diff --git a/.github/labeler.yml b/.github/labeler.yml
index 25aaad6d6..4ad6406d0 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -6,6 +6,12 @@
 'package:ffigen':
   - 'pkgs/ffigen/**'
 
+'package:jnigen':
+  - 'pkgs/jnigen/**'
+
+'package:jni':
+  - 'pkgs/jni/**'
+
 'package:native_assets_builder':
   - 'pkgs/native_assets_builder/**'
 
diff --git a/pkgs/jni/example/pubspec.lock b/pkgs/jni/example/pubspec.lock
index 0da0519cb..273d90f5f 100644
--- a/pkgs/jni/example/pubspec.lock
+++ b/pkgs/jni/example/pubspec.lock
@@ -61,10 +61,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.2"
+    version: "1.18.0"
   convert:
     dependency: transitive
     description:
@@ -77,10 +77,10 @@ packages:
     dependency: transitive
     description:
       name: coverage
-      sha256: "2fb815080e44a09b85e0f2ca8a820b15053982b2e714b59267719e8a9ff17097"
+      sha256: ac86d3abab0f165e4b8f561280ff4e066bceaac83c424dd19f1ae2c2fcd12ca9
       url: "https://pub.dev"
     source: hosted
-    version: "1.6.3"
+    version: "1.7.1"
   crypto:
     dependency: transitive
     description:
@@ -117,10 +117,10 @@ packages:
     dependency: transitive
     description:
       name: file
-      sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
+      sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
       url: "https://pub.dev"
     source: hosted
-    version: "6.1.4"
+    version: "7.0.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -186,6 +186,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      sha256: "3bc132a9dbce73a7e4a21a17d06e1878839ffbf975568bc875c60537824b0c4d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.18.1"
   io:
     dependency: transitive
     description:
@@ -200,7 +208,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.6.1"
+    version: "0.8.0-wip"
   js:
     dependency: transitive
     description:
@@ -209,6 +217,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.6.7"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "7e108028e3d258667d079986da8c0bc32da4cb57431c2af03b1dc1038621a9dc"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.0.13"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: b06739349ec2477e943055aea30172c5c7000225f79dad4702e2ec0eda79a6ff
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.5"
   lints:
     dependency: transitive
     description:
@@ -237,18 +261,18 @@ packages:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
+      sha256: "0e0a020085b65b6083975e499759762399b4475f766c21668c4ecca34ea74e5a"
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.0"
+    version: "0.8.0"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: "3c74dbf8763d36539f114c799d8a2d87343b5067e9d796ca22b5eb8437090ee3"
+      sha256: d584fa6707a52763a52446f02cc621b077888fb63b93bbcb1143a7be5a0c0c04
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.11.0"
   mime:
     dependency: transitive
     description:
@@ -285,10 +309,10 @@ packages:
     dependency: transitive
     description:
       name: platform
-      sha256: "4a451831508d7d6ca779f7ac6e212b4023dd5a7d08a27a63da33756410e32b76"
+      sha256: "0a279f0707af40c890e80b1e9df8bb761694c074ba7e1d4ab1bc4b728e200b59"
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.0"
+    version: "3.1.3"
   plugin_platform_interface:
     dependency: transitive
     description:
@@ -309,10 +333,10 @@ packages:
     dependency: transitive
     description:
       name: process
-      sha256: "53fd8db9cec1d37b0574e12f07520d582019cb6c44abf5479a01505099a34a09"
+      sha256: "266ca5be5820feefc777793d0a583acfc8c40834893c87c00c6c09e2cf58ea42"
       url: "https://pub.dev"
     source: hosted
-    version: "4.2.4"
+    version: "5.0.1"
   pub_semver:
     dependency: transitive
     description:
@@ -386,18 +410,18 @@ packages:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   string_scanner:
     dependency: transitive
     description:
@@ -426,26 +450,26 @@ packages:
     dependency: "direct dev"
     description:
       name: test
-      sha256: "13b41f318e2a5751c3169137103b60c584297353d4b1761b66029bae6411fe46"
+      sha256: a1f7595805820fcc05e5c52e3a231aedd0b72972cb333e8c738a8b1239448b6f
       url: "https://pub.dev"
     source: hosted
-    version: "1.24.3"
+    version: "1.24.9"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
+      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.0"
+    version: "0.6.1"
   test_core:
     dependency: transitive
     description:
       name: test_core
-      sha256: "99806e9e6d95c7b059b7a0fc08f07fc53fabe54a829497f0d9676299f1e8637e"
+      sha256: a757b14fc47507060a162cc2530d9a4a2f92f5100a952c7443b5cad5ef5b106a
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.3"
+    version: "0.5.9"
   typed_data:
     dependency: transitive
     description:
@@ -466,10 +490,10 @@ packages:
     dependency: transitive
     description:
       name: vm_service
-      sha256: c620a6f783fa22436da68e42db7ebbf18b8c44b9a46ab911f666ff09ffd9153f
+      sha256: b3d56ff4341b8f182b96aceb2fa20e3dcb336b9f867bc0eafc0de10f1048e957
       url: "https://pub.dev"
     source: hosted
-    version: "11.7.1"
+    version: "13.0.0"
   watcher:
     dependency: transitive
     description:
@@ -482,10 +506,10 @@ packages:
     dependency: transitive
     description:
       name: web
-      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      sha256: afe077240a270dcfd2aafe77602b4113645af95d0ad31128cc02bce5ac5d5152
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.4-beta"
+    version: "0.3.0"
   web_socket_channel:
     dependency: transitive
     description:
@@ -498,10 +522,10 @@ packages:
     dependency: transitive
     description:
       name: webdriver
-      sha256: "3c923e918918feeb90c4c9fdf1fe39220fa4c0e8e2c0fffaded174498ef86c49"
+      sha256: "003d7da9519e1e5f329422b36c4dcdf18d7d2978d1ba099ea4e45ba490ed845e"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.2"
+    version: "3.0.3"
   webkit_inspection_protocol:
     dependency: transitive
     description:
@@ -519,5 +543,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.1.0 <4.0.0"
+  dart: ">=3.2.0-194.0.dev <4.0.0"
   flutter: ">=2.11.0"
diff --git a/pkgs/jni/test/jobject_test.dart b/pkgs/jni/test/jobject_test.dart
index a63828cfb..cc0c3a25f 100644
--- a/pkgs/jni/test/jobject_test.dart
+++ b/pkgs/jni/test/jobject_test.dart
@@ -3,7 +3,6 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:io';
-import 'dart:ffi';
 import 'dart:isolate';
 
 import 'package:test/test.dart';
@@ -244,8 +243,27 @@ void run({required TestRunnerCallback testRunner}) {
     });
   });
 
-  testRunner("Isolate", () {
-    Isolate.spawn(doSomeWorkInIsolate, null);
+  testRunner("Isolate", () async {
+    final receivePort = ReceivePort();
+    await Isolate.spawn((sendPort) {
+      // On standalone target, make sure to call [setDylibDir] before accessing
+      // any JNI function in a new isolate.
+      //
+      // otherwise subsequent JNI calls will throw a "library not found" exception.
+      Jni.setDylibDir(dylibDir: "build/jni_libs");
+      final random = Jni.newInstance("java/util/Random", "()V", []);
+      final result = random.callMethodByName<int>(
+          "nextInt", "(I)I", [256], JniCallType.intType);
+      random.release();
+      // A workaround for `--pause-isolates-on-exit`. Otherwise getting test
+      // with coverage pauses indefinitely here.
+      // https://github.com/dart-lang/coverage/issues/472
+      sendPort.send(result);
+      Isolate.current.kill();
+    }, receivePort.sendPort);
+    final random = await receivePort.first as int;
+    expect(random, greaterThanOrEqualTo(0));
+    expect(random, lessThan(256));
   });
 
   testRunner("Methods rethrow exceptions in Java as JniException", () {
@@ -276,18 +294,3 @@ void run({required TestRunnerCallback testRunner}) {
     expect(maxLong, equals(maxLongInJava));
   });
 }
-
-void doSomeWorkInIsolate(Void? _) {
-  // On standalone target, make sure to call [setDylibDir] before accessing
-  // any JNI function in a new isolate.
-  //
-  // otherwise subsequent JNI calls will throw a "library not found" exception.
-  Jni.setDylibDir(dylibDir: "build/jni_libs");
-  final random = Jni.newInstance("java/util/Random", "()V", []);
-  // final r = random.callMethodByName<int>("nextInt", "(I)I", [256]);
-  // expect(r, lessThan(256));
-  // Expect throws an [OutsideTestException]
-  // but you can uncomment below print and see it works
-  // print("\n$r");
-  random.release();
-}
diff --git a/pkgs/jnigen/test/jackson_core_test/generated_files_test.dart b/pkgs/jnigen/test/jackson_core_test/generated_files_test.dart
index 818e5d071..cc53c8cf8 100644
--- a/pkgs/jnigen/test/jackson_core_test/generated_files_test.dart
+++ b/pkgs/jnigen/test/jackson_core_test/generated_files_test.dart
@@ -33,5 +33,5 @@ void main() async {
     final config = getConfig(generateFullVersion: true);
     config.outputConfig.bindingsType = BindingsType.dartOnly;
     await generateAndAnalyzeBindings(config);
-  }, timeout: const Timeout.factor(2), tags: largeTestTag);
+  }, timeout: const Timeout(Duration(minutes: 2)), tags: largeTestTag);
 }
diff --git a/pkgs/jnigen/test/test_util/test_util.dart b/pkgs/jnigen/test/test_util/test_util.dart
index 8fbc7ce44..2a52b75c4 100644
--- a/pkgs/jnigen/test/test_util/test_util.dart
+++ b/pkgs/jnigen/test/test_util/test_util.dart
@@ -225,10 +225,10 @@ void generateAndCompareBothModes(
 ) {
   test('$description (cBased)', () async {
     await generateAndCompareBindings(cBasedConfig);
-  });
+  }, timeout: const Timeout(Duration(minutes: 2)));
   test('$description (dartOnly)', () async {
     await generateAndCompareBindings(dartOnlyConfig);
-  });
+  }, timeout: const Timeout(Duration(minutes: 2)));
 }
 
 List<String> findFilesWithSuffix(Directory dir, String suffix) {