clean up code

Author: infeo

src/main/java/org/cryptomator/linux/keychain/KDEWalletKeychainAccess.java

@@ -95,11 +95,7 @@ private static DBusConnection getNewConnection() throws DBusException {
 			} catch (DBusConnectionException | DBusExecutionException de) {
 				LOG.warn("Connecting to SESSION bus failed.", de);
 				LOG.warn("Falling back to SYSTEM DBus");
-				try {
-					return DBusConnectionBuilder.forSystemBus().build();
-				} catch (DBusException e) {
-					throw e;
-				}
+				return DBusConnectionBuilder.forSystemBus().build();
 			}
 		}
 
@@ -144,7 +140,7 @@ public char[] loadPassphrase(String key) throws KeychainAccessException {
 				} else {
 					LOG.debug("loadPassphrase: wallet is closed.");
 				}
-				return (password.equals("")) ? null : password.toCharArray();
+				return (password.isEmpty()) ? null : password.toCharArray();
 			} catch (RuntimeException e) {
 				throw new KeychainAccessException("Loading the passphrase failed.", e);
 			}

src/main/java/org/cryptomator/linux/tray/AppindicatorTrayMenuController.java

@@ -31,7 +31,6 @@ public class AppindicatorTrayMenuController implements TrayMenuController {
 	private static final Arena ARENA = Arena.global();
 	private MemorySegment indicator;
 	private MemorySegment menu = gtk_menu_new();
-	private Optional<String> svgSourcePath;
 
 	@CheckAvailability
 	public static boolean isAvailable() {
@@ -48,9 +47,9 @@ public void showTrayIcon(Consumer<TrayIconLoader> iconLoader, Runnable runnable,
 
 	private void showTrayIconWithSVG(String s) {
 		try (var arena = Arena.ofConfined()) {
-			svgSourcePath = Optional.ofNullable(System.getProperty(SVG_SOURCE_PROPERTY));
+			var svgSourcePath = System.getProperty(SVG_SOURCE_PROPERTY);
 			// flatpak
-			if (svgSourcePath.isEmpty()) {
+			if (svgSourcePath != null) {
 				indicator = app_indicator_new(arena.allocateUtf8String(APP_INDICATOR_ID),
 						arena.allocateUtf8String(s),
 						APP_INDICATOR_CATEGORY_APPLICATION_STATUS());
@@ -60,7 +59,7 @@ private void showTrayIconWithSVG(String s) {
 						arena.allocateUtf8String(s),
 						APP_INDICATOR_CATEGORY_APPLICATION_STATUS(),
 						// find tray icons theme in mounted AppImage / installed on system by ppa
-						arena.allocateUtf8String(svgSourcePath.get()));
+						arena.allocateUtf8String(svgSourcePath));
 			}
 		}
 	}
@@ -105,7 +104,7 @@ private void addChildren(MemorySegment menu, List<TrayMenuItem> items) {
 					}
 					gtk_menu_shell_append(menu, gtkMenuItem);
 				}
-				case SeparatorItem separatorItem -> {
+				case SeparatorItem _ -> {
 					var gtkSeparator = gtk_menu_item_new();
 					gtk_menu_shell_append(menu, gtkSeparator);
 				}