrientation, NodeOrientation.class, NodeOrientation.LEFT_TO_RIGHT));
+		this.licenseKey = new SimpleStringProperty(this, "licenseKey", json.licenseKey);
+		this.showMinimizeButton = new SimpleBooleanProperty(this, "showMinimizeButton", json.showMinimizeButton);
+		this.showTrayIcon = new SimpleBooleanProperty(this, "showTrayIcon", json.showTrayIcon);
+		this.windowXPosition = new SimpleIntegerProperty(this, "windowXPosition", json.windowXPosition);
+		this.windowYPosition = new SimpleIntegerProperty(this, "windowYPosition", json.windowYPosition);
+		this.windowWidth = new SimpleIntegerProperty(this, "windowWidth", json.windowWidth);
+		this.windowHeight = new SimpleIntegerProperty(this, "windowHeight", json.windowHeight);
+		this.displayConfiguration = new SimpleStringProperty(this, "displayConfiguration", json.displayConfiguration);
+		this.language = new SimpleStringProperty(this, "language", json.language);
+		this.mountService = new SimpleStringProperty(this, "mountService", json.mountService);
+
+		this.directories.addAll(json.directories.stream().map(VaultSettings::new).toList());
+
+		migrateLegacySettings(json);

 		directories.addListener(this::somethingChanged);
 		askedForUpdateCheck.addListener(this::somethingChanged);
@@ -105,6 +133,72 @@ public class Settings {
 		mountService.addListener(this::somethingChanged);
 	}

+	@SuppressWarnings("deprecation")
+	private void migrateLegacySettings(SettingsJson json) {
+		// implicit migration of 1.6.x legacy setting "preferredVolumeImpl":
+		if (this.mountService.get() == null && json.preferredVolumeImpl != null) {
+			this.mountService.set(switch (json.preferredVolumeImpl) {
+				case "Dokany" -> "org.cryptomator.frontend.dokany.mount.DokanyMountProvider";
+				case "FUSE" -> {
+					if (SystemUtils.IS_OS_WINDOWS) {
+						yield "org.cryptomator.frontend.fuse.mount.WinFspNetworkMountProvider";
+					} else if (SystemUtils.IS_OS_MAC) {
+						yield "org.cryptomator.frontend.fuse.mount.MacFuseMountProvider";
+					} else {
+						yield "org.cryptomator.frontend.fuse.mount.LinuxFuseMountProvider";
+					}
+				}
+				default -> {
+					if (SystemUtils.IS_OS_WINDOWS) {
+						yield "org.cryptomator.frontend.webdav.mount.WindowsMounter";
+					} else if (SystemUtils.IS_OS_MAC) {
+						yield "org.cryptomator.frontend.webdav.mount.MacAppleScriptMounter";
+					} else {
+						yield "org.cryptomator.frontend.webdav.mount.LinuxGioMounter";
+					}
+				}
+			});
+		}
+	}
+
+	SettingsJson serialized() {
+		var json = new SettingsJson();
+		json.directories = directories.stream().map(VaultSettings::serialized).toList();
+		json.askedForUpdateCheck = askedForUpdateCheck.get();
+		json.checkForUpdatesEnabled = checkForUpdates.get();
+		json.startHidden = startHidden.get();
+		json.autoCloseVaults = autoCloseVaults.get();
+		json.useKeychain = useKeychain.get();
+		json.port = port.get();
+		json.numTrayNotifications = numTrayNotifications.get();
+		json.debugMode = debugMode.get();
+		json.theme = theme.get();
+		json.keychainProvider = keychainProvider.get();
+		json.uiOrientation = userInterfaceOrientation.get().name();
+		json.licenseKey = licenseKey.get();
+		json.showMinimizeButton = showMinimizeButton.get();
+		json.showTrayIcon = showTrayIcon.get();
+		json.windowXPosition = windowXPosition.get();
+		json.windowYPosition = windowYPosition.get();
+		json.windowWidth = windowWidth.get();
+		json.windowHeight = windowHeight.get();
+		json.displayConfiguration = displayConfiguration.get();
+		json.language = language.get();
+		json.mountService = mountService.get();
+		return json;
+	}
+
+	private <E extends Enum<E>> E parseEnum(String value, Class<E> clazz, E defaultValue) {
+		try {
+			return Enum.valueOf(clazz, value.toUpperCase());
+		} catch (IllegalArgumentException e) {
+			LOG.warn("No value {}.{}. Defaulting to {}.", clazz.getSimpleName(), value, defaultValue);
+			return defaultValue;
+		}
+	}
+
+
+	// TODO rename to setChangeListener
 	void setSaveCmd(Consumer<Settings> saveCmd) {
 		this.saveCmd = saveCmd;
 	}
@@ -119,90 +213,4 @@ public class Settings {
 		}
 	}

-	/* Getter/Setter */
-
-	public ObservableList<VaultSettings> getDirectories() {
-		return directories;
-	}
-
-	public BooleanProperty askedForUpdateCheck() {
-		return askedForUpdateCheck;
-	}
-
-	public BooleanProperty checkForUpdates() {
-		return checkForUpdates;
-	}
-
-	public BooleanProperty startHidden() {
-		return startHidden;
-	}
-
-	public BooleanProperty autoCloseVaults() {
-		return autoCloseVaults;
-	}
-
-	public BooleanProperty useKeychain() { return useKeychain; }
-
-	public IntegerProperty port() {
-		return port;
-	}
-
-	public IntegerProperty numTrayNotifications() {
-		return numTrayNotifications;
-	}
-
-	public BooleanProperty debugMode() {
-		return debugMode;
-	}
-
-	public StringProperty mountService() {
-		return mountService;
-	}
-
-	public ObjectProperty<UiTheme> theme() {
-		return theme;
-	}
-
-	public ObjectProperty<String> keychainProvider() {return keychainProvider;}
-
-	public ObjectProperty<NodeOrientation> userInterfaceOrientation() {
-		return userInterfaceOrientation;
-	}
-
-	public StringProperty licenseKey() {
-		return licenseKey;
-	}
-
-	public BooleanProperty showMinimizeButton() {
-		return showMinimizeButton;
-	}
-
-	public BooleanProperty showTrayIcon() {
-		return showTrayIcon;
-	}
-
-	public IntegerProperty windowXPositionProperty() {
-		return windowXPosition;
-	}
-
-	public IntegerProperty windowYPositionProperty() {
-		return windowYPosition;
-	}
-
-	public IntegerProperty windowWidthProperty() {
-		return windowWidth;
-	}
-
-	public IntegerProperty windowHeightProperty() {
-		return windowHeight;
-	}
-
-	public ObjectProperty<String> displayConfigurationProperty() {
-		return displayConfiguration;
-	}
-
-	public StringProperty languageProperty() {
-		return language;
-	}
-
 }
--- a/src/main/java/org/cryptomator/common/settings/SettingsJson.java
+++ b/src/main/java/org/cryptomator/common/settings/SettingsJson.java
@@ -0,0 +1,86 @@
+package org.cryptomator.common.settings;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import java.util.List;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@JsonInclude(JsonInclude.Include.NON_NULL)
+class SettingsJson {
+
+	@JsonProperty("directories")
+	List<VaultSettingsJson> directories = List.of();
+
+	@JsonProperty("writtenByVersion")
+	String writtenByVersion;
+
+	@JsonProperty("askedForUpdateCheck")
+	boolean askedForUpdateCheck = Settings.DEFAULT_ASKED_FOR_UPDATE_CHECK;
+
+	@JsonProperty("autoCloseVaults")
+	boolean autoCloseVaults = Settings.DEFAULT_AUTO_CLOSE_VAULTS;
+
+	@JsonProperty("checkForUpdatesEnabled")
+	boolean checkForUpdatesEnabled = Settings.DEFAULT_CHECK_FOR_UPDATES;
+
+	@JsonProperty("debugMode")
+	boolean debugMode = Settings.DEFAULT_DEBUG_MODE;
+
+	@JsonProperty("theme")
+	UiTheme theme = Settings.DEFAULT_THEME;
+
+	@JsonProperty("displayConfiguration")
+	String displayConfiguration;
+
+	@JsonProperty("keychainProvider")
+	String keychainProvider = Settings.DEFAULT_KEYCHAIN_PROVIDER;
+
+	@JsonProperty("language")
+	String language;
+
+	@JsonProperty("licenseKey")
+	String licenseKey;
+
+	@JsonProperty("mountService")
+	String mountService;
+
+	@JsonProperty("numTrayNotifications")
+	int numTrayNotifications = Settings.DEFAULT_NUM_TRAY_NOTIFICATIONS;
+
+	@JsonProperty("port")
+	int port = Settings.DEFAULT_PORT;
+
+	@JsonProperty("showMinimizeButton")
+	boolean showMinimizeButton = Settings.DEFAULT_SHOW_MINIMIZE_BUTTON;
+
+	@JsonProperty("showTrayIcon")
+	boolean showTrayIcon;
+
+	@JsonProperty("startHidden")
+	boolean startHidden = Settings.DEFAULT_START_HIDDEN;
+
+	@JsonProperty("uiOrientation")
+	String uiOrientation = Settings.DEFAULT_USER_INTERFACE_ORIENTATION;
+
+	@JsonProperty("useKeychain")
+	boolean useKeychain = Settings.DEFAULT_USE_KEYCHAIN;
+
+	@JsonProperty("windowHeight")
+	int windowHeight;
+
+	@JsonProperty("windowWidth")
+	int windowWidth;
+
+	@JsonProperty("windowXPosition")
+	int windowXPosition;
+
+	@JsonProperty("windowYPosition")
+	int windowYPosition;
+
+	@Deprecated(since = "1.7.0")
+	@JsonProperty(value = "preferredVolumeImpl", access = JsonProperty.Access.WRITE_ONLY) // WRITE_ONLY means value is "written" into the java object during deserialization. Upvote this: https://github.com/FasterXML/jackson-annotations/issues/233
+	String preferredVolumeImpl;
+
+}
--- a/src/main/java/org/cryptomator/common/settings/SettingsJsonAdapter.java
+++ b/src/main/java/org/cryptomator/common/settings/SettingsJsonAdapter.java
@@ -1,183 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2017 Skymatic UG (haftungsbeschränkt).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the accompanying LICENSE file.
- *******************************************************************************/
-package org.cryptomator.common.settings;
-
-import com.google.gson.TypeAdapter;
-import com.google.gson.stream.JsonReader;
-import com.google.gson.stream.JsonToken;
-import com.google.gson.stream.JsonWriter;
-import org.apache.commons.lang3.SystemUtils;
-import org.cryptomator.common.Environment;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import javax.inject.Inject;
-import javax.inject.Singleton;
-import javafx.geometry.NodeOrientation;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-@Singleton
-public class SettingsJsonAdapter extends TypeAdapter<Settings> {
-
-	private static final Logger LOG = LoggerFactory.getLogger(SettingsJsonAdapter.class);
-
-	private final VaultSettingsJsonAdapter vaultSettingsJsonAdapter = new VaultSettingsJsonAdapter();
-	private final Environment env;
-
-	@Inject
-	public SettingsJsonAdapter(Environment env) {
-		this.env = env;
-	}
-
-	@Override
-	public void write(JsonWriter out, Settings value) throws IOException {
-		out.beginObject();
-		out.name("writtenByVersion").value(env.getAppVersion() + env.getBuildNumber().map("-"::concat).orElse(""));
-		out.name("directories");
-		writeVaultSettingsArray(out, value.getDirectories());
-		out.name("askedForUpdateCheck").value(value.askedForUpdateCheck().get());
-		out.name("autoCloseVaults").value(value.autoCloseVaults().get());
-		out.name("checkForUpdatesEnabled").value(value.checkForUpdates().get());
-		out.name("debugMode").value(value.debugMode().get());
-		out.name("displayConfiguration").value((value.displayConfigurationProperty().get()));
-		out.name("keychainProvider").value(value.keychainProvider().get());
-		out.name("language").value((value.languageProperty().get()));
-		out.name("licenseKey").value(value.licenseKey().get());
-		out.name("mountService").value(value.mountService().get());
-		out.name("numTrayNotifications").value(value.numTrayNotifications().get());
-		out.name("port").value(value.port().get());
-		out.name("showMinimizeButton").value(value.showMinimizeButton().get());
-		out.name("showTrayIcon").value(value.showTrayIcon().get());
-		out.name("startHidden").value(value.startHidden().get());
-		out.name("theme").value(value.theme().get().name());
-		out.name("uiOrientation").value(value.userInterfaceOrientation().get().name());
-		out.name("useKeychain").value(value.useKeychain().get());
-		out.name("windowHeight").value((value.windowHeightProperty().get()));
-		out.name("windowWidth").value((value.windowWidthProperty().get()));
-		out.name("windowXPosition").value((value.windowXPositionProperty().get()));
-		out.name("windowYPosition").value((value.windowYPositionProperty().get()));
-		out.endObject();
-	}
-
-	private void writeVaultSettingsArray(JsonWriter out, Iterable<VaultSettings> vaultSettings) throws IOException {
-		out.beginArray();
-		for (VaultSettings value : vaultSettings) {
-			vaultSettingsJsonAdapter.write(out, value);
-		}
-		out.endArray();
-	}
-
-	@Override
-	public Settings read(JsonReader in) throws IOException {
-		Settings settings = new Settings(env);
-		//1.6.x legacy
-		String volumeImpl = null;
-		//legacy end
-		in.beginObject();
-		while (in.hasNext()) {
-			String name = in.nextName();
-			switch (name) {
-				case "writtenByVersion" -> in.skipValue(); //noop
-				case "directories" -> settings.getDirectories().addAll(readVaultSettingsArray(in));
-				case "askedForUpdateCheck" -> settings.askedForUpdateCheck().set(in.nextBoolean());
-				case "autoCloseVaults" -> settings.autoCloseVaults().set(in.nextBoolean());
-				case "checkForUpdatesEnabled" -> settings.checkForUpdates().set(in.nextBoolean());
-				case "debugMode" -> settings.debugMode().set(in.nextBoolean());
-				case "displayConfiguration" -> settings.displayConfigurationProperty().set(in.nextString());
-				case "keychainProvider" -> settings.keychainProvider().set(in.nextString());
-				case "language" -> settings.languageProperty().set(in.nextString());
-				case "licenseKey" -> settings.licenseKey().set(in.nextString());
-				case "mountService" -> {
-					var token = in.peek();
-					if (JsonToken.STRING == token) {
-						settings.mountService().set(in.nextString());
-					}
-				}
-				case "numTrayNotifications" -> settings.numTrayNotifications().set(in.nextInt());
-				case "port" -> settings.port().set(in.nextInt());
-				case "showMinimizeButton" -> settings.showMinimizeButton().set(in.nextBoolean());
-				case "showTrayIcon" -> settings.showTrayIcon().set(in.nextBoolean());
-				case "startHidden" -> settings.startHidden().set(in.nextBoolean());
-				case "theme" -> settings.theme().set(parseUiTheme(in.nextString()));
-				case "uiOrientation" -> settings.userInterfaceOrientation().set(parseUiOrientation(in.nextString()));
-				case "useKeychain" -> settings.useKeychain().set(in.nextBoolean());
-				case "windowHeight" -> settings.windowHeightProperty().set(in.nextInt());
-				case "windowWidth" -> settings.windowWidthProperty().set(in.nextInt());
-				case "windowXPosition" -> settings.windowXPositionProperty().set(in.nextInt());
-				case "windowYPosition" -> settings.windowYPositionProperty().set(in.nextInt());
-				//1.6.x legacy
-				case "preferredVolumeImpl" -> volumeImpl = in.nextString();
-				//legacy end
-				default -> {
-					LOG.warn("Unsupported vault setting found in JSON: {}", name);
-					in.skipValue();
-				}
-			}
-
-		}
-		in.endObject();
-
-		//1.6.x legacy
-		if (volumeImpl != null) {
-			settings.mountService().set(convertLegacyVolumeImplToMountService(volumeImpl));
-		}
-		//legacy end
-
-		return settings;
-	}
-
-	private String convertLegacyVolumeImplToMountService(String volumeImpl) {
-		if (volumeImpl.equals("Dokany")) {
-			return "org.cryptomator.frontend.dokany.mount.DokanyMountProvider";
-		} else if (volumeImpl.equals("FUSE")) {
-			if (SystemUtils.IS_OS_WINDOWS) {
-				return "org.cryptomator.frontend.fuse.mount.WinFspNetworkMountProvider";
-			} else if (SystemUtils.IS_OS_MAC) {
-				return "org.cryptomator.frontend.fuse.mount.MacFuseMountProvider";
-			} else {
-				return "org.cryptomator.frontend.fuse.mount.LinuxFuseMountProvider";
-			}
-		} else {
-			if (SystemUtils.IS_OS_WINDOWS) {
-				return "org.cryptomator.frontend.webdav.mount.WindowsMounter";
-			} else if (SystemUtils.IS_OS_MAC) {
-				return "org.cryptomator.frontend.webdav.mount.MacAppleScriptMounter";
-			} else {
-				return "org.cryptomator.frontend.webdav.mount.LinuxGioMounter";
-			}
-		}
-	}
-
-	private UiTheme parseUiTheme(String uiThemeName) {
-		try {
-			return UiTheme.valueOf(uiThemeName.toUpperCase());
-		} catch (IllegalArgumentException e) {
-			LOG.warn("Invalid ui theme {}. Defaulting to {}.", uiThemeName, Settings.DEFAULT_THEME);
-			return Settings.DEFAULT_THEME;
-		}
-	}
-
-	private NodeOrientation parseUiOrientation(String uiOrientationName) {
-		try {
-			return NodeOrientation.valueOf(uiOrientationName.toUpperCase());
-		} catch (IllegalArgumentException e) {
-			LOG.warn("Invalid ui orientation {}. Defaulting to {}.", uiOrientationName, Settings.DEFAULT_USER_INTERFACE_ORIENTATION);
-			return Settings.DEFAULT_USER_INTERFACE_ORIENTATION;
-		}
-	}
-
-	private List<VaultSettings> readVaultSettingsArray(JsonReader in) throws IOException {
-		List<VaultSettings> result = new ArrayList<>();
-		in.beginArray();
-		while (!JsonToken.END_ARRAY.equals(in.peek())) {
-			result.add(vaultSettingsJsonAdapter.read(in));
-		}
-		in.endArray();
-		return result;
-	}
-}
--- a/src/main/java/org/cryptomator/common/settings/SettingsProvider.java
+++ b/src/main/java/org/cryptomator/common/settings/SettingsProvider.java
@@ -8,12 +8,9 @@
 *******************************************************************************/
 package org.cryptomator.common.settings;

+import com.fasterxml.jackson.core.JacksonException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.base.Suppliers;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonParseException;
-import com.google.gson.JsonParser;
 import org.cryptomator.common.Environment;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -22,12 +19,7 @@ import javax.inject.Inject;
 import javax.inject.Singleton;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.InputStreamReader;
 import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.Reader;
-import java.io.Writer;
-import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.NoSuchFileException;
 import java.nio.file.Path;
@@ -44,6 +36,7 @@ import java.util.stream.Stream;
@Singleton
 public class SettingsProvider implements Supplier<Settings> {

+	private static final ObjectMapper JSON = new ObjectMapper().setDefaultLeniency(true);
 	private static final Logger LOG = LoggerFactory.getLogger(SettingsProvider.class);
 	private static final long SAVE_DELAY_MS = 1000;

@@ -51,16 +44,11 @@ public class SettingsProvider implements Supplier<Settings> {
 	private final Supplier<Settings> settings = Suppliers.memoize(this::load);
 	private final Environment env;
 	private final ScheduledExecutorService scheduler;
-	private final Gson gson;

 	@Inject
-	public SettingsProvider(SettingsJsonAdapter settingsJsonAdapter, Environment env, ScheduledExecutorService scheduler) {
+	public SettingsProvider(Environment env, ScheduledExecutorService scheduler) {
 		this.env = env;
 		this.scheduler = scheduler;
-		this.gson = new GsonBuilder() //
-				.setPrettyPrinting().setLenient().disableHtmlEscaping() //
-				.registerTypeAdapter(Settings.class, settingsJsonAdapter) //
-				.create();
 	}

 	@Override
@@ -69,28 +57,25 @@ public class SettingsProvider implements Supplier<Settings> {
 	}

 	private Settings load() {
-		Settings settings = env.getSettingsPath().flatMap(this::tryLoad).findFirst().orElse(new Settings(env));
+		Settings settings = env.getSettingsPath().flatMap(this::tryLoad).findFirst().orElseGet(() -> Settings.create(env));
 		settings.setSaveCmd(this::scheduleSave);
 		return settings;
 	}

 	private Stream<Settings> tryLoad(Path path) {
 		LOG.debug("Attempting to load settings from {}", path);
-		try (InputStream in = Files.newInputStream(path, StandardOpenOption.READ); //
-			 Reader reader = new InputStreamReader(in, StandardCharsets.UTF_8)) {
-			JsonElement json = JsonParser.parseReader(reader);
-			if (json.isJsonObject()) {
-				Settings settings = gson.fromJson(json, Settings.class);
-				LOG.info("Settings loaded from {}", path);
-				return Stream.of(settings);
-			} else {
-				LOG.warn("Invalid json file {}", path);
-				return Stream.empty();
-			}
+		try (InputStream in = Files.newInputStream(path, StandardOpenOption.READ)) {
+			var json = JSON.reader().readValue(in, SettingsJson.class);
+			LOG.info("Settings loaded from {}", path);
+			var settings = new Settings(json);
+			return Stream.of(settings);
+		} catch (JacksonException e) {
+			LOG.warn("Failed to parse json file {}", path, e);
+			return Stream.empty();
 		} catch (NoSuchFileException e) {
 			return Stream.empty();
-		} catch (IOException | JsonParseException e) {
-			LOG.warn("Exception while loading settings from " + path, e);
+		} catch (IOException e) {
+			LOG.warn("Failed to load json file {}", path, e);
 			return Stream.empty();
 		}
 	}
@@ -116,13 +101,14 @@ public class SettingsProvider implements Supplier<Settings> {
 		try {
 			Files.createDirectories(settingsPath.getParent());
 			Path tmpPath = settingsPath.resolveSibling(settingsPath.getFileName().toString() + ".tmp");
-			try (OutputStream out = Files.newOutputStream(tmpPath, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE); //
-				 Writer writer = new OutputStreamWriter(out, StandardCharsets.UTF_8)) {
-				gson.toJson(settings, writer);
+			try (OutputStream out = Files.newOutputStream(tmpPath, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE)) {
+				var jsonObj = settings.serialized();
+				jsonObj.writtenByVersion = env.getAppVersion() + env.getBuildNumber().map("-"::concat).orElse("");
+				JSON.writerWithDefaultPrettyPrinter().writeValue(out, jsonObj);
 			}
 			Files.move(tmpPath, settingsPath, StandardCopyOption.REPLACE_EXISTING);
 			LOG.info("Settings saved to {}", settingsPath);
-		} catch (IOException | JsonParseException e) {
+		} catch (IOException e) {
 			LOG.error("Failed to save settings.", e);
 		}
 	}
--- a/src/main/java/org/cryptomator/common/settings/UiTheme.java
+++ b/src/main/java/org/cryptomator/common/settings/UiTheme.java
@@ -1,9 +1,12 @@
 package org.cryptomator.common.settings;

+import com.fasterxml.jackson.annotation.JsonEnumDefaultValue;
+import com.fasterxml.jackson.annotation.JsonFormat;
 import org.apache.commons.lang3.SystemUtils;

+@JsonFormat(shape = JsonFormat.Shape.STRING)
 public enum UiTheme {
-	LIGHT("preferences.interface.theme.light"), //
+	@JsonEnumDefaultValue LIGHT("preferences.interface.theme.light"), //
 	DARK("preferences.interface.theme.dark"), //
 	AUTOMATIC("preferences.interface.theme.automatic");

--- a/src/main/java/org/cryptomator/common/settings/VaultSettings.java
+++ b/src/main/java/org/cryptomator/common/settings/VaultSettings.java
@@ -6,7 +6,9 @@
 package org.cryptomator.common.settings;

 import com.google.common.base.CharMatcher;
+import com.google.common.base.Strings;
 import com.google.common.io.BaseEncoding;
+import org.apache.commons.lang3.SystemUtils;

 import javafx.beans.Observable;
 import javafx.beans.binding.Bindings;
@@ -20,6 +22,7 @@ import javafx.beans.property.SimpleObjectProperty;
 import javafx.beans.property.SimpleStringProperty;
 import javafx.beans.property.StringProperty;
 import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.Objects;
 import java.util.Random;

@@ -28,33 +31,45 @@ import java.util.Random;
 */
 public class VaultSettings {

-	public static final boolean DEFAULT_UNLOCK_AFTER_STARTUP = false;
-	public static final boolean DEFAULT_REVEAL_AFTER_MOUNT = true;
-	public static final boolean DEFAULT_USES_READONLY_MODE = false;
-	public static final String DEFAULT_MOUNT_FLAGS = "";
-	public static final int DEFAULT_MAX_CLEARTEXT_FILENAME_LENGTH = -1;
-	public static final WhenUnlocked DEFAULT_ACTION_AFTER_UNLOCK = WhenUnlocked.ASK;
-	public static final boolean DEFAULT_AUTOLOCK_WHEN_IDLE = false;
-	public static final int DEFAULT_AUTOLOCK_IDLE_SECONDS = 30 * 60;
+	static final boolean DEFAULT_UNLOCK_AFTER_STARTUP = false;
+	static final boolean DEFAULT_REVEAL_AFTER_MOUNT = true;
+	static final boolean DEFAULT_USES_READONLY_MODE = false;
+	static final String DEFAULT_MOUNT_FLAGS = ""; // TODO: remove empty default mount flags and let this property be null if not used
+	static final int DEFAULT_MAX_CLEARTEXT_FILENAME_LENGTH = -1;
+	static final WhenUnlocked DEFAULT_ACTION_AFTER_UNLOCK = WhenUnlocked.ASK;
+	static final boolean DEFAULT_AUTOLOCK_WHEN_IDLE = false;
+	static final int DEFAULT_AUTOLOCK_IDLE_SECONDS = 30 * 60;

 	private static final Random RNG = new Random();

-	private final String id;
-	private final ObjectProperty<Path> path = new SimpleObjectProperty<>();
-	private final StringProperty displayName = new SimpleStringProperty();
-	private final BooleanProperty unlockAfterStartup = new SimpleBooleanProperty(DEFAULT_UNLOCK_AFTER_STARTUP);
-	private final BooleanProperty revealAfterMount = new SimpleBooleanProperty(DEFAULT_REVEAL_AFTER_MOUNT);
-	private final BooleanProperty usesReadOnlyMode = new SimpleBooleanProperty(DEFAULT_USES_READONLY_MODE);
-	private final StringProperty mountFlags = new SimpleStringProperty(DEFAULT_MOUNT_FLAGS); //TODO: remove empty default mount flags and let this property be null if not used
-	private final IntegerProperty maxCleartextFilenameLength = new SimpleIntegerProperty(DEFAULT_MAX_CLEARTEXT_FILENAME_LENGTH);
-	private final ObjectProperty<WhenUnlocked> actionAfterUnlock = new SimpleObjectProperty<>(DEFAULT_ACTION_AFTER_UNLOCK);
-	private final BooleanProperty autoLockWhenIdle = new SimpleBooleanProperty(DEFAULT_AUTOLOCK_WHEN_IDLE);
-	private final IntegerProperty autoLockIdleSeconds = new SimpleIntegerProperty(DEFAULT_AUTOLOCK_IDLE_SECONDS);
-	private final StringExpression mountName;
-	private final ObjectProperty<Path> mountPoint = new SimpleObjectProperty<>();
+	public final String id;
+	public final ObjectProperty<Path> path;
+	public final StringProperty displayName;
+	public final BooleanProperty unlockAfterStartup;
+	public final BooleanProperty revealAfterMount;
+	public final BooleanProperty usesReadOnlyMode;
+	public final StringProperty mountFlags;
+	public final IntegerProperty maxCleartextFilenameLength;
+	public final ObjectProperty<WhenUnlocked> actionAfterUnlock;
+	public final BooleanProperty autoLockWhenIdle;
+	public final IntegerProperty autoLockIdleSeconds;
+	public final ObjectProperty<Path> mountPoint;
+	public final StringExpression mountName;

-	public VaultSettings(String id) {
-		this.id = Objects.requireNonNull(id);
+	VaultSettings(VaultSettingsJson json) {
+		this.id = json.id;
+		this.path = new SimpleObjectProperty<>(this, "path", json.path == null ? null : Paths.get(json.path));
+		this.displayName = new SimpleStringProperty(this, "displayName", json.displayName);
+		this.unlockAfterStartup = new SimpleBooleanProperty(this, "unlockAfterStartup", json.unlockAfterStartup);
+		this.revealAfterMount = new SimpleBooleanProperty(this, "revealAfterMount", json.revealAfterMount);
+		this.usesReadOnlyMode = new SimpleBooleanProperty(this, "usesReadOnlyMode", json.usesReadOnlyMode);
+		this.mountFlags = new SimpleStringProperty(this, "mountFlags", json.mountFlags);
+		this.maxCleartextFilenameLength = new SimpleIntegerProperty(this, "maxCleartextFilenameLength", json.maxCleartextFilenameLength);
+		this.actionAfterUnlock = new SimpleObjectProperty<>(this, "actionAfterUnlock", json.actionAfterUnlock);
+		this.autoLockWhenIdle = new SimpleBooleanProperty(this, "autoLockWhenIdle", json.autoLockWhenIdle);
+		this.autoLockIdleSeconds = new SimpleIntegerProperty(this, "autoLockIdleSeconds", json.autoLockIdleSeconds);
+		this.mountPoint = new SimpleObjectProperty<>(this, "mountPoint", json.mountPoint == null ? null : Path.of(json.mountPoint));
+		// mount name is no longer an explicit setting, see https://github.com/cryptomator/cryptomator/pull/1318
 		this.mountName = StringExpression.stringExpression(Bindings.createStringBinding(() -> {
 			final String name;
 			if (displayName.isEmpty().get()) {
@@ -64,6 +79,18 @@ public class VaultSettings {
 			}
 			return normalizeDisplayName(name);
 		}, displayName, path));
+
+		migrateLegacySettings(json);
+	}
+
+	@SuppressWarnings("deprecation")
+	private void migrateLegacySettings(VaultSettingsJson json) {
+		// implicit migration of 1.6.x legacy setting "customMountPath" / "winDriveLetter":
+		if (json.useCustomMountPath && !Strings.isNullOrEmpty(json.customMountPath)) {
+			this.mountPoint.set(Path.of(json.customMountPath));
+		} else if (!Strings.isNullOrEmpty(json.winDriveLetter)) {
+			this.mountPoint.set(Path.of(json.winDriveLetter + ":\\"));
+		}
 	}

 	Observable[] observables() {
@@ -71,7 +98,9 @@ public class VaultSettings {
 	}

 	public static VaultSettings withRandomId() {
-		return new VaultSettings(generateId());
+		var defaults = new VaultSettingsJson();
+		defaults.id = generateId();
+		return new VaultSettings(defaults);
 	}

 	private static String generateId() {
@@ -80,6 +109,23 @@ public class VaultSettings {
 		return BaseEncoding.base64Url().encode(randomBytes);
 	}

+	VaultSettingsJson serialized() {
+		var json = new VaultSettingsJson();
+		json.id = id;
+		json.path = path.map(Path::toString).getValue();
+		json.displayName = displayName.get();
+		json.unlockAfterStartup = unlockAfterStartup.get();
+		json.revealAfterMount = revealAfterMount.get();
+		json.usesReadOnlyMode = usesReadOnlyMode.get();
+		json.mountFlags = mountFlags.get();
+		json.maxCleartextFilenameLength = maxCleartextFilenameLength.get();
+		json.actionAfterUnlock = actionAfterUnlock.get();
+		json.autoLockWhenIdle = autoLockWhenIdle.get();
+		json.autoLockIdleSeconds = autoLockIdleSeconds.get();
+		json.mountPoint = mountPoint.map(Path::toString).getValue();
+		return json;
+	}
+
 	//visible for testing
 	static String normalizeDisplayName(String original) {
 		if (original.isBlank() || ".".equals(original) || "..".equals(original)) {
@@ -93,68 +139,6 @@ public class VaultSettings {
 		return CharMatcher.anyOf("<>:\"/\\|?*").or(CharMatcher.javaIsoControl()).collapseFrom(withoutFancyWhitespaces, '_');
 	}

-	/* Getter/Setter */
-
-	public String getId() {
-		return id;
-	}
-
-	public ObjectProperty<Path> path() {
-		return path;
-	}
-
-	public StringProperty displayName() {
-		return displayName;
-	}
-
-	public StringExpression mountName() {
-		return mountName;
-	}
-
-	public BooleanProperty unlockAfterStartup() {
-		return unlockAfterStartup;
-	}
-
-	public BooleanProperty revealAfterMount() {
-		return revealAfterMount;
-	}
-
-	public Path getMountPoint() {
-		return mountPoint.get();
-	}
-
-	public ObjectProperty<Path> mountPoint() {
-		return mountPoint;
-	}
-
-	public BooleanProperty usesReadOnlyMode() {
-		return usesReadOnlyMode;
-	}
-
-	public StringProperty mountFlags() {
-		return mountFlags;
-	}
-
-	public IntegerProperty maxCleartextFilenameLength() {
-		return maxCleartextFilenameLength;
-	}
-
-	public ObjectProperty<WhenUnlocked> actionAfterUnlock() {
-		return actionAfterUnlock;
-	}
-
-	public WhenUnlocked getActionAfterUnlock() {
-		return actionAfterUnlock.get();
-	}
-
-	public BooleanProperty autoLockWhenIdle() {
-		return autoLockWhenIdle;
-	}
-
-	public IntegerProperty autoLockIdleSeconds() {
-		return autoLockIdleSeconds;
-	}
-
 	/* Hashcode/Equals */

 	@Override
--- a/src/main/java/org/cryptomator/common/settings/VaultSettingsJson.java
+++ b/src/main/java/org/cryptomator/common/settings/VaultSettingsJson.java
@@ -0,0 +1,62 @@
+package org.cryptomator.common.settings;
+
+import com.fasterxml.jackson.annotation.JsonAlias;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@JsonInclude(JsonInclude.Include.NON_NULL)
+class VaultSettingsJson {
+
+	@JsonProperty(value = "id", required = true)
+	String id;
+
+	@JsonProperty(value = "path")
+	String path;
+
+	@JsonProperty("displayName")
+	String displayName;
+
+	@JsonProperty("unlockAfterStartup")
+	boolean unlockAfterStartup = VaultSettings.DEFAULT_UNLOCK_AFTER_STARTUP;
+
+	@JsonProperty("revealAfterMount")
+	boolean revealAfterMount = VaultSettings.DEFAULT_REVEAL_AFTER_MOUNT;
+
+	@JsonProperty("mountPoint")
+	String mountPoint;
+
+	@JsonProperty("usesReadOnlyMode")
+	boolean usesReadOnlyMode = VaultSettings.DEFAULT_USES_READONLY_MODE;
+
+	@JsonProperty("mountFlags")
+	String mountFlags = VaultSettings.DEFAULT_MOUNT_FLAGS;
+
+	@JsonProperty("maxCleartextFilenameLength")
+	int maxCleartextFilenameLength = VaultSettings.DEFAULT_MAX_CLEARTEXT_FILENAME_LENGTH;
+
+	@JsonProperty("actionAfterUnlock")
+	WhenUnlocked actionAfterUnlock = VaultSettings.DEFAULT_ACTION_AFTER_UNLOCK;
+
+	@JsonProperty("autoLockWhenIdle")
+	boolean autoLockWhenIdle = VaultSettings.DEFAULT_AUTOLOCK_WHEN_IDLE;
+
+	@JsonProperty("autoLockIdleSeconds")
+	int autoLockIdleSeconds = VaultSettings.DEFAULT_AUTOLOCK_IDLE_SECONDS;
+
+	@Deprecated(since = "1.7.0")
+	@JsonProperty(value = "winDriveLetter", access = JsonProperty.Access.WRITE_ONLY) // WRITE_ONLY means value is "written" into the java object during deserialization. Upvote this: https://github.com/FasterXML/jackson-annotations/issues/233
+	String winDriveLetter;
+
+	@Deprecated(since = "1.7.0")
+	@JsonProperty(value = "useCustomMountPath", access = JsonProperty.Access.WRITE_ONLY) // WRITE_ONLY means value is "written" into the java object during deserialization. Upvote this: https://github.com/FasterXML/jackson-annotations/issues/233
+	@JsonAlias("usesIndividualMountPath")
+	boolean useCustomMountPath;
+
+	@Deprecated(since = "1.7.0")
+	@JsonProperty(value = "customMountPath", access = JsonProperty.Access.WRITE_ONLY) // WRITE_ONLY means value is "written" into the java object during deserialization. Upvote this: https://github.com/FasterXML/jackson-annotations/issues/233
+	@JsonAlias("individualMountPath")
+	String customMountPath;
+
+}
--- a/src/main/java/org/cryptomator/common/settings/VaultSettingsJsonAdapter.java
+++ b/src/main/java/org/cryptomator/common/settings/VaultSettingsJsonAdapter.java
@@ -1,142 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2017 Skymatic UG (haftungsbeschränkt).
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the accompanying LICENSE file.
- *******************************************************************************/
-package org.cryptomator.common.settings;
-
-import com.google.gson.stream.JsonReader;
-import com.google.gson.stream.JsonToken;
-import com.google.gson.stream.JsonWriter;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.IOException;
-import java.nio.file.InvalidPathException;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-
-class VaultSettingsJsonAdapter {
-
-	private static final Logger LOG = LoggerFactory.getLogger(VaultSettingsJsonAdapter.class);
-
-	public void write(JsonWriter out, VaultSettings value) throws IOException {
-		out.beginObject();
-		out.name("id").value(value.getId());
-		out.name("path").value(value.path().get().toString());
-		out.name("displayName").value(value.displayName().get());
-		out.name("unlockAfterStartup").value(value.unlockAfterStartup().get());
-		out.name("revealAfterMount").value(value.revealAfterMount().get());
-		var mountPoint = value.mountPoint().get();
-		out.name("mountPoint").value(mountPoint != null ? mountPoint.toAbsolutePath().toString() : null);
-		out.name("usesReadOnlyMode").value(value.usesReadOnlyMode().get());
-		out.name("mountFlags").value(value.mountFlags().get());
-		out.name("maxCleartextFilenameLength").value(value.maxCleartextFilenameLength().get());
-		out.name("actionAfterUnlock").value(value.actionAfterUnlock().get().name());
-		out.name("autoLockWhenIdle").value(value.autoLockWhenIdle().get());
-		out.name("autoLockIdleSeconds").value(value.autoLockIdleSeconds().get());
-		out.endObject();
-	}
-
-	public VaultSettings read(JsonReader in) throws IOException {
-		String id = null;
-		String path = null;
-		String mountName = null; //see https://github.com/cryptomator/cryptomator/pull/1318
-		String displayName = null;
-		boolean unlockAfterStartup = VaultSettings.DEFAULT_UNLOCK_AFTER_STARTUP;
-		boolean revealAfterMount = VaultSettings.DEFAULT_REVEAL_AFTER_MOUNT;
-		boolean usesReadOnlyMode = VaultSettings.DEFAULT_USES_READONLY_MODE;
-		String mountFlags = VaultSettings.DEFAULT_MOUNT_FLAGS;
-		Path mountPoint = null;
-		int maxCleartextFilenameLength = VaultSettings.DEFAULT_MAX_CLEARTEXT_FILENAME_LENGTH;
-		WhenUnlocked actionAfterUnlock = VaultSettings.DEFAULT_ACTION_AFTER_UNLOCK;
-		boolean autoLockWhenIdle = VaultSettings.DEFAULT_AUTOLOCK_WHEN_IDLE;
-		int autoLockIdleSeconds = VaultSettings.DEFAULT_AUTOLOCK_IDLE_SECONDS;
-
-		//legacy from 1.6.x
-		boolean useCustomMountPath = false;
-		String customMountPath = "";
-		String winDriveLetter = "";
-		//legacy end
-
-		in.beginObject();
-		while (in.hasNext()) {
-			String name = in.nextName();
-			switch (name) {
-				case "id" -> id = in.nextString();
-				case "path" -> path = in.nextString();
-				case "mountName" -> mountName = in.nextString(); //see https://github.com/cryptomator/cryptomator/pull/1318
-				case "displayName" -> displayName = in.nextString();
-				case "unlockAfterStartup" -> unlockAfterStartup = in.nextBoolean();
-				case "revealAfterMount" -> revealAfterMount = in.nextBoolean();
-				case "usesReadOnlyMode" -> usesReadOnlyMode = in.nextBoolean();
-				case "mountFlags" -> mountFlags = in.nextString();
-				case "mountPoint" -> {
-					if (JsonToken.NULL == in.peek()) {
-						in.nextNull();
-					} else {
-						mountPoint = parseMountPoint(in.nextString());
-					}
-				}
-				case "maxCleartextFilenameLength" -> maxCleartextFilenameLength = in.nextInt();
-				case "actionAfterUnlock" -> actionAfterUnlock = parseActionAfterUnlock(in.nextString());
-				case "autoLockWhenIdle" -> autoLockWhenIdle = in.nextBoolean();
-				case "autoLockIdleSeconds" -> autoLockIdleSeconds = in.nextInt();
-				//legacy from 1.6.x
-				case "winDriveLetter" -> winDriveLetter = in.nextString();
-				case "usesIndividualMountPath", "useCustomMountPath" -> useCustomMountPath = in.nextBoolean();
-				case "individualMountPath", "customMountPath" -> customMountPath = in.nextString();
-				//legacy end
-				default -> {
-					LOG.warn("Unsupported vault setting found in JSON: {}", name);
-					in.skipValue();
-				}
-			}
-		}
-		in.endObject();
-
-		VaultSettings vaultSettings = (id == null) ? VaultSettings.withRandomId() : new VaultSettings(id);
-		if (displayName != null) { //see https://github.com/cryptomator/cryptomator/pull/1318
-			vaultSettings.displayName().set(displayName);
-		} else {
-			vaultSettings.displayName().set(mountName);
-		}
-		vaultSettings.path().set(Paths.get(path));
-		vaultSettings.unlockAfterStartup().set(unlockAfterStartup);
-		vaultSettings.revealAfterMount().set(revealAfterMount);
-		vaultSettings.usesReadOnlyMode().set(usesReadOnlyMode);
-		vaultSettings.mountFlags().set(mountFlags);
-		vaultSettings.maxCleartextFilenameLength().set(maxCleartextFilenameLength);
-		vaultSettings.actionAfterUnlock().set(actionAfterUnlock);
-		vaultSettings.autoLockWhenIdle().set(autoLockWhenIdle);
-		vaultSettings.autoLockIdleSeconds().set(autoLockIdleSeconds);
-		vaultSettings.mountPoint().set(mountPoint);
-		//legacy from 1.6.x
-		if(useCustomMountPath && !customMountPath.isBlank()) {
-			vaultSettings.mountPoint().set(parseMountPoint(customMountPath));
-		} else if(!winDriveLetter.isBlank() ) {
-			vaultSettings.mountPoint().set(parseMountPoint(winDriveLetter+":\\"));
-		}
-		//legacy end
-		return vaultSettings;
-	}
-
-	private Path parseMountPoint(String mountPoint) {
-		try {
-			return Path.of(mountPoint);
-		} catch (InvalidPathException e) {
-			LOG.warn("Invalid string as mount point. Defaulting to null.");
-			return null;
-		}
-	}
-
-	private WhenUnlocked parseActionAfterUnlock(String actionAfterUnlockName) {
-		try {
-			return WhenUnlocked.valueOf(actionAfterUnlockName.toUpperCase());
-		} catch (IllegalArgumentException e) {
-			LOG.warn("Invalid action after unlock {}. Defaulting to {}.", actionAfterUnlockName, VaultSettings.DEFAULT_ACTION_AFTER_UNLOCK);
-			return VaultSettings.DEFAULT_ACTION_AFTER_UNLOCK;
-		}
-	}
-
-}
--- a/src/main/java/org/cryptomator/common/settings/WhenUnlocked.java
+++ b/src/main/java/org/cryptomator/common/settings/WhenUnlocked.java
@@ -1,9 +1,13 @@
 package org.cryptomator.common.settings;

+import com.fasterxml.jackson.annotation.JsonEnumDefaultValue;
+import com.fasterxml.jackson.annotation.JsonFormat;
+
+@JsonFormat(shape = JsonFormat.Shape.STRING)
 public enum WhenUnlocked {
 	IGNORE("vaultOptions.general.actionAfterUnlock.ignore"),
 	REVEAL("vaultOptions.general.actionAfterUnlock.reveal"),
-	ASK("vaultOptions.general.actionAfterUnlock.ask");
+	@JsonEnumDefaultValue ASK("vaultOptions.general.actionAfterUnlock.ask");

 	private String displayName;

--- a/src/main/java/org/cryptomator/common/vaults/AutoLocker.java
+++ b/src/main/java/org/cryptomator/common/vaults/AutoLocker.java
@@ -50,8 +50,8 @@ public class AutoLocker {

 	private boolean exceedsIdleTime(Vault vault) {
 		assert vault.isUnlocked();
-		if (vault.getVaultSettings().autoLockWhenIdle().get()) {
-			int maxIdleSeconds = vault.getVaultSettings().autoLockIdleSeconds().get();
+		if (vault.getVaultSettings().autoLockWhenIdle.get()) {
+			int maxIdleSeconds = vault.getVaultSettings().autoLockIdleSeconds.get();
 			var deadline = vault.getStats().getLastActivity().plusSeconds(maxIdleSeconds);
 			return deadline.isBefore(Instant.now());
 		} else {
--- a/src/main/java/org/cryptomator/common/vaults/Vault.java
+++ b/src/main/java/org/cryptomator/common/vaults/Vault.java
@@ -80,7 +80,7 @@ public class Vault {
 		this.state = state;
 		this.lastKnownException = lastKnownException;
 		this.stats = stats;
-		this.displayablePath = Bindings.createStringBinding(this::getDisplayablePath, vaultSettings.path());
+		this.displayablePath = Bindings.createStringBinding(this::getDisplayablePath, vaultSettings.path);
 		this.locked = Bindings.createBooleanBinding(this::isLocked, state);
 		this.processing = Bindings.createBooleanBinding(this::isProcessing, state);
 		this.unlocked = Bindings.createBooleanBinding(this::isUnlocked, state);
@@ -98,29 +98,29 @@ public class Vault {

 	private CryptoFileSystem createCryptoFileSystem(MasterkeyLoader keyLoader) throws IOException, MasterkeyLoadingFailedException {
 		Set<FileSystemFlags> flags = EnumSet.noneOf(FileSystemFlags.class);
-		if (vaultSettings.usesReadOnlyMode().get()) {
+		if (vaultSettings.usesReadOnlyMode.get()) {
 			flags.add(FileSystemFlags.READONLY);
-		} else if (vaultSettings.maxCleartextFilenameLength().get() == -1) {
+		} else if (vaultSettings.maxCleartextFilenameLength.get() == -1) {
 			LOG.debug("Determining cleartext filename length limitations...");
 			var checker = new FileSystemCapabilityChecker();
 			int shorteningThreshold = configCache.get().allegedShorteningThreshold();
 			int ciphertextLimit = checker.determineSupportedCiphertextFileNameLength(getPath());
 			if (ciphertextLimit < shorteningThreshold) {
 				int cleartextLimit = checker.determineSupportedCleartextFileNameLength(getPath());
-				vaultSettings.maxCleartextFilenameLength().set(cleartextLimit);
+				vaultSettings.maxCleartextFilenameLength.set(cleartextLimit);
 			} else {
-				vaultSettings.maxCleartextFilenameLength().setValue(UNLIMITED_FILENAME_LENGTH);
+				vaultSettings.maxCleartextFilenameLength.setValue(UNLIMITED_FILENAME_LENGTH);
 			}
 		}

-		if (vaultSettings.maxCleartextFilenameLength().get() < UNLIMITED_FILENAME_LENGTH) {
-			LOG.warn("Limiting cleartext filename length on this device to {}.", vaultSettings.maxCleartextFilenameLength().get());
+		if (vaultSettings.maxCleartextFilenameLength.get() < UNLIMITED_FILENAME_LENGTH) {
+			LOG.warn("Limiting cleartext filename length on this device to {}.", vaultSettings.maxCleartextFilenameLength.get());
 		}

 		CryptoFileSystemProperties fsProps = CryptoFileSystemProperties.cryptoFileSystemProperties() //
 				.withKeyLoader(keyLoader) //
 				.withFlags(flags) //
-				.withMaxCleartextNameLength(vaultSettings.maxCleartextFilenameLength().get()) //
+				.withMaxCleartextNameLength(vaultSettings.maxCleartextFilenameLength.get()) //
 				.withVaultConfigFilename(Constants.VAULTCONFIG_FILENAME) //
 				.build();
 		return CryptoFileSystemProvider.newFileSystem(getPath(), fsProps);
@@ -253,11 +253,11 @@ public class Vault {
 	}

 	public ReadOnlyStringProperty displayNameProperty() {
-		return vaultSettings.displayName();
+		return vaultSettings.displayName;
 	}

 	public String getDisplayName() {
-		return vaultSettings.displayName().get();
+		return vaultSettings.displayName.get();
 	}

 	public ObjectBinding<Mountpoint> mountPointProperty() {
@@ -274,7 +274,7 @@ public class Vault {
 	}

 	public String getDisplayablePath() {
-		Path p = vaultSettings.path().get();
+		Path p = vaultSettings.path.get();
 		if (p.startsWith(HOME_DIR)) {
 			Path relativePath = HOME_DIR.relativize(p);
 			String homePrefix = SystemUtils.IS_OS_WINDOWS ? "~\\" : "~/";
@@ -311,7 +311,7 @@ public class Vault {
 	}

 	public Path getPath() {
-		return vaultSettings.path().getValue();
+		return vaultSettings.path.get();
 	}

 	/**
@@ -346,7 +346,7 @@ public class Vault {
 	}

 	public String getId() {
-		return vaultSettings.getId();
+		return vaultSettings.id;
 	}

 	// ******************************************************************************
--- a/src/main/java/org/cryptomator/common/vaults/VaultConfigCache.java
+++ b/src/main/java/org/cryptomator/common/vaults/VaultConfigCache.java
@@ -27,7 +27,7 @@ public class VaultConfigCache {

 	void reloadConfig() throws IOException {
 		try {
-			config.set(readConfigFromStorage(this.settings.path().get()));
+			config.set(readConfigFromStorage(this.settings.path.get()));
 		} catch (IOException e) {
 			config.set(null);
 			throw e;
--- a/src/main/java/org/cryptomator/common/vaults/VaultListManager.java
+++ b/src/main/java/org/cryptomator/common/vaults/VaultListManager.java
@@ -49,8 +49,8 @@ public class VaultListManager {
 		this.vaultComponentFactory = vaultComponentFactory;
 		this.defaultVaultName = resourceBundle.getString("defaults.vault.vaultName");

-		addAll(settings.getDirectories());
-		vaultList.addListener(new VaultListChangeListener(settings.getDirectories()));
+		addAll(settings.directories);
+		vaultList.addListener(new VaultListChangeListener(settings.directories));
 		autoLocker.init();
 	}

@@ -70,11 +70,11 @@ public class VaultListManager {

 	private VaultSettings newVaultSettings(Path path) {
 		VaultSettings vaultSettings = VaultSettings.withRandomId();
-		vaultSettings.path().set(path);
+		vaultSettings.path.set(path);
 		if (path.getFileName() != null) {
-			vaultSettings.displayName().set(path.getFileName().toString());
+			vaultSettings.displayName.set(path.getFileName().toString());
 		} else {
-			vaultSettings.displayName().set(defaultVaultName);
+			vaultSettings.displayName.set(defaultVaultName);
 		}
 		return vaultSettings;
 	}
@@ -95,13 +95,13 @@ public class VaultListManager {
 	private Vault create(VaultSettings vaultSettings) {
 		var wrapper = new VaultConfigCache(vaultSettings);
 		try {
-			var vaultState = determineVaultState(vaultSettings.path().get());
+			var vaultState = determineVaultState(vaultSettings.path.get());
 			if (vaultState == LOCKED) { //for legacy reasons: pre v8 vault do not have a config, but they are in the NEEDS_MIGRATION state
 				wrapper.reloadConfig();
 			}
 			return vaultComponentFactory.create(vaultSettings, wrapper, vaultState, null).vault();
 		} catch (IOException e) {
-			LOG.warn("Failed to determine vault state for " + vaultSettings.path().get(), e);
+			LOG.warn("Failed to determine vault state for " + vaultSettings.path.get(), e);
 			return vaultComponentFactory.create(vaultSettings, wrapper, ERROR, e).vault();
 		}
 	}
--- a/src/main/java/org/cryptomator/launcher/Cryptomator.java
+++ b/src/main/java/org/cryptomator/launcher/Cryptomator.java
@@ -9,6 +9,7 @@ import com.google.common.util.concurrent.ThreadFactoryBuilder;
 import dagger.Lazy;
 import org.apache.commons.lang3.SystemUtils;
 import org.cryptomator.common.Environment;
+import org.cryptomator.common.SubstitutingProperties;
 import org.cryptomator.common.ShutdownHook;
 import org.cryptomator.ipc.IpcCommunicator;
 import org.cryptomator.logging.DebugMode;
@@ -29,10 +30,18 @@ import java.util.concurrent.Executors;
 public class Cryptomator {

 	private static final long STARTUP_TIME = System.currentTimeMillis();
+
+	static {
+		var lazyProcessedProps = new SubstitutingProperties(System.getProperties(), System.getenv());
+		System.setProperties(lazyProcessedProps);
+		CRYPTOMATOR_COMPONENT = DaggerCryptomatorComponent.factory().create(STARTUP_TIME);
+		LOG = LoggerFactory.getLogger(Cryptomator.class);
+	}
+
 	// DaggerCryptomatorComponent gets generated by Dagger.
 	// Run Maven and include target/generated-sources/annotations in your IDE.
-	private static final CryptomatorComponent CRYPTOMATOR_COMPONENT = DaggerCryptomatorComponent.factory().create(STARTUP_TIME);
-	private static final Logger LOG = LoggerFactory.getLogger(Cryptomator.class);
+	private static final CryptomatorComponent CRYPTOMATOR_COMPONENT;
+	private static final Logger LOG;

 	private final DebugMode debugMode;
 	private final SupportedLanguages supportedLanguages;
@@ -63,7 +72,6 @@ public class Cryptomator {
 			System.out.printf("Cryptomator version %s (build %s)%n", appVer, buildNumber);
 			return;
 		}
-
 		int exitCode = CRYPTOMATOR_COMPONENT.application().run(args);
 		LOG.info("Exit {}", exitCode);
 		System.exit(exitCode); // end remaining non-daemon threads.
@@ -86,7 +94,7 @@ public class Cryptomator {
 		 * Attempts to create an IPC connection to a running Cryptomator instance and sends it the given args.
 		 * If no external process could be reached, the args will be handled by the loopback IPC endpoint.
 		 */
-		try (var communicator = IpcCommunicator.create(env.ipcSocketPath().toList())) {
+		try (var communicator = IpcCommunicator.create(env.getIpcSocketPath().toList())) {
 			if (communicator.isClient()) {
 				communicator.sendHandleLaunchargs(List.of(args));
 				communicator.sendRevealRunningApp();
--- a/src/main/java/org/cryptomator/launcher/SupportedLanguages.java
+++ b/src/main/java/org/cryptomator/launcher/SupportedLanguages.java
@@ -29,12 +29,12 @@ public class SupportedLanguages {

 	@Inject
 	public SupportedLanguages(Settings settings) {
-		var preferredLanguage = settings.languageProperty().get();
+		var preferredLanguage = settings.language.get();
 		preferredLocale = preferredLanguage == null ? Locale.getDefault() : Locale.forLanguageTag(preferredLanguage);
 		var collator = Collator.getInstance(preferredLocale);
 		collator.setStrength(Collator.PRIMARY);
 		var sorted = new ArrayList<String>();
-		sorted.add(0, Settings.DEFAULT_LANGUAGE);
+		sorted.add(0, null);
 		sorted.add(1, ENGLISH);
 		LANGUAGE_TAGS.stream() //
 				.sorted((a, b) -> collator.compare(Locale.forLanguageTag(a).getDisplayName(), Locale.forLanguageTag(b).getDisplayName())) //
--- a/src/main/java/org/cryptomator/logging/DebugMode.java
+++ b/src/main/java/org/cryptomator/logging/DebugMode.java
@@ -26,8 +26,8 @@ public class DebugMode {
 	}

 	public void initialize() {
-		setLogLevels(settings.debugMode().get());
-		settings.debugMode().addListener(this::logLevelChanged);
+		setLogLevels(settings.debugMode.get());
+		settings.debugMode.addListener(this::logLevelChanged);
 	}

 	private void logLevelChanged(@SuppressWarnings("unused") ObservableValue<? extends Boolean> observable, @SuppressWarnings("unused") Boolean oldValue, Boolean newValue) {
--- a/src/main/java/org/cryptomator/ui/common/DefaultSceneFactory.java
+++ b/src/main/java/org/cryptomator/ui/common/DefaultSceneFactory.java
@@ -36,7 +36,7 @@ public class DefaultSceneFactory implements Function<Parent, Scene> {
 	}

 	protected void configureRoot(Parent root) {
-		root.nodeOrientationProperty().bind(settings.userInterfaceOrientation());
+		root.nodeOrientationProperty().bind(settings.userInterfaceOrientation);
 	}

 	protected void configureScene(Scene scene) {
--- a/src/main/java/org/cryptomator/ui/error/ErrorController.java
+++ b/src/main/java/org/cryptomator/ui/error/ErrorController.java
@@ -1,11 +1,13 @@
 package org.cryptomator.ui.error;

-import com.google.common.reflect.TypeToken;
-import com.google.gson.Gson;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.cryptomator.common.Environment;
 import org.cryptomator.common.ErrorCode;
 import org.cryptomator.common.Nullable;
 import org.cryptomator.ui.common.FxController;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;

 import javax.inject.Inject;
 import javax.inject.Named;
@@ -21,8 +23,8 @@ import javafx.scene.Scene;
 import javafx.scene.input.Clipboard;
 import javafx.scene.input.ClipboardContent;
 import javafx.stage.Stage;
+import java.io.IOException;
 import java.io.InputStream;
-import java.io.InputStreamReader;
 import java.net.URI;
 import java.net.URLEncoder;
 import java.net.http.HttpClient;
@@ -38,6 +40,8 @@ import java.util.concurrent.TimeUnit;

 public class ErrorController implements FxController {

+	private static final ObjectMapper JSON = new ObjectMapper();
+	private static final Logger LOG = LoggerFactory.getLogger(ErrorController.class);
 	private static final String ERROR_CODES_URL = "https://gist.githubusercontent.com/cryptobot/accba9fb9555e7192271b85606f97230/raw/errorcodes.json";
 	private static final String SEARCH_URL_FORMAT = "https://github.com/cryptomator/cryptomator/discussions/categories/errors?discussions_q=category:Errors+%s";
 	private static final String REPORT_URL_FORMAT = "https://github.com/cryptomator/cryptomator/discussions/new?category=Errors&title=Error+%s&body=%s";
@@ -137,11 +141,12 @@ public class ErrorController implements FxController {
 	}

 	private void loadHttpResponse(HttpResponse<InputStream> response) {
-		if (response.statusCode() == 200) {
-			Map<String, ErrorDiscussion> errorDiscussionMap = new Gson().fromJson(//
-					new InputStreamReader(response.body(), StandardCharsets.UTF_8),//
-					new TypeToken<Map<String, ErrorDiscussion>>() {
-					}.getType());
+		if (response.statusCode() != 200) {
+			LOG.error("Status code {} when trying to load {} ", response.statusCode(), response.uri());
+		}
+		try {
+			var typeRef = new TypeReference<Map<String, ErrorDiscussion>>() {};
+			Map<String, ErrorDiscussion> errorDiscussionMap = JSON.reader().forType(typeRef).readValue(response.body());

 			if (errorDiscussionMap.values().stream().anyMatch(this::containsMethodCode)) {
 				Comparator<ErrorDiscussion> comp = this::compareByFullErrorCode;
@@ -155,6 +160,8 @@ public class ErrorController implements FxController {
 					matchingErrorDiscussion.set(value.get());
 				}
 			}
+		} catch (IOException e) {
+			LOG.error("Failed to load or parse JSON from " + response.uri(), e);
 		}
 	}

--- a/src/main/java/org/cryptomator/ui/error/ErrorDiscussion.java
+++ b/src/main/java/org/cryptomator/ui/error/ErrorDiscussion.java
@@ -1,12 +1,21 @@
 package org.cryptomator.ui.error;

+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ErrorDiscussion {

+	@JsonProperty
 	int upvoteCount;
+	@JsonProperty
 	String title;
+	@JsonProperty
 	String url;
+	@JsonProperty
 	Answer answer;

+	@JsonIgnoreProperties(ignoreUnknown = true)
 	static class Answer {

 	}
--- a/src/main/java/org/cryptomator/ui/fxapp/AutoUnlocker.java
+++ b/src/main/java/org/cryptomator/ui/fxapp/AutoUnlocker.java
@@ -36,7 +36,7 @@ public class AutoUnlocker {

 	public void tryUnlockForTimespan(int timespan, TimeUnit timeUnit) {
 		// Unlock all available auto unlock vaults
-		Predicate<Vault> shouldAutoUnlock = v -> v.getVaultSettings().unlockAfterStartup().get();
+		Predicate<Vault> shouldAutoUnlock = v -> v.getVaultSettings().unlockAfterStartup.get();
 		unlockSequentially(vaults.stream().filter(shouldAutoUnlock)).thenRun(() -> startUnlockMissing(timespan, timeUnit));
 	}

@@ -80,6 +80,6 @@ public class AutoUnlocker {
 	private Stream<Vault> getMissingAutoUnlockVaults() {
 		return vaults.stream()
 				.filter(Vault::isMissing)
-				.filter(v -> v.getVaultSettings().unlockAfterStartup().get());
+				.filter(v -> v.getVaultSettings().unlockAfterStartup.get());
 	}
 }
--- a/src/main/java/org/cryptomator/ui/fxapp/FxApplication.java
+++ b/src/main/java/org/cryptomator/ui/fxapp/FxApplication.java
@@ -45,7 +45,7 @@ public class FxApplication {

 		// init system tray
 		final boolean hasTrayIcon;
-		if (settings.showTrayIcon().get() && trayMenu.get().isSupported()) {
+		if (settings.showTrayIcon.get() && trayMenu.get().isSupported()) {
 			trayMenu.get().initializeTrayIcon();
 			Platform.setImplicitExit(false); // don't quit when closing all windows
 			hasTrayIcon = true;
@@ -55,7 +55,7 @@ public class FxApplication {

 		// show main window
 		appWindows.showMainWindow().thenAccept(stage -> {
-			if (settings.startHidden().get()) {
+			if (settings.startHidden.get()) {
 				if (hasTrayIcon) {
 					stage.hide();
 				} else {
--- a/src/main/java/org/cryptomator/ui/fxapp/FxApplicationStyle.java
+++ b/src/main/java/org/cryptomator/ui/fxapp/FxApplicationStyle.java
@@ -36,8 +36,8 @@ public class FxApplicationStyle {
 	}

 	public void initialize() {
-		settings.theme().addListener(this::appThemeChanged);
-		loadSelectedStyleSheet(settings.theme().get());
+		settings.theme.addListener(this::appThemeChanged);
+		loadSelectedStyleSheet(settings.theme.get());
 	}

 	private void appThemeChanged(@SuppressWarnings("unused") ObservableValue<? extends UiTheme> observable, @SuppressWarnings("unused") UiTheme oldValue, UiTheme newValue) {
--- a/src/main/java/org/cryptomator/ui/fxapp/FxApplicationTerminator.java
+++ b/src/main/java/org/cryptomator/ui/fxapp/FxApplicationTerminator.java
@@ -107,7 +107,7 @@ public class FxApplicationTerminator {

 		if (allowQuitWithoutPrompt.get()) {
 			exitingResponse.performQuit();
-		} else if (settings.autoCloseVaults().get() && !preventQuitWithGracefulLock.get()) {
+		} else if (settings.autoCloseVaults.get() && !preventQuitWithGracefulLock.get()) {
 			var lockAllTask = vaultService.createLockAllTask(vaults.filtered(Vault::isUnlocked), false);
 			lockAllTask.setOnSucceeded(event -> {
 				LOG.info("Locked remaining vaults was succesful.");
--- a/src/main/java/org/cryptomator/ui/fxapp/UpdateChecker.java
+++ b/src/main/java/org/cryptomator/ui/fxapp/UpdateChecker.java
@@ -38,7 +38,7 @@ public class UpdateChecker {
 	}

 	public void automaticallyCheckForUpdatesIfEnabled() {
-		if (settings.checkForUpdates().get()) {
+		if (settings.checkForUpdates.get()) {
 			startCheckingForUpdates(AUTOCHECK_DELAY);
 		}
 	}
--- a/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerModule.java
+++ b/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerModule.java
@@ -70,7 +70,7 @@ public abstract class UpdateCheckerModule {
 	@Named("checkForUpdatesInterval")
 	@FxApplicationScoped
 	static ObjectBinding<Duration> provideCheckForUpdateInterval(Settings settings) {
-		return Bindings.when(settings.checkForUpdates()).then(UPDATE_CHECK_INTERVAL).otherwise(DISABLED_UPDATE_CHECK_INTERVAL);
+		return Bindings.when(settings.checkForUpdates).then(UPDATE_CHECK_INTERVAL).otherwise(DISABLED_UPDATE_CHECK_INTERVAL);
 	}

 	@Provides
--- a/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerTask.java
+++ b/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerTask.java
@@ -1,9 +1,7 @@
 package org.cryptomator.ui.fxapp;

+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.io.ByteStreams;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.reflect.TypeToken;
 import org.apache.commons.lang3.SystemUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -11,20 +9,16 @@ import org.slf4j.LoggerFactory;
 import javafx.concurrent.Task;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
 import java.net.http.HttpResponse;
-import java.nio.charset.StandardCharsets;
-import java.util.Map;

 public class UpdateCheckerTask extends Task<String> {

+	private static final ObjectMapper JSON = new ObjectMapper();
 	private static final Logger LOG = LoggerFactory.getLogger(UpdateCheckerTask.class);

 	private static final long MAX_RESPONSE_SIZE = 10L * 1024; // 10kb should be sufficient. protect against flooding
-	private static final Gson GSON = new GsonBuilder().setLenient().create();

 	private final HttpClient httpClient;
 	private final HttpRequest checkForUpdatesRequest;
@@ -48,16 +42,14 @@ public class UpdateCheckerTask extends Task<String> {

 	private String processBody(HttpResponse<InputStream> response) throws IOException {
 		try (InputStream in = response.body(); //
-			 InputStream limitedIn = ByteStreams.limit(in, MAX_RESPONSE_SIZE); //
-			 Reader reader = new InputStreamReader(limitedIn, StandardCharsets.UTF_8)) {
-			Map<String, String> map = GSON.fromJson(reader, new TypeToken<Map<String, String>>() {
-			}.getType());
+			 InputStream limitedIn = ByteStreams.limit(in, MAX_RESPONSE_SIZE)) {
+			var json = JSON.reader().readTree(limitedIn);
 			if (SystemUtils.IS_OS_MAC_OSX) {
-				return map.get("mac");
+				return json.get("mac").asText();
 			} else if (SystemUtils.IS_OS_WINDOWS) {
-				return map.get("win");
+				return json.get("win").asText();
 			} else if (SystemUtils.IS_OS_LINUX) {
-				return map.get("linux");
+				return json.get("linux").asText();
 			} else {
 				throw new IllegalStateException("Unsupported operating system");
 			}
--- a/src/main/java/org/cryptomator/ui/keyloading/hub/AuthFlowTask.java
+++ b/src/main/java/org/cryptomator/ui/keyloading/hub/AuthFlowTask.java
@@ -1,6 +1,6 @@
 package org.cryptomator.ui.keyloading.hub;

-import com.google.gson.JsonParser;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import io.github.coffeelibs.tinyoauth2client.AuthFlow;
 import io.github.coffeelibs.tinyoauth2client.TinyOAuth2;
 import io.github.coffeelibs.tinyoauth2client.http.response.Response;
@@ -12,6 +12,8 @@ import java.util.function.Consumer;

 class AuthFlowTask extends Task<String> {

+	private static final ObjectMapper JSON = new ObjectMapper();
+
 	private final HubConfig hubConfig;
 	private final AuthFlowContext authFlowContext;
 	private final Consumer<URI> redirectUriConsumer;
@@ -39,8 +41,7 @@ class AuthFlowTask extends Task<String> {
 		if (response.statusCode() != 200) {
 			throw new NotOkResponseException("Authorization returned status code " + response.statusCode());
 		}
-		var json = JsonParser.parseString(response.body());
-		return json.getAsJsonObject().get("access_token").getAsString();
+		return JSON.reader().readTree(response.body()).get("access_token").asText();
 	}

 	public static class NotOkResponseException extends RuntimeException {
--- a/src/main/java/org/cryptomator/ui/keyloading/hub/CreateDeviceDto.java
+++ b/src/main/java/org/cryptomator/ui/keyloading/hub/CreateDeviceDto.java
@@ -1,9 +1,5 @@
 package org.cryptomator.ui.keyloading.hub;

-class CreateDeviceDto {
-
-	public String id;
-	public String name;
-	public String publicKey;
+record CreateDeviceDto(String id, String name, String publicKey) {

 }
--- a/src/main/java/org/cryptomator/ui/keyloading/hub/HttpHelper.java
+++ b/src/main/java/org/cryptomator/ui/keyloading/hub/HttpHelper.java
@@ -1,14 +1,10 @@
 package org.cryptomator.ui.keyloading.hub;

 import com.google.common.io.CharStreams;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonParseException;
-import com.google.gson.JsonParser;

 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
-import java.io.Reader;
 import java.net.http.HttpResponse;
 import java.nio.charset.StandardCharsets;

--- a/src/main/java/org/cryptomator/ui/keyloading/hub/HubConfig.java
+++ b/src/main/java/org/cryptomator/ui/keyloading/hub/HubConfig.java
@@ -1,6 +1,9 @@
 package org.cryptomator.ui.keyloading.hub;

+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
 // needs to be accessible by JSON decoder
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HubConfig {

 	public String clientId;
--- a/src/main/java/org/cryptomator/ui/keyloading/hub/RegisterDeviceController.java
+++ b/src/main/java/org/cryptomator/ui/keyloading/hub/RegisterDeviceController.java
@@ -2,9 +2,9 @@ package org.cryptomator.ui.keyloading.hub;

 import com.auth0.jwt.JWT;
 import com.auth0.jwt.interfaces.DecodedJWT;
+import com.fasterxml.jackson.core.JacksonException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.io.BaseEncoding;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
 import com.nimbusds.jose.JWEObject;
 import dagger.Lazy;
 import org.cryptomator.common.settings.DeviceKey;
@@ -46,7 +46,7 @@ import java.util.concurrent.atomic.AtomicReference;
 public class RegisterDeviceController implements FxController {

 	private static final Logger LOG = LoggerFactory.getLogger(RegisterDeviceController.class);
-	private static final Gson GSON = new GsonBuilder().setLenient().create();
+	private static final ObjectMapper JSON = new ObjectMapper().setDefaultLeniency(true);
 	private static final List<Integer> EXPECTED_RESPONSE_CODES = List.of(201, 409);

 	private final Stage window;
@@ -101,11 +101,8 @@ public class RegisterDeviceController implements FxController {

 		var keyUri = URI.create(hubConfig.devicesResourceUrl + deviceId);
 		var deviceKey = keyPair.getPublic().getEncoded();
-		var dto = new CreateDeviceDto();
-		dto.id = deviceId;
-		dto.name = deviceNameField.getText();
-		dto.publicKey = BaseEncoding.base64Url().omitPadding().encode(deviceKey);
-		var json = GSON.toJson(dto); // TODO: do we want to keep GSON? doesn't support records -.-
+		var dto = new CreateDeviceDto(deviceId, deviceNameField.getText(), BaseEncoding.base64Url().omitPadding().encode(deviceKey));
+		var json = toJson(dto);
 		var request = HttpRequest.newBuilder(keyUri) //
 				.header("Authorization", "Bearer " + bearerToken) //
 				.header("Content-Type", "application/json").PUT(HttpRequest.BodyPublishers.ofString(json, StandardCharsets.UTF_8)) //
@@ -127,6 +124,14 @@ public class RegisterDeviceController implements FxController {
 				}, Platform::runLater);
 	}

+	private String toJson(CreateDeviceDto dto) {
+		try {
+			return JSON.writer().writeValueAsString(dto);
+		} catch (JacksonException e) {
+			throw new IllegalStateException("Failed to serialize DTO", e);
+		}
+	}
+
 	private void handleResponse(HttpResponse<Void> voidHttpResponse) {
 		assert EXPECTED_RESPONSE_CODES.contains(voidHttpResponse.statusCode());

--- a/src/main/java/org/cryptomator/ui/mainwindow/MainWindowTitleController.java
+++ b/src/main/java/org/cryptomator/ui/mainwindow/MainWindowTitleController.java
@@ -49,7 +49,7 @@ public class MainWindowTitleController implements FxController {
 		this.updateAvailable = updateChecker.latestVersionProperty().isNotNull();
 		this.licenseHolder = licenseHolder;
 		this.settings = settings;
-		this.showMinimizeButton = Bindings.createBooleanBinding(this::isShowMinimizeButton, settings.showMinimizeButton(), settings.showTrayIcon());
+		this.showMinimizeButton = Bindings.createBooleanBinding(this::isShowMinimizeButton, settings.showMinimizeButton, settings.showTrayIcon);
 	}

 	@FXML
@@ -85,10 +85,10 @@ public class MainWindowTitleController implements FxController {
 	}

 	private void saveWindowSettings() {
-		settings.windowYPositionProperty().setValue(window.getY());
-		settings.windowXPositionProperty().setValue(window.getX());
-		settings.windowWidthProperty().setValue(window.getWidth());
-		settings.windowHeightProperty().setValue(window.getHeight());
+		settings.windowXPosition.setValue(window.getX());
+		settings.windowYPosition.setValue(window.getY());
+		settings.windowWidth.setValue(window.getWidth());
+		settings.windowHeight.setValue(window.getHeight());
 	}

 	@FXML
@@ -139,7 +139,7 @@ public class MainWindowTitleController implements FxController {
 	}

 	public ReadOnlyBooleanProperty debugModeEnabledProperty() {
-		return settings.debugMode();
+		return settings.debugMode;
 	}

 	public boolean isDebugModeEnabled() {
@@ -152,6 +152,6 @@ public class MainWindowTitleController implements FxController {

 	public boolean isShowMinimizeButton() {
 		// always show the minimize button if no tray icon is present OR it is explicitly enabled
-		return !trayMenuInitialized || settings.showMinimizeButton().get();
+		return !trayMenuInitialized || settings.showMinimizeButton.get();
 	}
 }
--- a/src/main/java/org/cryptomator/ui/mainwindow/ResizeController.java
+++ b/src/main/java/org/cryptomator/ui/mainwindow/ResizeController.java
@@ -54,7 +54,7 @@ public class ResizeController implements FxController {
 		LOG.trace("init ResizeController");

 		if (neverTouched()) {
-			settings.displayConfigurationProperty().setValue(getMonitorSizes());
+			settings.displayConfiguration.set(getMonitorSizes());
 			return;
 		} else {
 			if (didDisplayConfigurationChange()) {
@@ -65,24 +65,24 @@ public class ResizeController implements FxController {
 				window.setWidth(window.getMinWidth());
 				window.setHeight(window.getMinHeight());
 			} else {
-				window.setHeight(settings.windowHeightProperty().get() > window.getMinHeight() ? settings.windowHeightProperty().get() : window.getMinHeight());
-				window.setWidth(settings.windowWidthProperty().get() > window.getMinWidth() ? settings.windowWidthProperty().get() : window.getMinWidth());
-				window.setX(settings.windowXPositionProperty().get());
-				window.setY(settings.windowYPositionProperty().get());
+				window.setHeight(settings.windowHeight.get() > window.getMinHeight() ? settings.windowHeight.get() : window.getMinHeight());
+				window.setWidth(settings.windowWidth.get() > window.getMinWidth() ? settings.windowWidth.get() : window.getMinWidth());
+				window.setX(settings.windowXPosition.get());
+				window.setY(settings.windowYPosition.get());
 			}
 		}
 		savePositionalSettings();
 	}

 	private boolean neverTouched() {
-		return (settings.windowHeightProperty().get() == 0) && (settings.windowWidthProperty().get() == 0) && (settings.windowXPositionProperty().get() == 0) && (settings.windowYPositionProperty().get() == 0);
+		return (settings.windowHeight.get() == 0) && (settings.windowWidth.get() == 0) && (settings.windowXPosition.get() == 0) && (settings.windowYPosition.get() == 0);
 	}

 	private boolean didDisplayConfigurationChange() {
 		String currentDisplayConfiguration = getMonitorSizes();
-		String settingsDisplayConfiguration = settings.displayConfigurationProperty().get();
+		String settingsDisplayConfiguration = settings.displayConfiguration.get();
 		boolean configurationHasChanged = !settingsDisplayConfiguration.equals(currentDisplayConfiguration);
-		if (configurationHasChanged) settings.displayConfigurationProperty().setValue(currentDisplayConfiguration);
+		if (configurationHasChanged) settings.displayConfiguration.set(currentDisplayConfiguration);
 		return configurationHasChanged;
 	}

@@ -170,10 +170,10 @@ public class ResizeController implements FxController {

 	@FXML
 	public void savePositionalSettings() {
-		settings.windowHeightProperty().setValue(window.getHeight());
-		settings.windowWidthProperty().setValue(window.getWidth());
-		settings.windowYPositionProperty().setValue(window.getY());
-		settings.windowXPositionProperty().setValue(window.getX());
+		settings.windowWidth.setValue(window.getWidth());
+		settings.windowHeight.setValue(window.getHeight());
+		settings.windowXPosition.setValue(window.getX());
+		settings.windowYPosition.setValue(window.getY());
 	}

 	public BooleanBinding showResizingArrowsProperty() {
--- a/src/main/java/org/cryptomator/ui/mainwindow/VaultDetailMissingVaultController.java
+++ b/src/main/java/org/cryptomator/ui/mainwindow/VaultDetailMissingVaultController.java
@@ -50,7 +50,7 @@ public class VaultDetailMissingVaultController implements FxController {
 		fileChooser.getExtensionFilters().add(new FileChooser.ExtensionFilter(resourceBundle.getString("addvaultwizard.existing.filePickerMimeDesc"), CRYPTOMATOR_FILENAME_GLOB));
 		File masterkeyFile = fileChooser.showOpenDialog(window);
 		if (masterkeyFile != null) {
-			vault.get().getVaultSettings().path().setValue(masterkeyFile.toPath().toAbsolutePath().getParent());
+			vault.get().getVaultSettings().path.setValue(masterkeyFile.toPath().toAbsolutePath().getParent());
 			recheck();
 		}
 	}
--- a/src/main/java/org/cryptomator/ui/preferences/GeneralPreferencesController.java
+++ b/src/main/java/org/cryptomator/ui/preferences/GeneralPreferencesController.java
@@ -55,17 +55,17 @@ public class GeneralPreferencesController implements FxController {

 	@FXML
 	public void initialize() {
-		startHiddenCheckbox.selectedProperty().bindBidirectional(settings.startHidden());
-		autoCloseVaultsCheckbox.selectedProperty().bindBidirectional(settings.autoCloseVaults());
-		debugModeCheckbox.selectedProperty().bindBidirectional(settings.debugMode());
+		startHiddenCheckbox.selectedProperty().bindBidirectional(settings.startHidden);
+		autoCloseVaultsCheckbox.selectedProperty().bindBidirectional(settings.autoCloseVaults);
+		debugModeCheckbox.selectedProperty().bindBidirectional(settings.debugMode);
 		autoStartProvider.ifPresent(autoStart -> autoStartCheckbox.setSelected(autoStart.isEnabled()));

 		var keychainSettingsConverter = new KeychainProviderClassNameConverter(keychainAccessProviders);
 		keychainBackendChoiceBox.getItems().addAll(keychainAccessProviders);
-		keychainBackendChoiceBox.setValue(keychainSettingsConverter.fromString(settings.keychainProvider().get()));
+		keychainBackendChoiceBox.setValue(keychainSettingsConverter.fromString(settings.keychainProvider.get()));
 		keychainBackendChoiceBox.setConverter(new KeychainProviderDisplayNameConverter());
-		Bindings.bindBidirectional(settings.keychainProvider(), keychainBackendChoiceBox.valueProperty(), keychainSettingsConverter);
-		useKeychainCheckbox.selectedProperty().bindBidirectional(settings.useKeychain());
+		Bindings.bindBidirectional(settings.keychainProvider, keychainBackendChoiceBox.valueProperty(), keychainSettingsConverter);
+		useKeychainCheckbox.selectedProperty().bindBidirectional(settings.useKeychain);
 		keychainBackendChoiceBox.disableProperty().bind(useKeychainCheckbox.selectedProperty().not());
 	}

--- a/src/main/java/org/cryptomator/ui/preferences/InterfacePreferencesController.java
+++ b/src/main/java/org/cryptomator/ui/preferences/InterfacePreferencesController.java
@@ -57,22 +57,22 @@ public class InterfacePreferencesController implements FxController {
 	@FXML
 	public void initialize() {
 		themeChoiceBox.getItems().addAll(UiTheme.applicableValues());
-		if (!themeChoiceBox.getItems().contains(settings.theme().get())) {
-			settings.theme().set(UiTheme.LIGHT);
+		if (!themeChoiceBox.getItems().contains(settings.theme.get())) {
+			settings.theme.set(UiTheme.LIGHT);
 		}
-		themeChoiceBox.valueProperty().bindBidirectional(settings.theme());
+		themeChoiceBox.valueProperty().bindBidirectional(settings.theme);
 		themeChoiceBox.setConverter(new UiThemeConverter(resourceBundle));

-		showMinimizeButtonCheckbox.selectedProperty().bindBidirectional(settings.showMinimizeButton());
+		showMinimizeButtonCheckbox.selectedProperty().bindBidirectional(settings.showMinimizeButton);

-		showTrayIconCheckbox.selectedProperty().bindBidirectional(settings.showTrayIcon());
+		showTrayIconCheckbox.selectedProperty().bindBidirectional(settings.showTrayIcon);

 		preferredLanguageChoiceBox.getItems().addAll(supportedLanguages.getLanguageTags());
-		preferredLanguageChoiceBox.valueProperty().bindBidirectional(settings.languageProperty());
+		preferredLanguageChoiceBox.valueProperty().bindBidirectional(settings.language);
 		preferredLanguageChoiceBox.setConverter(new LanguageTagConverter(resourceBundle));

-		nodeOrientationLtr.setSelected(settings.userInterfaceOrientation().get() == NodeOrientation.LEFT_TO_RIGHT);
-		nodeOrientationRtl.setSelected(settings.userInterfaceOrientation().get() == NodeOrientation.RIGHT_TO_LEFT);
+		nodeOrientationLtr.setSelected(settings.userInterfaceOrientation.get() == NodeOrientation.LEFT_TO_RIGHT);
+		nodeOrientationRtl.setSelected(settings.userInterfaceOrientation.get() == NodeOrientation.RIGHT_TO_LEFT);
 		nodeOrientation.selectedToggleProperty().addListener(this::toggleNodeOrientation);
 	}

@@ -87,9 +87,9 @@ public class InterfacePreferencesController implements FxController {

 	private void toggleNodeOrientation(@SuppressWarnings("unused") ObservableValue<? extends Toggle> observable, @SuppressWarnings("unused") Toggle oldValue, Toggle newValue) {
 		if (nodeOrientationLtr.equals(newValue)) {
-			settings.userInterfaceOrientation().set(NodeOrientation.LEFT_TO_RIGHT);
+			settings.userInterfaceOrientation.set(NodeOrientation.LEFT_TO_RIGHT);
 		} else if (nodeOrientationRtl.equals(newValue)) {
-			settings.userInterfaceOrientation().set(NodeOrientation.RIGHT_TO_LEFT);
+			settings.userInterfaceOrientation.set(NodeOrientation.RIGHT_TO_LEFT);
 		} else {
 			LOG.warn("Unexpected toggle option {}", newValue);
 		}
--- a/src/main/java/org/cryptomator/ui/preferences/SupporterCertificateController.java
+++ b/src/main/java/org/cryptomator/ui/preferences/SupporterCertificateController.java
@@ -48,7 +48,7 @@ public class SupporterCertificateController implements FxController {
 	private void registrationKeyChanged(@SuppressWarnings("unused") ObservableValue<? extends String> observable, @SuppressWarnings("unused") String oldValue, String newValue) {
 		licenseHolder.validateAndStoreLicense(newValue);
 		if (!licenseHolder.isValidLicense()) {
-			settings.theme().set(UiTheme.LIGHT);
+			settings.theme.set(UiTheme.LIGHT);
 		}
 	}

--- a/src/main/java/org/cryptomator/ui/preferences/UpdatesPreferencesController.java
+++ b/src/main/java/org/cryptomator/ui/preferences/UpdatesPreferencesController.java
@@ -42,7 +42,7 @@ public class UpdatesPreferencesController implements FxController {
 	}

 	public void initialize() {
-		checkForUpdatesCheckbox.selectedProperty().bindBidirectional(settings.checkForUpdates());
+		checkForUpdatesCheckbox.selectedProperty().bindBidirectional(settings.checkForUpdates);
 	}

 	@FXML
--- a/src/main/java/org/cryptomator/ui/preferences/VolumePreferencesController.java
+++ b/src/main/java/org/cryptomator/ui/preferences/VolumePreferencesController.java
@@ -27,6 +27,8 @@ import java.util.concurrent.atomic.AtomicReference;
 public class VolumePreferencesController implements FxController {

 	private static final String DOCS_MOUNTING_URL = "https://docs.cryptomator.org/en/1.7/desktop/volume-type/";
+	private static final int MIN_PORT = 1024;
+	private static final int MAX_PORT = 65535;

 	private final Settings settings;
 	private final ObservableValue<MountService> selectedMountService;
@@ -51,7 +53,7 @@ public class VolumePreferencesController implements FxController {
 		this.resourceBundle = resourceBundle;

 		var fallbackProvider = mountProviders.stream().findFirst().orElse(null);
-		this.selectedMountService = ObservableUtil.mapWithDefault(settings.mountService(), serviceName -> mountProviders.stream().filter(s -> s.getClass().getName().equals(serviceName)).findFirst().orElse(fallbackProvider), fallbackProvider);
+		this.selectedMountService = ObservableUtil.mapWithDefault(settings.mountService, serviceName -> mountProviders.stream().filter(s -> s.getClass().getName().equals(serviceName)).findFirst().orElse(fallbackProvider), fallbackProvider);
 		this.loopbackPortSupported = BooleanExpression.booleanExpression(selectedMountService.map(s -> s.hasCapability(MountCapability.LOOPBACK_PORT)));
 		this.mountToDirSupported = selectedMountService.map(s -> s.hasCapability(MountCapability.MOUNT_WITHIN_EXISTING_PARENT) || s.hasCapability(MountCapability.MOUNT_TO_EXISTING_DIR));
 		this.mountToDriveLetterSupported = selectedMountService.map(s -> s.hasCapability(MountCapability.MOUNT_AS_DRIVE_LETTER));
@@ -69,15 +71,15 @@ public class VolumePreferencesController implements FxController {
 		volumeTypeChoiceBox.getItems().add(null);
 		volumeTypeChoiceBox.getItems().addAll(mountProviders);
 		volumeTypeChoiceBox.setConverter(new MountServiceConverter());
-		boolean autoSelected = settings.mountService().get() == null;
+		boolean autoSelected = settings.mountService.get() == null;
 		volumeTypeChoiceBox.getSelectionModel().select(autoSelected ? null : selectedMountService.getValue());
 		volumeTypeChoiceBox.valueProperty().addListener((observableValue, oldProvider, newProvider) -> {
 			var toSet = Optional.ofNullable(newProvider).map(nP -> nP.getClass().getName()).orElse(null);
-			settings.mountService().set(toSet);
+			settings.mountService.set(toSet);
 		});

-		loopbackPortField.setText(String.valueOf(settings.port().get()));
-		loopbackPortApplyButton.visibleProperty().bind(settings.port().asString().isNotEqualTo(loopbackPortField.textProperty()));
+		loopbackPortField.setText(String.valueOf(settings.port.get()));
+		loopbackPortApplyButton.visibleProperty().bind(settings.port.asString().isNotEqualTo(loopbackPortField.textProperty()));
 		loopbackPortApplyButton.disableProperty().bind(Bindings.createBooleanBinding(this::validateLoopbackPort, loopbackPortField.textProperty()).not());
 	}

@@ -85,7 +87,7 @@ public class VolumePreferencesController implements FxController {
 		try {
 			int port = Integer.parseInt(loopbackPortField.getText());
 			return port == 0 // choose port automatically
-					|| port >= Settings.MIN_PORT && port <= Settings.MAX_PORT; // port within range
+					|| port >= MIN_PORT && port <= MAX_PORT; // port within range
 		} catch (NumberFormatException e) {
 			return false;
 		}
@@ -93,7 +95,7 @@ public class VolumePreferencesController implements FxController {

 	public void doChangeLoopbackPort() {
 		if (validateLoopbackPort()) {
-			settings.port().set(Integer.parseInt(loopbackPortField.getText()));
+			settings.port.set(Integer.parseInt(loopbackPortField.getText()));
 		}
 	}

--- a/src/main/java/org/cryptomator/ui/unlock/UnlockInvalidMountPointController.java
+++ b/src/main/java/org/cryptomator/ui/unlock/UnlockInvalidMountPointController.java
@@ -1,5 +1,6 @@
 package org.cryptomator.ui.unlock;

+import org.cryptomator.common.mount.MountPointInUseException;
 import org.cryptomator.common.mount.MountPointNotExistsException;
 import org.cryptomator.common.mount.MountPointNotSupportedException;
 import org.cryptomator.common.vaults.Vault;
@@ -41,6 +42,7 @@ public class UnlockInvalidMountPointController implements FxController {
 		var translationKey = switch (e) {
 			case MountPointNotSupportedException x -> "unlock.error.customPath.description.notSupported";
 			case MountPointNotExistsException x -> "unlock.error.customPath.description.notExists";
+			case MountPointInUseException x -> "unlock.error.customPath.description.inUse";
 			default -> "unlock.error.customPath.description.generic";
 		};
 		dialogDescription.setFormat(resourceBundle.getString(translationKey));
--- a/src/main/java/org/cryptomator/ui/unlock/UnlockSuccessController.java
+++ b/src/main/java/org/cryptomator/ui/unlock/UnlockSuccessController.java
@@ -50,7 +50,7 @@ public class UnlockSuccessController implements FxController {
 		LOG.trace("UnlockSuccessController.close()");
 		window.close();
 		if (rememberChoiceCheckbox.isSelected()) {
-			vault.getVaultSettings().actionAfterUnlock().setValue(WhenUnlocked.IGNORE);
+			vault.getVaultSettings().actionAfterUnlock.setValue(WhenUnlocked.IGNORE);
 		}
 	}

@@ -73,7 +73,7 @@ public class UnlockSuccessController implements FxController {
 		});
 		executor.execute(revealTask);
 		if (rememberChoiceCheckbox.isSelected()) {
-			vault.getVaultSettings().actionAfterUnlock().setValue(WhenUnlocked.REVEAL);
+			vault.getVaultSettings().actionAfterUnlock.setValue(WhenUnlocked.REVEAL);
 		}
 	}

--- a/src/main/java/org/cryptomator/ui/unlock/UnlockWorkflow.java
+++ b/src/main/java/org/cryptomator/ui/unlock/UnlockWorkflow.java
@@ -94,7 +94,7 @@ public class UnlockWorkflow extends Task<Boolean> {
 	protected void succeeded() {
 		LOG.info("Unlock of '{}' succeeded.", vault.getDisplayName());

-		switch (vault.getVaultSettings().actionAfterUnlock().get()) {
+		switch (vault.getVaultSettings().actionAfterUnlock.get()) {
 			case ASK -> Platform.runLater(() -> {
 				window.setScene(successScene.get());
 				window.show();
--- a/src/main/java/org/cryptomator/ui/vaultoptions/GeneralVaultOptionsController.java
+++ b/src/main/java/org/cryptomator/ui/vaultoptions/GeneralVaultOptionsController.java
@@ -45,21 +45,21 @@ public class GeneralVaultOptionsController implements FxController {

 	@FXML
 	public void initialize() {
-		vaultName.textProperty().set(vault.getVaultSettings().displayName().get());
+		vaultName.textProperty().set(vault.getVaultSettings().displayName.get());
 		vaultName.focusedProperty().addListener(this::trimVaultNameOnFocusLoss);
 		vaultName.setTextFormatter(new TextFormatter<>(this::checkVaultNameLength));
-		unlockOnStartupCheckbox.selectedProperty().bindBidirectional(vault.getVaultSettings().unlockAfterStartup());
+		unlockOnStartupCheckbox.selectedProperty().bindBidirectional(vault.getVaultSettings().unlockAfterStartup);
 		actionAfterUnlockChoiceBox.getItems().addAll(WhenUnlocked.values());
-		actionAfterUnlockChoiceBox.valueProperty().bindBidirectional(vault.getVaultSettings().actionAfterUnlock());
+		actionAfterUnlockChoiceBox.valueProperty().bindBidirectional(vault.getVaultSettings().actionAfterUnlock);
 		actionAfterUnlockChoiceBox.setConverter(new WhenUnlockedConverter(resourceBundle));
-		lockAfterTimeCheckbox.selectedProperty().bindBidirectional(vault.getVaultSettings().autoLockWhenIdle());
-		Bindings.bindBidirectional(lockTimeInMinutesTextField.textProperty(), vault.getVaultSettings().autoLockIdleSeconds(), new IdleTimeSecondsConverter());
+		lockAfterTimeCheckbox.selectedProperty().bindBidirectional(vault.getVaultSettings().autoLockWhenIdle);
+		Bindings.bindBidirectional(lockTimeInMinutesTextField.textProperty(), vault.getVaultSettings().autoLockIdleSeconds, new IdleTimeSecondsConverter());
 	}

 	private void trimVaultNameOnFocusLoss(Observable observable, Boolean wasFocussed, Boolean isFocussed) {
 		if (!isFocussed) {
 			var trimmed = vaultName.getText().trim();
-			vault.getVaultSettings().displayName().set(trimmed);
+			vault.getVaultSettings().displayName.set(trimmed);
 		}
 	}

--- a/src/main/java/org/cryptomator/ui/vaultoptions/MountOptionsController.java
+++ b/src/main/java/org/cryptomator/ui/vaultoptions/MountOptionsController.java
@@ -74,18 +74,18 @@ public class MountOptionsController implements FxController {
 		this.mountpointDriveLetterSupported = mountService.map(as -> as.service().hasCapability(MountCapability.MOUNT_AS_DRIVE_LETTER));
 		this.mountFlagsSupported = mountService.map(as -> as.service().hasCapability(MountCapability.MOUNT_FLAGS));
 		this.readOnlySupported = mountService.map(as -> as.service().hasCapability(MountCapability.READ_ONLY));
-		this.directoryPath = vault.getVaultSettings().mountPoint().map(p -> isDriveLetter(p) ? null : p.toString());
+		this.directoryPath = vault.getVaultSettings().mountPoint.map(p -> isDriveLetter(p) ? null : p.toString());
 		this.applicationWindows = applicationWindows;
 	}

 	@FXML
 	public void initialize() {
 		// readonly:
-		readOnlyCheckbox.selectedProperty().bindBidirectional(vaultSettings.usesReadOnlyMode());
+		readOnlyCheckbox.selectedProperty().bindBidirectional(vaultSettings.usesReadOnlyMode);

 		// custom mount flags:
 		mountFlagsField.disableProperty().bind(customMountFlagsCheckbox.selectedProperty().not());
-		customMountFlagsCheckbox.setSelected(!Strings.isNullOrEmpty(vaultSettings.mountFlags().getValue()));
+		customMountFlagsCheckbox.setSelected(!Strings.isNullOrEmpty(vaultSettings.mountFlags.getValue()));
 		toggleUseCustomMountFlags();

 		//driveLetter choice box
@@ -93,14 +93,14 @@ public class MountOptionsController implements FxController {
 		driveLetterSelection.setConverter(new WinDriveLetterLabelConverter(windowsDriveLetters, resourceBundle));

 		//mountPoint toggle group
-		var mountPoint = vaultSettings.getMountPoint();
+		var mountPoint = vaultSettings.mountPoint.get();
 		if (mountPoint == null) {
 			//prepare and select auto
 			mountPointToggleGroup.selectToggle(mountPointAutoBtn);
 		} else if (mountPoint.getParent() == null && isDriveLetter(mountPoint)) {
 			//prepare and select drive letter
 			mountPointToggleGroup.selectToggle(mountPointDriveLetterBtn);
-			driveLetterSelection.valueProperty().bindBidirectional(vaultSettings.mountPoint());
+			driveLetterSelection.valueProperty().bindBidirectional(vaultSettings.mountPoint);
 		} else {
 			//prepare and select dir
 			mountPointToggleGroup.selectToggle(mountPointDirBtn);
@@ -118,14 +118,14 @@ public class MountOptionsController implements FxController {
 		if (customMountFlagsCheckbox.isSelected()) {
 			readOnlyCheckbox.setSelected(false); // to prevent invalid states
 			mountFlagsField.textProperty().unbind();
-			var mountFlags = vaultSettings.mountFlags().get();
+			var mountFlags = vaultSettings.mountFlags.get();
 			if (mountFlags == null || mountFlags.isBlank()) {
-				vaultSettings.mountFlags().set(defaultMountFlags.getValue());
+				vaultSettings.mountFlags.set(defaultMountFlags.getValue());
 			}
-			mountFlagsField.textProperty().bindBidirectional(vaultSettings.mountFlags());
+			mountFlagsField.textProperty().bindBidirectional(vaultSettings.mountFlags);
 		} else {
-			mountFlagsField.textProperty().unbindBidirectional(vaultSettings.mountFlags());
-			vaultSettings.mountFlags().set(null);
+			mountFlagsField.textProperty().unbindBidirectional(vaultSettings.mountFlags);
+			vaultSettings.mountFlags.set(null);
 			mountFlagsField.textProperty().bind(defaultMountFlags);
 		}
 	}
@@ -134,7 +134,7 @@ public class MountOptionsController implements FxController {
 	public void chooseCustomMountPoint() {
 		try {
 			Path chosenPath = chooseCustomMountPointInternal();
-			vaultSettings.mountPoint().set(chosenPath);
+			vaultSettings.mountPoint.set(chosenPath);
 		} catch (NoDirSelectedException e) {
 			//no-op
 		}
@@ -151,7 +151,7 @@ public class MountOptionsController implements FxController {
 		DirectoryChooser directoryChooser = new DirectoryChooser();
 		directoryChooser.setTitle(resourceBundle.getString("vaultOptions.mount.mountPoint.directoryPickerTitle"));
 		try {
-			var mp = vaultSettings.mountPoint().get();
+			var mp = vaultSettings.mountPoint.get();
 			var initialDir = mp != null && !isDriveLetter(mp) ? mp : Path.of(System.getProperty("user.home"));

 			if (Files.isDirectory(initialDir)) {
@@ -170,13 +170,13 @@ public class MountOptionsController implements FxController {

 	private void selectedToggleChanged(ObservableValue<? extends Toggle> observable, Toggle oldToggle, Toggle newToggle) {
 		//Remark: the mountpoint corresponding to the newToggle must be null, otherwise it would not be new!
-		driveLetterSelection.valueProperty().unbindBidirectional(vaultSettings.mountPoint());
+		driveLetterSelection.valueProperty().unbindBidirectional(vaultSettings.mountPoint);
 		if (mountPointDriveLetterBtn.equals(newToggle)) {
-			vaultSettings.mountPoint().set(windowsDriveLetters.getFirstDesiredAvailable().orElse(windowsDriveLetters.getAll().stream().findAny().get()));
-			driveLetterSelection.valueProperty().bindBidirectional(vaultSettings.mountPoint());
+			vaultSettings.mountPoint.set(windowsDriveLetters.getFirstDesiredAvailable().orElse(windowsDriveLetters.getAll().stream().findAny().get()));
+			driveLetterSelection.valueProperty().bindBidirectional(vaultSettings.mountPoint);
 		} else if (mountPointDirBtn.equals(newToggle)) {
 			try {
-				vaultSettings.mountPoint().set(chooseCustomMountPointInternal());
+				vaultSettings.mountPoint.set(chooseCustomMountPointInternal());
 			} catch (NoDirSelectedException e) {
 				if (oldToggle != null && !mountPointDirBtn.equals(oldToggle)) {
 					mountPointToggleGroup.selectToggle(oldToggle);
@@ -185,7 +185,7 @@ public class MountOptionsController implements FxController {
 				}
 			}
 		} else {
-			vaultSettings.mountPoint().set(null);
+			vaultSettings.mountPoint.set(null);
 		}
 	}