Fix initial crash on app init() if there are missing files

src/sporemodder/HashManager.java

@@ -25,6 +25,7 @@
 import java.util.Locale;
 import java.util.Properties;
 
+import javafx.scene.control.Alert;
 import sporemodder.file.cnv.CnvUnit;
 import sporemodder.util.NameRegistry;
 
@@ -73,6 +74,8 @@ public static HashManager get() {
 	private NameRegistry extraRegistry;
 
 	private final HashMap<String, NameRegistry> registries = new HashMap<String, NameRegistry>();
+
+	private String registryError;
 
 	@Override
 	public void initialize(Properties properties) {
@@ -81,23 +84,28 @@ public void initialize(Properties properties) {
 		decimalFormat = "#.#######";
 		defaultDecimalFormat = new DecimalFormat(decimalFormat, decimalSymbols);
 		defaultDecimalFormat.setNegativePrefix("-");
-		
-		UIManager.get().tryAction(() -> {
+
+		try {
 			fileRegistry.read(PathManager.get().getProgramFile(fileRegistry.getFileName()));
-		}, "The file name registry (reg_file.txt) is corrupt or missing.");
-
-		UIManager.get().tryAction(() -> {
+		} catch (Exception e) {
+			registryError = "The file name registry (reg_file.txt) is corrupt or missing.";
+		}
+		try {
 			typeRegistry.read(PathManager.get().getProgramFile(typeRegistry.getFileName()));
-		}, "The types registry (reg_type.txt) is corrupt or missing.");
-
-		UIManager.get().tryAction(() -> {
+		} catch (Exception e) {
+			registryError = "The types registry (reg_type.txt) is corrupt or missing.";
+		}
+		try {
 			propRegistry.read(PathManager.get().getProgramFile(propRegistry.getFileName()));
-		}, "The property registry (reg_property.txt) is corrupt or missing.");
-
-		UIManager.get().tryAction(() -> {
+		} catch (Exception e) {
+			registryError = "The property registry (reg_property.txt) is corrupt or missing.";
+		}
+		try {
 			simulatorRegistry.read(PathManager.get().getProgramFile(simulatorRegistry.getFileName()));
 			simulatorRegistry.read(PathManager.get().getProgramFile("reg_simulator_stub.txt"));
-		}, "The simulator attributes registry (reg_simulator.txt) is corrupt or missing.");
+		} catch (Exception e) {
+			registryError = "The simulator attributes registry (reg_simulator.txt or reg_simulator_stub.txt) is corrupt or missing.";
+		}
 
 		CnvUnit.loadNameRegistry();
 
@@ -107,6 +115,12 @@ public void initialize(Properties properties) {
 		registries.put(simulatorRegistry.getFileName(), simulatorRegistry);
 		registries.put(projectRegistry.getFileName(), projectRegistry);
 	}
+
+	public void showInitializationError() {
+		if (registryError != null) {
+			UIManager.get().showDialog(Alert.AlertType.ERROR, registryError);
+		}
+	}
 
 	public void replaceRegistries(NameRegistry file, NameRegistry prop, NameRegistry type) {
 		fileRegistry = file == null ? originalFileRegistry : file;

src/sporemodder/MainApp.java

@@ -267,6 +267,8 @@ public void start(Stage primaryStage) {
 			Platform.exit();
 			return;
 		}
+
+		hashManager.showInitializationError();
 
 		if (uiManager.isFirstTime()) {
 			gameManager.showFirstTimeDialog();

src/sporemodder/util/ModBundlesList.java

@@ -45,6 +45,9 @@ public Collection<ModBundle> getAll() {
     }
 
     public void loadList() {
+        if (!Files.exists(getFile())) {
+            return;
+        }
         try {
             Files.readAllLines(getFile()).forEach(line -> {
                 ModBundle modBundle = null;
@@ -65,7 +68,7 @@ public void loadList() {
                     modBundles.put(modBundle.getName().toLowerCase(), modBundle);
                 }
             });
-        } catch (IOException e) {
+        } catch (Exception e) {
             System.err.println("Failed to read mod bundles list: " + e.getMessage());
         }
     }

src/sporemodder/util/ProjectsList.java

@@ -134,6 +134,9 @@ public void saveLastActiveTimesNoException() {
     }
 
     public void loadLastActiveTimes() {
+        if (!Files.exists(getTimesListFile())) {
+            return;
+        }
         try {
             Files.readAllLines(getTimesListFile()).forEach(line -> {
                 String[] splits = line.split(" ", 2);