removed blank line, unused instance variable, import and Logger

refactored DateTimeFormatter into an instance variable

src/main/java/org/cryptomator/common/settings/Settings.java

@@ -168,7 +168,6 @@ public class Settings {
 				}
 			});
 		}
-
 	}
 
 	SettingsJson serialized() {

src/main/java/org/cryptomator/ui/fxapp/UpdateChecker.java

@@ -19,11 +19,7 @@ import javafx.concurrent.Worker;
 import javafx.concurrent.WorkerStateEvent;
 import javafx.util.Duration;
 import java.time.Instant;
-import java.time.LocalDateTime;
-import java.time.ZoneId;
 import java.util.Comparator;
-import java.util.Date;
-import java.util.ResourceBundle;
 
 @FxApplicationScoped
 public class UpdateChecker {
@@ -37,7 +33,6 @@ public class UpdateChecker {
 	private final ScheduledService<String> updateCheckerService;
 	private final ObjectProperty<UpdateCheckState> state = new SimpleObjectProperty<>(UpdateCheckState.NOT_CHECKED);
 	private final ObjectProperty<Instant> lastSuccessfulUpdateCheck = new SimpleObjectProperty<>();
-	private final StringProperty timeDifferenceMessage = new SimpleStringProperty();
 	private final Comparator<String> versionComparator = new SemVerComparator();
 	private final BooleanBinding updateAvailable;
 

src/main/java/org/cryptomator/ui/preferences/UpdatesPreferencesController.java

@@ -49,6 +49,7 @@ public class UpdatesPreferencesController implements FxController {
 	private final BooleanBinding updateAvailable;
 	private final BooleanProperty upToDateLabelVisible = new SimpleBooleanProperty(false);
 	private final ObjectProperty<UpdateChecker.UpdateCheckState> updateCheckState;
+	private final DateTimeFormatter formatter;
 
 	/* FXML */
 	public CheckBox checkForUpdatesCheckbox;
@@ -69,6 +70,7 @@ public class UpdatesPreferencesController implements FxController {
 		this.currentVersion = updateChecker.getCurrentVersion();
 		this.updateAvailable = updateChecker.updateAvailableProperty();
 		this.updateCheckState = updateChecker.updateCheckStateProperty();
+		this.formatter = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM).withLocale(Locale.getDefault());
 	}
 
 	public void initialize() {
@@ -130,7 +132,6 @@ public class UpdatesPreferencesController implements FxController {
 	public String getLastSuccessfulUpdateCheck() {
 		Instant lastCheck = lastSuccessfulUpdateCheck.getValue();
 		if (lastCheck != null && !lastCheck.equals(Settings.DEFAULT_LAST_SUCCESSFUL_UPDATE_CHECK)) {
-			DateTimeFormatter formatter = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM).withLocale(Locale.getDefault());
 			return formatter.format(LocalDateTime.ofInstant(lastCheck, ZoneId.systemDefault()));
 		} else {
 			return "-";

src/main/java/org/cryptomator/ui/updatereminder/UpdateReminderComponent.java

@@ -5,21 +5,16 @@ import dagger.Subcomponent;
 import org.cryptomator.common.settings.Settings;
 import org.cryptomator.ui.common.FxmlFile;
 import org.cryptomator.ui.common.FxmlScene;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 import javafx.scene.Scene;
 import javafx.stage.Stage;
 import java.time.Duration;
 import java.time.Instant;
-import java.util.Date;
 
 @UpdateReminderScoped
 @Subcomponent(modules = {UpdateReminderModule.class})
 public interface UpdateReminderComponent {
 
-	Logger LOG = LoggerFactory.getLogger(UpdateReminderComponent.class);
-
 	@UpdateReminderWindow
 	Stage window();