release ready

@@ -262,7 +262,7 @@ class GetConnect extends GetConnectInterface {
   }) {
     _checkIfDisposed(isHttp: false);
 
-    final _socket = GetSocket(_concatUrl(url), ping: ping);
+    final _socket = GetSocket(_concatUrl(url)!, ping: ping);
     sockets.add(_socket);
     return _socket;
   }

 import 'dart:async';
 import 'dart:convert';
-import 'package:flutter/foundation.dart';
 
 import '../src/certificates/certificates.dart';
 import '../src/exceptions/exceptions.dart';

@@ -38,6 +38,7 @@ class HttpRequestImpl implements HttpRequestBase {
       ..responseType = 'blob'
       ..withCredentials = withCredentials;
     request.headers.forEach(xhr.setRequestHeader);
+    request.contentLength ?? -1;
 
     var completer = Completer<Response<T>>();
     xhr.onLoad.first.then((_) {

@@ -32,7 +32,7 @@ class HttpRequestImpl extends HttpRequestBase {
 
   @override
   Future<Response<T>> send<T>(Request<T> request) async {
-    Stream<List<int>?> stream = request.bodyBytes.asBroadcastStream();
+    var stream = request.bodyBytes.asBroadcastStream();
     //var stream = BodyBytesStream.fromBytes(requestBody ?? const []);
 
     try {

@@ -16,7 +16,7 @@ class MockClient extends HttpRequestBase {
   @override
   Future<Response<T>> send<T>(Request<T> request) async {
     var requestBody = await request.bodyBytes.toBytes();
-    var bodyBytes = BodyBytesStream.fromBytes(requestBody ?? const []);
+    var bodyBytes = BodyBytesStream.fromBytes(requestBody);
 
     var response = await _handler(request);
 

@@ -57,9 +57,7 @@ class FormData {
   String _fileHeader(MapEntry<String, MultipartFile> file) {
     var header =
         'content-disposition: form-data; name="${browserEncode(file.key)}"';
-    if (file.value.filename != null) {
     header = '$header; filename="${browserEncode(file.value.filename)}"';
-    }
     header = '$header\r\n'
         'content-type: ${file.value.contentType}';
     return '$header\r\n\r\n';

-import 'package:flutter/foundation.dart';
-
 import '../http/stub/file_decoder_stub.dart'
     if (dart.library.html) '../http/html/file_decoder_html.dart'
     if (dart.library.io) '../http/io/file_decoder_io.dart';

@@ -3,7 +3,7 @@ import 'src/sockets_stub.dart'
     if (dart.library.io) 'src/sockets_io.dart';
 
 class GetSocket extends BaseWebSocket {
-  GetSocket(String? url,
+  GetSocket(String url,
       {Duration ping = const Duration(seconds: 5), bool allowSelfSigned = true})
       : super(url, ping: ping, allowSelfSigned: allowSelfSigned);
 }

@@ -54,7 +54,8 @@ class BaseWebSocket {
       return;
     } on SocketException catch (e) {
       connectionStatus = ConnectionStatus.closed;
-      socketNotifier!.notifyError(Close(e.osError!.message, e.osError!.errorCode));
+      socketNotifier!
+          .notifyError(Close(e.osError!.message, e.osError!.errorCode));
       return;
     }
   }

 import './socket_notifier.dart';
 
 class BaseWebSocket {
-  String? url;
+  String url;
   Duration ping;
   bool allowSelfSigned;
   BaseWebSocket(

@@ -109,7 +109,8 @@ extension Inst on GetInterface {
 
   /// Checks if a Class Instance<[S]> (or [tag]) is registered in memory.
   /// - [tag] optional, if you use a [tag] to register the Instance.
-  bool isRegistered<S>({String? tag}) => GetInstance().isRegistered<S>(tag: tag);
+  bool isRegistered<S>({String? tag}) =>
+      GetInstance().isRegistered<S>(tag: tag);
 
   /// Checks if an Instance<[S]> (or [tag]) returned from a factory builder
   /// [Get.lazyPut()], is registered in memory.

 import 'dart:async';
 import 'dart:collection';
 
-import 'package:flutter/foundation.dart';
-
 import '../../get_core/get_core.dart';
 
 import 'lifecycle.dart';
@@ -177,7 +175,6 @@ class GetInstance {
     required InstanceBuilderCallback<S> builder,
     bool fenix = false,
   }) {
-    assert(builder != null);
     final key = _getKey(S, name);
     _singl.putIfAbsent(
       key,
@@ -209,10 +206,8 @@ class GetInstance {
       for (final onClose in _routesByCreate[routeName]!) {
         // assure the [DisposableInterface] instance holding a reference
         // to [onClose()] wasn't disposed.
-        if (onClose != null) {
         onClose();
       }
-      }
       _routesByCreate[routeName]!.clear();
       _routesByCreate.remove(routeName);
     }
@@ -222,7 +217,7 @@ class GetInstance {
     }
 
     for (final element in keysToRemove) {
-      _routesKey?.remove(element);
+      _routesKey.remove(element);
     }
     keysToRemove.clear();
   }
@@ -286,15 +281,13 @@ class GetInstance {
     final key = _getKey(S, tag);
     final i = _singl[key]!.getDependency() as S?;
     if (i is GetLifeCycleBase) {
-      if (i.onStart != null) {
       i.onStart();
       if (tag == null) {
         Get.log('Instance "$S" has been initialized');
       } else {
         Get.log('Instance "$S" with tag "$tag" has been initialized');
       }
-      }
-      if (!_singl[key]!.isSingleton! && i.onDelete != null) {
+      if (!_singl[key]!.isSingleton!) {
         _routesByCreate[Get.reference] ??= HashSet<Function>();
         _routesByCreate[Get.reference]!.add(i.onDelete as Function);
       }
@@ -398,7 +391,7 @@ class GetInstance {
       return false;
     }
 
-    if (i is GetLifeCycleBase && i.onDelete != null) {
+    if (i is GetLifeCycleBase) {
       i.onDelete();
       Get.log('"$newKey" onDelete() called');
     }

@@ -18,10 +18,7 @@ class GetModalBottomSheetRoute<T> extends PopupRoute<T> {
     RouteSettings? settings,
     this.enterBottomSheetDuration = const Duration(milliseconds: 250),
     this.exitBottomSheetDuration = const Duration(milliseconds: 200),
-  })  : assert(isScrollControlled != null),
-        name = "BOTTOMSHEET: ${builder.hashCode}",
-        assert(isDismissible != null),
-        assert(enableDrag != null),
+  })  : name = "BOTTOMSHEET: ${builder.hashCode}",
         super(settings: settings);
   final bool? isPersistent;
   final WidgetBuilder? builder;
@@ -80,10 +77,10 @@ class GetModalBottomSheetRoute<T> extends PopupRoute<T> {
         child: _GetModalBottomSheet<T>(
           route: this,
           backgroundColor: backgroundColor ??
-              sheetTheme?.modalBackgroundColor ??
-              sheetTheme?.backgroundColor,
+              sheetTheme.modalBackgroundColor ??
+              sheetTheme.backgroundColor,
           elevation:
-              elevation ?? sheetTheme?.modalElevation ?? sheetTheme?.elevation,
+              elevation ?? sheetTheme.modalElevation ?? sheetTheme.elevation,
           shape: shape,
           clipBehavior: clipBehavior,
           isScrollControlled: isScrollControlled,
@@ -107,9 +104,7 @@ class _GetModalBottomSheet<T> extends StatefulWidget {
     this.isScrollControlled = false,
     this.enableDrag = true,
     this.isPersistent = false,
-  })  : assert(isScrollControlled != null),
-        assert(enableDrag != null),
-        super(key: key);
+  }) : super(key: key);
   final bool isPersistent;
   final GetModalBottomSheetRoute<T>? route;
   final bool isScrollControlled;
@@ -208,9 +203,7 @@ class _GetPerModalBottomSheet<T> extends StatefulWidget {
     this.clipBehavior,
     this.isScrollControlled = false,
     this.enableDrag = true,
-  })  : assert(isScrollControlled != null),
-        assert(enableDrag != null),
-        super(key: key);
+  }) : super(key: key);
   final bool? isPersistent;
   final GetModalBottomSheetRoute<T>? route;
   final bool isScrollControlled;

@@ -11,8 +11,7 @@ class GetDialogRoute<T> extends PopupRoute<T> {
     Duration transitionDuration = const Duration(milliseconds: 200),
     RouteTransitionsBuilder? transitionBuilder,
     RouteSettings? settings,
-  })  : assert(barrierDismissible != null),
-        widget = pageBuilder,
+  })  : widget = pageBuilder,
         name = "DIALOG: ${pageBuilder.hashCode}",
         _barrierDismissible = barrierDismissible,
         _barrierLabel = barrierLabel,

@@ -145,9 +145,7 @@ extension ExtensionSnackbar on GetInterface {
   }) async {
     final getBar = GetBar(
         snackbarStatus: snackbarStatus,
-        titleText: (title == null)
-            ? null
-            : titleText ??
+        titleText: titleText ??
             Text(
               title,
               style: TextStyle(
@@ -224,10 +222,6 @@ extension ExtensionDialog on GetInterface {
     String? name,
     RouteSettings? routeSettings,
   }) {
-    assert(widget != null);
-    assert(barrierDismissible != null);
-    assert(useSafeArea != null);
-    assert(useRootNavigator != null);
     assert(debugCheckHasMaterialLocalizations(context!));
 
     //  final theme = Theme.of(context, shadowThemeOnly: true);
@@ -236,9 +230,7 @@ extension ExtensionDialog on GetInterface {
       pageBuilder: (buildContext, animation, secondaryAnimation) {
         final pageChild = widget;
         Widget dialog = Builder(builder: (context) {
-          return theme != null
-              ? Theme(data: theme, child: pageChild)
-              : pageChild;
+          return Theme(data: theme, child: pageChild);
         });
         if (useSafeArea) {
           dialog = SafeArea(child: dialog);
@@ -275,8 +267,6 @@ extension ExtensionDialog on GetInterface {
     bool useRootNavigator = true,
     RouteSettings? routeSettings,
   }) {
-    assert(pageBuilder != null);
-    assert(useRootNavigator != null);
     assert(!barrierDismissible || barrierLabel != null);
     return Navigator.of(overlayContext!, rootNavigator: useRootNavigator)
         .push<T>(GetDialogRoute<T>(
@@ -383,7 +373,7 @@ extension ExtensionDialog on GetInterface {
         mainAxisSize: MainAxisSize.min,
         children: [
           content ??
-              Text(middleText ?? "",
+              Text(middleText,
                   textAlign: TextAlign.center, style: middleTextStyle),
           SizedBox(height: 16),
           ButtonTheme(
@@ -437,13 +427,6 @@ extension ExtensionBottomSheet on GetInterface {
     Duration? enterBottomSheetDuration,
     Duration? exitBottomSheetDuration,
   }) {
-    assert(bottomsheet != null);
-    assert(persistent != null);
-    assert(isScrollControlled != null);
-    assert(useRootNavigator != null);
-    assert(isDismissible != null);
-    assert(enableDrag != null);
-
     return Navigator.of(overlayContext!, rootNavigator: useRootNavigator)
         .push(GetModalBottomSheetRoute<T>(
       builder: (_) => bottomsheet,
@@ -822,7 +805,7 @@ you can only use widgets and widget functions here''';
   /// [id] is for when you are using nested navigation,
   /// as explained in documentation
   void close(int times, [int? id]) {
-    if ((times == null) || (times < 1)) {
+    if (times < 1) {
       times = 1;
     }
     var count = 0;
@@ -874,7 +857,7 @@ you can only use widgets and widget functions here''';
       return null;
     }
     return global(id)?.currentState?.pushReplacement(GetPageRoute(
-        opaque: opaque ?? true,
+        opaque: opaque,
         page: _resolve(page, 'off'),
         binding: binding,
         settings: RouteSettings(arguments: arguments),
@@ -934,7 +917,7 @@ you can only use widgets and widget functions here''';
 
     return global(id)?.currentState?.pushAndRemoveUntil<T>(
         GetPageRoute<T>(
-          opaque: opaque ?? true,
+          opaque: opaque,
           popGesture: popGesture ?? defaultPopGesture,
           page: _resolve(page, 'offAll'),
           binding: binding,
@@ -950,19 +933,15 @@ you can only use widgets and widget functions here''';
 
   void addPages(List<GetPage>? getPages) {
     if (getPages != null) {
-      if (routeTree == null) {
       routeTree = ParseRouteTree();
-      }
 
-      routeTree!.addRoutes(getPages);
+      routeTree.addRoutes(getPages);
     }
   }
 
   void addPage(GetPage getPage) {
-    if (getPage != null) {
-      if (routeTree == null) routeTree = ParseRouteTree();
-      routeTree!.addRoute(getPage);
-    }
+    routeTree = ParseRouteTree();
+    routeTree.addRoute(getPage);
   }
 
   /// change default config of Get
@@ -1100,7 +1079,7 @@ Since version 2.8 it is possible to access the properties
   /// give access to current Overlay Context
   BuildContext? get overlayContext {
     BuildContext? overlay;
-    key?.currentState?.overlay?.context?.visitChildElements((element) {
+    key?.currentState?.overlay?.context.visitChildElements((element) {
       overlay = element;
     });
     return overlay;
@@ -1166,7 +1145,7 @@ Since version 2.8 it is possible to access the properties
       (ui.window.platformBrightness == Brightness.dark);
 
   /// give access to Theme.of(context).iconTheme.color
-  Color? get iconColor => theme?.iconTheme?.color;
+  Color? get iconColor => theme?.iconTheme.color;
 
   /// give access to FocusScope.of(context)
   FocusNode? get focusScope => FocusManager.instance.primaryFocus;
@@ -1204,8 +1183,8 @@ Since version 2.8 it is possible to access the properties
 
   Routing get routing => getxController.routing;
 
-  Map<String?, String> get parameters => getxController.parameters;
-  set parameters(Map<String?, String> newParameters) =>
+  Map<String, String?> get parameters => getxController.parameters;
+  set parameters(Map<String, String?> newParameters) =>
       getxController.parameters = newParameters;
 
   ParseRouteTree get routeTree => getxController.routeTree;

@@ -31,11 +31,7 @@ class GetPageRoute<T> extends PageRoute<T> {
     this.maintainState = true,
     bool fullscreenDialog = false,
     this.middlewares,
-  })  : assert(opaque != null),
-        assert(barrierDismissible != null),
-        assert(maintainState != null),
-        assert(fullscreenDialog != null),
-        reference = "$routeName: ${page.hashCode}",
+  })  : reference = "$routeName: ${page.hashCode}",
         super(settings: settings, fullscreenDialog: fullscreenDialog);
 
   @override
@@ -416,10 +412,7 @@ class _CupertinoBackGestureDetector<T> extends StatefulWidget {
     required this.enabledCallback,
     required this.onStartPopGesture,
     required this.child,
-  })   : assert(enabledCallback != null),
-        assert(onStartPopGesture != null),
-        assert(child != null),
-        super(key: key);
+  }) : super(key: key);
 
   final Widget child;
 
@@ -533,8 +526,7 @@ class _CupertinoBackGestureController<T> {
   _CupertinoBackGestureController({
     required this.navigator,
     required this.controller,
-  })   : assert(navigator != null),
-        assert(controller != null) {
+  }) {
     navigator.didStartUserGesture();
   }
 

@@ -51,11 +51,7 @@ class GetPage {
     this.fullscreenDialog = false,
     this.children,
     this.middlewares,
-  })  : path = _nameToRegex(name),
-        assert(page != null),
-        assert(name != null),
-        assert(maintainState != null),
-        assert(fullscreenDialog != null);
+  }) : path = _nameToRegex(name);
 
   static PathDecoded _nameToRegex(String path) {
     var keys = <String?>[];

@@ -36,7 +36,7 @@ class Routing {
 /// Extracts the name of a route based on it's instance type
 /// or null if not possible.
 String? _extractRouteName(Route? route) {
-  if (route?.settings?.name != null) {
+  if (route?.settings.name != null) {
     return route!.settings.name;
   }
 
@@ -110,7 +110,7 @@ class GetObserver extends NavigatorObserver {
         value.current = newRoute.name ?? '';
       }
 
-      value.args = route?.settings?.arguments;
+      value.args = route.settings.arguments;
       value.route = route;
       value.isBack = false;
       value.removed = '';
@@ -151,7 +151,7 @@ class GetObserver extends NavigatorObserver {
         value.current = _extractRouteName(previousRoute) ?? '';
       }
 
-      value.args = route?.settings?.arguments;
+      value.args = route.settings.arguments;
       value.route = previousRoute;
       value.isBack = true;
       value.removed = '';
@@ -183,7 +183,7 @@ class GetObserver extends NavigatorObserver {
         value.current = newName ?? '';
       }
 
-      value.args = newRoute?.settings?.arguments;
+      value.args = newRoute?.settings.arguments;
       value.route = newRoute;
       value.isBack = false;
       value.removed = '';

@@ -113,7 +113,7 @@ class MiddlewareRunner {
   }
 
   GetPage? runOnPageCalled(GetPage? page) {
-    _getMiddlewares()!.forEach((element) {
+    _getMiddlewares()?.forEach((element) {
       page = element.onPageCalled(page);
     });
     return page;
@@ -121,7 +121,7 @@ class MiddlewareRunner {
 
   RouteSettings? runRedirect(String? route) {
     RouteSettings? to;
-    _getMiddlewares()!.forEach((element) {
+    _getMiddlewares()?.forEach((element) {
       to = element.redirect(route);
     });
     if (to != null) {
@@ -131,28 +131,28 @@ class MiddlewareRunner {
   }
 
   List<Bindings>? runOnBindingsStart(List<Bindings>? bindings) {
-    _getMiddlewares()!.forEach((element) {
+    _getMiddlewares()?.forEach((element) {
       bindings = element.onBindingsStart(bindings);
     });
     return bindings;
   }
 
   GetPageBuilder? runOnPageBuildStart(GetPageBuilder? page) {
-    _getMiddlewares()!.forEach((element) {
+    _getMiddlewares()?.forEach((element) {
       page = element.onPageBuildStart(page);
     });
     return page;
   }
 
   Widget runOnPageBuilt(Widget page) {
-    _getMiddlewares()!.forEach((element) {
+    _getMiddlewares()?.forEach((element) {
       page = element.onPageBuilt(page);
     });
     return page;
   }
 
   void runOnPageDispose() =>
-      _getMiddlewares()!.forEach((element) => element.onPageDispose());
+      _getMiddlewares()?.forEach((element) => element.onPageDispose());
 }
 
 class PageRedirect {
@@ -205,11 +205,11 @@ class PageRedirect {
 
   /// check if redirect is needed
   bool needRecheck() {
-    final match = Get.routeTree!.matchRoute(settings.name!);
-    Get.parameters = match?.parameters;
+    final match = Get.routeTree.matchRoute(settings.name!);
+    Get.parameters = match.parameters;
 
     // No Match found
-    if (match?.route == null) {
+    if (match.route == null) {
       isUnknown = true;
       return false;
     }
@@ -233,12 +233,8 @@ class PageRedirect {
   void addPageParameter(GetPage route) {
     if (route.parameter == null) return;
 
-    if (Get.parameters == null) {
-      Get.parameters = route.parameter!;
-    } else {
     final parameters = Get.parameters;
     parameters.addEntries(route.parameter!.entries);
     Get.parameters = parameters;
   }
-  }
 }

@@ -603,8 +603,7 @@ Set either a message or messageText""");
         Padding(
           padding: EdgeInsets.only(right: buttonRightPadding),
           child: _getMainActionButton(),
-            ) ??
-            _emptyWidget,
+        ),
       ];
     }
   }

@@ -176,8 +176,7 @@ class SnackRoute<T> extends OverlayRoute<T> {
   AnimationController createAnimationController() {
     assert(!_transitionCompleter.isCompleted,
         'Cannot reuse a $runtimeType after disposing it.');
-    assert(snack.animationDuration != null &&
-        snack.animationDuration >= Duration.zero);
+    assert(snack.animationDuration >= Duration.zero);
     return AnimationController(
       duration: snack.animationDuration,
       debugLabel: debugLabel,

@@ -14,59 +14,61 @@ class MiniSubscription<T> {
   final Callback? onDone;
   final bool cancelOnError;
 
-  Future<void> cancel() async => listener!.removeListener(this);
+  Future<void> cancel() async => listener.removeListener(this);
 
-  final FastList<T>? listener;
+  final FastList<T> listener;
 }
 
 class MiniStream<T> {
-  FastList<T?>? listenable = FastList<T>();
+  FastList<T> listenable = FastList<T>();
 
-  T? _value;
+  late T _value;
 
-  T? get value => _value;
+  T get value => _value;
 
-  set value(T? val) {
+  set value(T val) {
     add(val);
   }
 
-  void add(T? event) {
-    assert(listenable != null);
+  void add(T event) {
     _value = event;
-    listenable!._notifyData(event);
+    listenable._notifyData(event);
   }
 
   void addError(Object error, [StackTrace? stackTrace]) {
-    assert(listenable != null);
-    listenable!._notifyError(error, stackTrace);
+    listenable._notifyError(error, stackTrace);
   }
 
-  int get length => listenable!.length;
+  int get length => listenable.length;
 
-  bool get hasListeners => listenable!.isNotEmpty;
+  bool get hasListeners => listenable.isNotEmpty;
 
-  bool get isClosed => listenable == null;
+  bool get isClosed => _isClosed;
 
-  MiniSubscription<T?> listen(void Function(T? event) onData,
-      {Function? onError, void Function()? onDone, bool cancelOnError = false}) {
-    final subs = MiniSubscription<T?>(
+  MiniSubscription<T> listen(void Function(T event) onData,
+      {Function? onError,
+      void Function()? onDone,
+      bool cancelOnError = false}) {
+    final subs = MiniSubscription<T>(
       onData,
       onError,
       onDone,
       cancelOnError,
       listenable,
     );
-    listenable!.addListener(subs);
+    listenable.addListener(subs);
     return subs;
   }
 
+  bool _isClosed = false;
+
   void close() {
-    if (listenable == null) {
+    if (_isClosed) {
       throw 'You can not close a closed Stream';
     }
-    listenable!._notifyDone();
-    listenable = null;
-    _value = null;
+    listenable._notifyDone();
+    listenable.clear();
+    _isClosed = true;
   }
 }
 
@@ -74,18 +76,18 @@ class FastList<T> {
   Node<MiniSubscription<T>>? _head;
 
   void _notifyData(T data) {
-    var currentNode = _head!;
+    var currentNode = _head;
     do {
-      currentNode.data!.data(data);
-      currentNode = currentNode.next!;
+      currentNode?.data?.data(data);
+      currentNode = currentNode?.next;
     } while (currentNode != null);
   }
 
   void _notifyDone() {
-    var currentNode = _head!;
+    var currentNode = _head;
     do {
-      currentNode.data!.onDone?.call();
-      currentNode = currentNode.next!;
+      currentNode?.data?.onDone?.call();
+      currentNode = currentNode?.next;
     } while (currentNode != null);
   }
 
@@ -164,6 +166,13 @@ class FastList<T> {
     }
   }
 
+  void clear() {
+    var length = this.length;
+    for (var i = 0; i < length; i++) {
+      _removeAt(i);
+    }
+  }
+
   MiniSubscription<T>? _removeAt(int position) {
     var index = 0;
     var currentNode = _head;

 library rx_stream;
 
 import 'dart:async';
+
 import '../rx_typedefs/rx_typedefs.dart';
 
 part 'get_stream.dart';

@@ -408,18 +408,18 @@ class RxDouble extends _BaseRxNum<double?> {
   double truncateToDouble() => value!.truncateToDouble();
 }
 
-class RxInt extends _BaseRxNum<int?> {
-  RxInt([int? initial]) : super(initial);
+class RxInt extends _BaseRxNum<int> {
+  RxInt(int initial) : super(initial);
 
   /// Addition operator.
   RxInt operator +(int other) {
-    value = value! + other;
+    value = value + other;
     return this;
   }
 
   /// Subtraction operator.
   RxInt operator -(int other) {
-    value = value! - other;
+    value = value - other;
     return this;
   }
 
@@ -431,7 +431,7 @@ class RxInt extends _BaseRxNum<int?> {
   ///
   /// If both operands are negative, the result is negative, otherwise
   /// the result is non-negative.
-  int operator &(int other) => value! & other;
+  int operator &(int other) => value & other;
 
   /// Bit-wise or operator.
   ///
@@ -441,7 +441,7 @@ class RxInt extends _BaseRxNum<int?> {
   ///
   /// If both operands are non-negative, the result is non-negative,
   /// otherwise the result is negative.
-  int operator |(int other) => value! | other;
+  int operator |(int other) => value | other;
 
   /// Bit-wise exclusive-or operator.
   ///
@@ -451,7 +451,7 @@ class RxInt extends _BaseRxNum<int?> {
   ///
   /// If the operands have the same sign, the result is non-negative,
   /// otherwise the result is negative.
-  int operator ^(int other) => value! ^ other;
+  int operator ^(int other) => value ^ other;
 
   /// The bit-wise negate operator.
   ///
@@ -459,7 +459,7 @@ class RxInt extends _BaseRxNum<int?> {
   /// the result is a number with the opposite bits set.
   ///
   /// This maps any integer `x` to `-x - 1`.
-  int operator ~() => ~value!;
+  int operator ~() => ~value;
 
   /// Shift the bits of this integer to the left by [shiftAmount].
   ///
@@ -471,7 +471,7 @@ class RxInt extends _BaseRxNum<int?> {
   /// mask.
   ///
   /// It is an error if [shiftAmount] is negative.
-  int operator <<(int shiftAmount) => value! << shiftAmount;
+  int operator <<(int shiftAmount) => value << shiftAmount;
 
   /// Shift the bits of this integer to the right by [shiftAmount].
   ///
@@ -480,13 +480,13 @@ class RxInt extends _BaseRxNum<int?> {
   ///`pow(2, shiftIndex)`.
   ///
   /// It is an error if [shiftAmount] is negative.
-  int operator >>(int shiftAmount) => value! >> shiftAmount;
+  int operator >>(int shiftAmount) => value >> shiftAmount;
 
   /// Returns this integer to the power of [exponent] modulo [modulus].
   ///
   /// The [exponent] must be non-negative and [modulus] must be
   /// positive.
-  int modPow(int exponent, int modulus) => value!.modPow(exponent, modulus);
+  int modPow(int exponent, int modulus) => value.modPow(exponent, modulus);
 
   /// Returns the modular multiplicative inverse of this integer
   /// modulo [modulus].
@@ -494,7 +494,7 @@ class RxInt extends _BaseRxNum<int?> {
   /// The [modulus] must be positive.
   ///
   /// It is an error if no modular inverse exists.
-  int modInverse(int modulus) => value!.modInverse(modulus);
+  int modInverse(int modulus) => value.modInverse(modulus);
 
   /// Returns the greatest common divisor of this integer and [other].
   ///
@@ -507,13 +507,13 @@ class RxInt extends _BaseRxNum<int?> {
   /// For any integer `x`, `x.gcd(x)` is `x.abs()`.
   ///
   /// If both `this` and `other` is zero, the result is also zero.
-  int gcd(int other) => value!.gcd(other);
+  int gcd(int other) => value.gcd(other);
 
   /// Returns true if and only if this integer is even.
-  bool get isEven => value!.isEven;
+  bool get isEven => value.isEven;
 
   /// Returns true if and only if this integer is odd.
-  bool get isOdd => value!.isOdd;
+  bool get isOdd => value.isOdd;
 
   /// Returns the minimum number of bits required to store this integer.
   ///
@@ -535,7 +535,7 @@ class RxInt extends _BaseRxNum<int?> {
   /// (-3).bitLength == 2;  // 11111101
   /// (-4).bitLength == 2;  // 11111100
   /// ```
-  int get bitLength => value!.bitLength;
+  int get bitLength => value.bitLength;
 
   /// Returns the least significant [width] bits of this integer as a
   /// non-negative number (i.e. unsigned representation).  The returned value
@@ -557,7 +557,7 @@ class RxInt extends _BaseRxNum<int?> {
   /// ```
   /// x == x.toUnsigned(x.bitLength);
   /// ```
-  int toUnsigned(int width) => value!.toUnsigned(width);
+  int toUnsigned(int width) => value.toUnsigned(width);
 
   /// Returns the least significant [width] bits of this integer, extending the
   /// highest retained bit to the sign.  This is the same as truncating the
@@ -587,57 +587,57 @@ class RxInt extends _BaseRxNum<int?> {
   /// ```
   /// x == x.toSigned(x.bitLength + 1);
   /// ```
-  int toSigned(int width) => value!.toSigned(width);
+  int toSigned(int width) => value.toSigned(width);
 
   /// Return the negative value of this integer.
   ///
   /// The result of negating an integer always has the opposite sign, except
   /// for zero, which is its own negation.
   @override
-  int operator -() => -value!;
+  int operator -() => -value;
 
   /// Returns the absolute value of this integer.
   ///
   /// For any integer `x`, the result is the same as `x < 0 ? -x : x`.
   @override
-  int abs() => value!.abs();
+  int abs() => value.abs();
 
   /// Returns the sign of this integer.
   ///
   /// Returns 0 for zero, -1 for values less than zero and
   /// +1 for values greater than zero.
   @override
-  int get sign => value!.sign;
+  int get sign => value.sign;
 
   /// Returns `this`.
   @override
-  int round() => value!.round();
+  int round() => value.round();
 
   /// Returns `this`.
   @override
-  int floor() => value!.floor();
+  int floor() => value.floor();
 
   /// Returns `this`.
   @override
-  int ceil() => value!.ceil();
+  int ceil() => value.ceil();
 
   /// Returns `this`.
   @override
-  int truncate() => value!.truncate();
+  int truncate() => value.truncate();
 
   /// Returns `this.toDouble()`.
   @override
-  double roundToDouble() => value!.roundToDouble();
+  double roundToDouble() => value.roundToDouble();
 
   /// Returns `this.toDouble()`.
   @override
-  double floorToDouble() => value!.floorToDouble();
+  double floorToDouble() => value.floorToDouble();
 
   /// Returns `this.toDouble()`.
   @override
-  double ceilToDouble() => value!.ceilToDouble();
+  double ceilToDouble() => value.ceilToDouble();
 
   /// Returns `this.toDouble()`.
   @override
-  double truncateToDouble() => value!.truncateToDouble();
+  double truncateToDouble() => value.truncateToDouble();
 }

@@ -5,10 +5,8 @@ class RxList<E> extends ListMixin<E>
     with NotifyManager<List<E>>, RxObjectMixin<List<E>>
     implements RxInterface<List<E>> {
   RxList([List<E> initial = const []]) {
-    if (initial != null) {
     _value = List.from(initial);
   }
-  }
 
   factory RxList.filled(int length, E fill, {bool growable = false}) {
     return RxList(List.filled(length, fill, growable: growable));
@@ -40,11 +38,11 @@ class RxList<E> extends ListMixin<E>
   }
 
   @override
-  Iterator<E> get iterator => value!.iterator;
+  Iterator<E> get iterator => value.iterator;
 
   @override
   void operator []=(int index, E val) {
-    _value![index] = val;
+    _value[index] = val;
     refresh();
   }
 
@@ -59,18 +57,18 @@ class RxList<E> extends ListMixin<E>
 
   @override
   E operator [](int index) {
-    return value![index];
+    return value[index];
   }
 
   @override
   void add(E item) {
-    _value!.add(item);
+    _value.add(item);
     refresh();
   }
 
   @override
   void addAll(Iterable<E> item) {
-    _value!.addAll(item);
+    _value.addAll(item);
     refresh();
   }
 
@@ -103,17 +101,17 @@ class RxList<E> extends ListMixin<E>
 
   @override
   Iterable<E> where(bool Function(E) test) {
-    return value!.where(test);
+    return value.where(test);
   }
 
   @override
   Iterable<T> whereType<T>() {
-    return value!.whereType<T>();
+    return value.whereType<T>();
   }
 
   @override
   void sort([int compare(E a, E b)?]) {
-    _value!.sort(compare);
+    _value.sort(compare);
     refresh();
   }
 }
@@ -126,10 +124,10 @@ extension ListExtension<E> on List<E> {
     if (item != null) add(item);
   }
 
-  /// Add [Iterable<E>] to [List<E>] only if [Iterable<E>] is not null.
-  void addAllNonNull(Iterable<E> item) {
-    if (item != null) addAll(item);
-  }
+  // /// Add [Iterable<E>] to [List<E>] only if [Iterable<E>] is not null.
+  // void addAllNonNull(Iterable<E> item) {
+  //   if (item != null) addAll(item);
+  // }
 
   /// Add [item] to [List<E>] only if [condition] is true.
   void addIf(dynamic condition, E item) {
@@ -146,7 +144,7 @@ extension ListExtension<E> on List<E> {
   /// Replaces all existing items of this list with [item]
   void assign(E item) {
     if (this is RxList) {
-      (this as RxList)._value ??= <E>[];
+      (this as RxList)._value;
     }
 
     clear();
@@ -156,7 +154,7 @@ extension ListExtension<E> on List<E> {
   /// Replaces all existing items of this list with [items]
   void assignAll(Iterable<E> items) {
     if (this is RxList) {
-      (this as RxList)._value ??= <E>[];
+      (this as RxList)._value;
     }
     clear();
     addAll(items);

@@ -4,10 +4,8 @@ class RxMap<K, V> extends MapMixin<K, V>
     with NotifyManager<Map<K, V>>, RxObjectMixin<Map<K, V>>
     implements RxInterface<Map<K, V>> {
   RxMap([Map<K, V> initial = const {}]) {
-    if (initial != null) {
     _value = Map.from(initial);
   }
-  }
 
   factory RxMap.from(Map<K, V> other) {
     return RxMap(Map.from(other));
@@ -30,27 +28,27 @@ class RxMap<K, V> extends MapMixin<K, V>
 
   @override
   V? operator [](Object? key) {
-    return value![key as K];
+    return value[key as K];
   }
 
   @override
   void operator []=(K key, V value) {
-    _value![key] = value;
+    _value[key] = value;
     refresh();
   }
 
   @override
   void clear() {
-    _value!.clear();
+    _value.clear();
     refresh();
   }
 
   @override
-  Iterable<K> get keys => value!.keys;
+  Iterable<K> get keys => value.keys;
 
   @override
   V? remove(Object? key) {
-    final val = _value!.remove(key);
+    final val = _value.remove(key);
     refresh();
     return val;
   }
@@ -85,8 +83,8 @@ extension MapExtension<K, V> on Map<K, V> {
   void assign(K key, V val) {
     if (this is RxMap) {
       final map = (this as RxMap);
-      map._value ??= <K, V>{};
-      map._value!.clear();
+      map._value;
+      map._value.clear();
       this[key] = val;
     } else {
       clear();

@@ -4,10 +4,8 @@ class RxSet<E> extends SetMixin<E>
     with NotifyManager<Set<E>>, RxObjectMixin<Set<E>>
     implements RxInterface<Set<E>> {
   RxSet([Set<E> initial = const {}]) {
-    if (initial != null) {
     _value = Set.from(initial);
   }
-  }
 
   /// Special override to push() element(s) in a reactive way
   /// inside the List,
@@ -41,30 +39,30 @@ class RxSet<E> extends SetMixin<E>
 
   @override
   bool add(E value) {
-    final val = _value!.add(value);
+    final val = _value.add(value);
     refresh();
     return val;
   }
 
   @override
   bool contains(Object? element) {
-    return value!.contains(element);
+    return value.contains(element);
   }
 
   @override
-  Iterator<E> get iterator => value!.iterator;
+  Iterator<E> get iterator => value.iterator;
 
   @override
-  int get length => value!.length;
+  int get length => value.length;
 
   @override
   E? lookup(Object? object) {
-    return value!.lookup(object);
+    return value.lookup(object);
   }
 
   @override
   bool remove(Object? item) {
-    var hasRemoved = _value!.remove(item);
+    var hasRemoved = _value.remove(item);
     if (hasRemoved) {
       refresh();
     }
@@ -73,36 +71,36 @@ class RxSet<E> extends SetMixin<E>
 
   @override
   Set<E> toSet() {
-    return value!.toSet();
+    return value.toSet();
   }
 
   @override
   void addAll(Iterable<E> item) {
-    _value!.addAll(item);
+    _value.addAll(item);
     refresh();
   }
 
   @override
   void clear() {
-    _value!.clear();
+    _value.clear();
     refresh();
   }
 
   @override
   void removeAll(Iterable<Object?> elements) {
-    _value!.removeAll(elements);
+    _value.removeAll(elements);
     refresh();
   }
 
   @override
   void retainAll(Iterable<Object?> elements) {
-    _value!.retainAll(elements);
+    _value.retainAll(elements);
     refresh();
   }
 
   @override
   void retainWhere(bool Function(E) E) {
-    _value!.retainWhere(E);
+    _value.retainWhere(E);
     refresh();
   }
 }
@@ -137,7 +135,7 @@ extension SetExtension<E> on Set<E> {
   /// Replaces all existing items of this list with [item]
   void assign(E item) {
     if (this is RxSet) {
-      (this as RxSet)._value ??= <E>{};
+      (this as RxSet)._value;
     }
 
     clear();
@@ -147,7 +145,7 @@ extension SetExtension<E> on Set<E> {
   /// Replaces all existing items of this list with [items]
   void assignAll(Iterable<E> items) {
     if (this is RxSet) {
-      (this as RxSet)._value ??= <E>{};
+      (this as RxSet)._value;
     }
     clear();
     addAll(items);

@@ -184,7 +184,6 @@ Worker interval<T>(
   bool? cancelOnError,
 }) {
   var debounceActive = false;
-  time ??= const Duration(seconds: 1);
   StreamSubscription sub = listener.listen(
     (event) async {
       if (debounceActive || !_conditional(condition)) return;

@@ -67,7 +67,7 @@ class GetXState<T extends DisposableInterface> extends State<GetX<T>> {
       } else {
         controller = widget.init;
         isCreator = true;
-        GetInstance().put<T?>(controller, tag: widget.tag);
+        GetInstance().put<T>(controller!, tag: widget.tag);
       }
     } else {
       controller = widget.init;

@@ -138,7 +138,6 @@ extension StateExt<T> on StateMixin<T> {
     Widget? onLoading,
     Widget? onEmpty,
   }) {
-    assert(widget != null);
     return SimpleBuilder(builder: (_) {
       if (status.isLoading) {
         return onLoading ?? const Center(child: CircularProgressIndicator());

@@ -51,7 +51,7 @@ typedef GetControllerBuilder<T extends DisposableInterface> = Widget Function(
 //   }
 // }
 
-class GetBuilder<T extends GetxController?> extends StatefulWidget {
+class GetBuilder<T extends GetxController> extends StatefulWidget {
   final GetControllerBuilder<T> builder;
   final bool global;
   final Object? id;
@@ -77,8 +77,7 @@ class GetBuilder<T extends GetxController?> extends StatefulWidget {
     this.id,
     this.didChangeDependencies,
     this.didUpdateWidget,
-  })  : assert(builder != null),
-        super(key: key);
+  }) : super(key: key);
 
   // static T of<T extends GetxController>(
   //   BuildContext context, {
@@ -103,7 +102,7 @@ class GetBuilder<T extends GetxController?> extends StatefulWidget {
   _GetBuilderState<T> createState() => _GetBuilderState<T>();
 }
 
-class _GetBuilderState<T extends GetxController?> extends State<GetBuilder<T?>>
+class _GetBuilderState<T extends GetxController> extends State<GetBuilder<T>>
     with GetStateUpdaterMixin {
   T? controller;
   bool? isCreator = false;
@@ -136,7 +135,7 @@ class _GetBuilderState<T extends GetxController?> extends State<GetBuilder<T?>>
       } else {
         controller = widget.init;
         isCreator = true;
-        GetInstance().put<T?>(controller, tag: widget.tag);
+        GetInstance().put<T>(controller!, tag: widget.tag);
       }
     } else {
       controller = widget.init;
@@ -145,7 +144,7 @@ class _GetBuilderState<T extends GetxController?> extends State<GetBuilder<T?>>
     }
 
     if (widget.filter != null) {
-      _filter = widget.filter!(controller);
+      _filter = widget.filter!(controller!);
     }
 
     _subscribeToController();
@@ -167,7 +166,7 @@ class _GetBuilderState<T extends GetxController?> extends State<GetBuilder<T?>>
   }
 
   void _filterUpdate() {
-    var newFilter = widget.filter!(controller);
+    var newFilter = widget.filter!(controller!);
     if (newFilter != _filter) {
       _filter = newFilter;
       getUpdate();
@@ -201,7 +200,7 @@ class _GetBuilderState<T extends GetxController?> extends State<GetBuilder<T?>>
 
   @override
   void didUpdateWidget(GetBuilder oldWidget) {
-    super.didUpdateWidget(oldWidget as GetBuilder<T?>);
+    super.didUpdateWidget(oldWidget as GetBuilder<T>);
     // to avoid conflicts when modifying a "grouped" id list.
     if (oldWidget.id != widget.id) {
       _subscribeToController();
@@ -215,7 +214,7 @@ class _GetBuilderState<T extends GetxController?> extends State<GetBuilder<T?>>
     //   model: controller,
     //   child: widget.builder(controller),
     // );
-    return widget.builder(controller);
+    return widget.builder(controller!);
   }
 }
 

@@ -21,7 +21,7 @@ class GetWidgetCacheElement extends ComponentElement {
 
   @override
   void mount(Element? parent, dynamic newSlot) {
-    cache?.onInit();
+    cache.onInit();
     super.mount(parent, newSlot);
   }
 

@@ -23,8 +23,7 @@ class MixinBuilder<T extends GetxController> extends StatelessWidget {
     this.id,
     this.didChangeDependencies,
     this.didUpdateWidget,
-  })  : assert(builder != null),
-        super(key: key);
+  }) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

@@ -64,7 +64,7 @@ class _ValueBuilderState<T> extends State<ValueBuilder<T?>> {
   @override
   void dispose() {
     super.dispose();
-    widget?.onDispose?.call();
+    widget.onDispose?.call();
     if (value is ChangeNotifier) {
       (value as ChangeNotifier?)?.dispose();
     } else if (value is StreamController) {
@@ -78,9 +78,7 @@ class _ValueBuilderState<T> extends State<ValueBuilder<T?>> {
 class SimpleBuilder extends StatefulWidget {
   final Widget Function(BuildContext) builder;
 
-  const SimpleBuilder({Key? key, required this.builder})
-      : assert(builder != null),
-        super(key: key);
+  const SimpleBuilder({Key? key, required this.builder}) : super(key: key);
 
   @override
   _SimpleBuilderState createState() => _SimpleBuilderState();

@@ -10,7 +10,8 @@ extension Trans on String? {
     // whether the key is also present.
     if (Get.translations.containsKey(
             "${Get.locale!.languageCode}_${Get.locale!.countryCode}") &&
-        Get.translations["${Get.locale!.languageCode}_${Get.locale!.countryCode}"]!
+        Get.translations[
+                "${Get.locale!.languageCode}_${Get.locale!.countryCode}"]!
             .containsKey(this)) {
       return Get.translations[
           "${Get.locale!.languageCode}_${Get.locale!.countryCode}"]![this!];

@@ -214,7 +214,7 @@ class GetUtils {
 
   /// Checks if string is phone number.
   static bool isPhoneNumber(String s) {
-    if (s == null || s.length > 16 || s.length < 9) return false;
+    if (s.length > 16 || s.length < 9) return false;
     return hasMatch(s, r'^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\./0-9]*$');
   }
 
@@ -413,10 +413,6 @@ class GetUtils {
 
   //Check if num is a cnpj
   static bool isCnpj(String cnpj) {
-    if (cnpj == null) {
-      return false;
-    }
-
     // Obter somente os números do CNPJ
     final numbers = cnpj.replaceAll(RegExp(r'[^0-9]'), '');
 
@@ -466,9 +462,9 @@ class GetUtils {
 
   /// Checks if the cpf is valid.
   static bool isCpf(String cpf) {
-    if (cpf == null) {
-      return false;
-    }
+    // if (cpf == null) {
+    //   return false;
+    // }
 
     // get only the numbers
     final numbers = cpf.replaceAll(RegExp(r'[^0-9]'), '');

@@ -148,7 +148,7 @@ referenceValue is ${calculePercentage(referenceValue, requestedValue)}% more tha
     print('GetValue delay $getx ms to made $times requests');
     print('-----------');
     print('''
-GetValue is ${calculePercentage(dart, getx).round()}% more fast than Default ValueNotifier with $times listeners''');
+GetValue is ${calculePercentage(dart, getx).round()}% more fast than Default ValueNotifier with $times requests''');
   });
 
   test('run benchmarks from Streams', () async {
@@ -161,7 +161,7 @@ GetValue is ${calculePercentage(dart, getx).round()}% more fast than Default Val
     var dart = await stream();
     print('-----------');
     print('''
-GetStream is ${calculePercentage(dart, mini).round()}% more fast than Default Stream with $times listeners''');
+GetStream is ${calculePercentage(dart, mini).round()}% more fast than Default Stream with $times requests''');
     print('-----------');
 
     times = 30000;
@@ -179,7 +179,7 @@ GetStream is ${calculePercentage(dart, mini).round()}% more fast than Default St
     print('getx_mini_stream delay $mini ms to made $times requests');
     print('-----------');
     print('''
-GetStream is ${calculePercentage(dart, mini).round()}% more fast than Default Stream with $times listeners''');
+GetStream is ${calculePercentage(dart, mini).round()}% more fast than Default Stream with $times requests''');
   });
 }
 

-import 'package:flutter_test/flutter_test.dart';
-import 'package:get/get.dart';
+// import 'package:flutter_test/flutter_test.dart';
+// import 'package:get/get.dart';
 
 void main() {
   // testWidgets(

-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:get/get.dart';
+// import 'package:flutter/material.dart';
+// import 'package:flutter_test/flutter_test.dart';
+// import 'package:get/get.dart';
 
 void main() {
   // testWidgets(
@@ -24,7 +24,8 @@ void main() {
   //   "GetPage name null",
   //   (tester) async {
   //     expect(
-  //       () => GetPage(page: () => Scaffold(), maintainState: null, name: null),
+  //       () => GetPage(page: () => Scaffold(),
+  // maintainState: null, name: null),
   //       throwsAssertionError,
   //     );
   //   },

@@ -6,9 +6,9 @@ import 'package:get/get.dart';
 void main() {
   test('once', () async {
     final count = 0.obs;
-    int? result = -1;
+    var result = -1;
     once(count, (dynamic _) {
-      result = _ as int?;
+      result = _ as int;
     });
     count.value++;
     await Future.delayed(Duration.zero);
@@ -23,9 +23,9 @@ void main() {
 
   test('ever', () async {
     final count = 0.obs;
-    int? result = -1;
-    ever(count, (dynamic _) {
-      result = _ as int?;
+    var result = -1;
+    ever<int>(count, (value) {
+      result = value;
     });
     count.value++;
     await Future.delayed(Duration.zero);

@@ -68,18 +68,18 @@ void main() {
     expect(find.text("single 0"), findsOneWidget);
   });
 
-  testWidgets(
-    "MixinBuilder with build null",
-    (test) async {
-      expect(
-        () => GetBuilder<Controller>(
-          init: Controller(),
-          builder: null,
-        ),
-        throwsAssertionError,
-      );
-    },
-  );
+  // testWidgets(
+  //   "MixinBuilder with build null",
+  //   (test) async {
+  //     expect(
+  //       () => GetBuilder<Controller>(
+  //         init: Controller(),
+  //         builder: null,
+  //       ),
+  //       throwsAssertionError,
+  //     );
+  //   },
+  // );
 }
 
 class Controller extends GetxController {