made Settings and DebugMode a Singleton

main/launcher/src/main/java/org/cryptomator/launcher/Cryptomator.java

@@ -27,6 +27,7 @@ public class Cryptomator {
 			if (endpoint.isConnectedToRemote()) {
 				LOG.info("Found running application instance. Shutting down.");
 			} else {
+				CRYPTOMATOR_COMPONENT.debugMode().initialize();
 				CleanShutdownPerformer.registerShutdownHook();
 				Application.launch(MainApp.class, args);
 			}
@@ -43,12 +44,9 @@ public class Cryptomator {
 	// We need a separate FX Application class, until we can use the module system. See https://stackoverflow.com/q/54756176/4014509
 	public static class MainApp extends Application {
 
-		private Stage primaryStage;
-
 		@Override
 		public void start(Stage primaryStage) {
 			LOG.info("JavaFX application started.");
-			this.primaryStage = primaryStage;
 			primaryStage.setMinWidth(652.0);
 			primaryStage.setMinHeight(440.0);
 
@@ -57,8 +55,6 @@ public class Cryptomator {
 					.mainWindow(primaryStage) //
 					.build();
 
-			fxApplicationComponent.debugMode().initialize();
-
 			MainController mainCtrl = fxApplicationComponent.fxmlLoader().load("/fxml/main.fxml");
 			mainCtrl.initStage(primaryStage);
 			primaryStage.show();
@@ -66,8 +62,6 @@ public class Cryptomator {
 
 		@Override
 		public void stop() {
-			assert primaryStage != null;
-			primaryStage.hide();
 			LOG.info("JavaFX application stopped.");
 		}
 

main/launcher/src/main/java/org/cryptomator/launcher/CryptomatorComponent.java

@@ -3,6 +3,7 @@ package org.cryptomator.launcher;
 import dagger.Component;
 import org.cryptomator.common.CommonsModule;
 import org.cryptomator.common.Environment;
+import org.cryptomator.logging.DebugMode;
 
 import javax.inject.Named;
 import javax.inject.Singleton;
@@ -12,6 +13,8 @@ import java.util.Optional;
 @Component(modules = {CryptomatorModule.class, CommonsModule.class})
 public interface CryptomatorComponent {
 
+	DebugMode debugMode();
+
 	IpcFactory ipcFactory();
 
 	@Named("applicationVersion")

main/launcher/src/main/java/org/cryptomator/launcher/CryptomatorModule.java

@@ -2,6 +2,8 @@ package org.cryptomator.launcher;
 
 import dagger.Module;
 import dagger.Provides;
+import org.cryptomator.common.settings.Settings;
+import org.cryptomator.common.settings.SettingsProvider;
 
 import javax.inject.Named;
 import javax.inject.Singleton;
@@ -13,6 +15,12 @@ import java.util.concurrent.BlockingQueue;
 @Module
 class CryptomatorModule {
 
+	@Provides
+	@Singleton
+	Settings provideSettings(SettingsProvider settingsProvider) {
+		return settingsProvider.get();
+	}
+
 	@Provides
 	@Singleton
 	@Named("fileOpenRequests")

main/launcher/src/main/java/org/cryptomator/launcher/FxApplicationComponent.java

@@ -21,8 +21,6 @@ interface FxApplicationComponent {
 
 	ViewControllerLoader fxmlLoader();
 
-	DebugMode debugMode();
-
 	@Subcomponent.Builder
 	interface Builder {
 

main/launcher/src/main/java/org/cryptomator/logging/DebugMode.java

@@ -14,11 +14,12 @@ import org.slf4j.ILoggerFactory;
 import org.slf4j.LoggerFactory;
 
 import javax.inject.Inject;
+import javax.inject.Singleton;
 import java.util.Collection;
 
 import static java.util.Arrays.asList;
 
-@FxApplicationScoped
+@Singleton
 public class DebugMode {
 
 	private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(DebugMode.class);

main/ui/src/main/java/org/cryptomator/ui/UiModule.java

@@ -34,12 +34,6 @@ public class UiModule {
 
 	private static final int NUM_SCHEDULER_THREADS = 4;
 
-	@Provides
-	@FxApplicationScoped
-	Settings provideSettings(SettingsProvider settingsProvider) {
-		return settingsProvider.get();
-	}
-
 	@Provides
 	@FxApplicationScoped
 	ScheduledExecutorService provideScheduledExecutorService(@Named("shutdownTaskScheduler") Consumer<Runnable> shutdownTaskScheduler) {