light kotlin + java cleanup

Author: bitmold

packages/mobile/android/app/src/main/java/com/quietmobile/Backend/BackendWorker.kt

@@ -93,7 +93,7 @@ class BackendWorker(private val context: Context, workerParams: WorkerParameters
                                 "Received unhandled event: $event with payload: $payloadStr"
                         )
                     }
-                } catch (e: JSONException) {
+                } catch (_: JSONException) {
                     Log.d(
                             "BackendWorker",
                             "handleNodeMessages: JSONException while parsing message from backend"

packages/mobile/android/app/src/main/java/com/quietmobile/Communication/CommunicationModulePackage.java

@@ -1,28 +1,25 @@
 package com.quietmobile.Communication;
 
-import java.util.Arrays;
+import androidx.annotation.NonNull;
+
 import java.util.Collections;
 import java.util.List;
 
 import com.facebook.react.ReactPackage;
 import com.facebook.react.bridge.NativeModule;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.uimanager.ViewManager;
-import com.facebook.react.bridge.JavaScriptModule;
 
 public class CommunicationModulePackage implements ReactPackage {
+    @NonNull
     @Override
-    public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
-        return Arrays.<NativeModule>asList(new CommunicationModule(reactContext));
-    }
-
-    // Deprecated from RN 0.47
-    public List<Class<? extends JavaScriptModule>> createJSModules() {
-        return Collections.emptyList();
+    public List<NativeModule> createNativeModules(@NonNull ReactApplicationContext reactContext) {
+        return List.of(new CommunicationModule(reactContext));
     }
 
+    @NonNull
     @Override
-    public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
+    public List<ViewManager> createViewManagers(@NonNull ReactApplicationContext reactContext) {
         return Collections.emptyList();
     }
 }

packages/mobile/android/app/src/main/java/com/quietmobile/MainActivity.kt

@@ -56,7 +56,9 @@ class MainActivity : ReactActivity() {
         return super.onCreateView(name, context, attrs)
     }
 
-    private val NOTIFICATION_PERMISSION_REQUEST_CODE = 200
+    companion object {
+        private const val NOTIFICATION_PERMISSION_REQUEST_CODE = 200
+    }
 
     @RequiresApi(Build.VERSION_CODES.TIRAMISU)
     private fun checkNotificationsPermission() {

packages/mobile/android/app/src/main/java/com/quietmobile/Utils/Utils.kt

@@ -62,7 +62,7 @@ object Utils {
         return _port
     }
 
-    private fun isPortOpen(ip: String?, port: Int, timeout: Int): Boolean {
+    private fun isPortOpen(ip: String, port: Int, timeout: Int): Boolean {
         return try {
             val socket = Socket()
             socket.connect(InetSocketAddress(ip, port), timeout)