examples: pin jni to 1.0.0 (1.0.1 breaks aarch64 Linux builds)

jni 1.0.1, published 2026-07-27T01:10Z, added global_jni_env.c, which passes a
`va_list` where a `void *` is expected. On x86_64 va_list is an array type that
decays to a pointer so it compiles; on aarch64 it is a struct, so it is a hard
error and `flutter build linux` fails with 19 of them. Tracked upstream at
dart-lang/native#3498.

This surfaced on the release PR rather than as a scheduled failure because the
examples depend on the serious_python packages by path: bumping their version
invalidates the committed pubspec.lock, pub re-resolves the whole graph, and
picks up the newest transitive versions. Any PR touching package versions after
2026-07-27T01:10Z would have hit it. jni itself arrives via
path_provider -> path_provider_android -> jni_flutter -> jni.

jni_flutter 1.0.1 declares `jni: ^1.0.0`, so 1.0.0 satisfies it -- the override
narrows within the allowed range rather than overriding a constraint. Applied to
all three examples; only bridge_example runs in CI, but the other two break
identically for anyone building them on an ARM64 Linux host.

The flask_example / run_example locks also pick up the current path-dependency
version (4.0.0 -> 4.4.1); they were simply stale.

Author: FeodorFitsner

src/serious_python/example/bridge_example/pubspec.yaml

@@ -24,5 +24,14 @@ dev_dependencies:
     sdk: flutter
   flutter_lints: ^2.0.0
 
+# jni arrives transitively (path_provider -> path_provider_android ->
+# jni_flutter -> jni). 1.0.1 added global_jni_env.c, which passes a `va_list`
+# where a `void *` is expected: fine on x86_64, where va_list is an array type
+# that decays to a pointer, but a hard error on aarch64, where it's a struct.
+# That breaks `flutter build linux` on ARM64 hosts. Tracked upstream at
+# dart-lang/native#3498 — drop this override once a fixed jni is released.
+dependency_overrides:
+  jni: 1.0.0
+
 flutter:
   uses-material-design: true

src/serious_python/example/flask_example/pubspec.lock

@@ -156,7 +156,7 @@ packages:
     source: hosted
     version: "4.1.2"
   jni:
-    dependency: transitive
+    dependency: "direct overridden"
     description:
       name: jni
       sha256: c2230682d5bc2362c1c9e8d3c7f406d9cbba23ab3f2e203a025dd47e0fb2e68f
@@ -361,42 +361,42 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_android:
     dependency: transitive
     description:
       path: "../../../serious_python_android"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_darwin:
     dependency: transitive
     description:
       path: "../../../serious_python_darwin"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_linux:
     dependency: transitive
     description:
       path: "../../../serious_python_linux"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_platform_interface:
     dependency: transitive
     description:
       path: "../../../serious_python_platform_interface"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_windows:
     dependency: transitive
     description:
       path: "../../../serious_python_windows"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   shelf:
     dependency: transitive
     description:

src/serious_python/example/flask_example/pubspec.yaml

@@ -56,6 +56,15 @@ dev_dependencies:
 # following page: https://dart.dev/tools/pub/pubspec
 
 # The following section is specific to Flutter packages.
+# jni arrives transitively (path_provider -> path_provider_android ->
+# jni_flutter -> jni). 1.0.1 added global_jni_env.c, which passes a `va_list`
+# where a `void *` is expected: fine on x86_64, where va_list is an array type
+# that decays to a pointer, but a hard error on aarch64, where it's a struct.
+# That breaks `flutter build linux` on ARM64 hosts. Tracked upstream at
+# dart-lang/native#3498 — drop this override once a fixed jni is released.
+dependency_overrides:
+  jni: 1.0.0
+
 flutter:
 
   # The following line ensures that the Material Icons font is

src/serious_python/example/run_example/pubspec.lock

@@ -171,7 +171,7 @@ packages:
     source: sdk
     version: "0.0.0"
   jni:
-    dependency: transitive
+    dependency: "direct overridden"
     description:
       name: jni
       sha256: c2230682d5bc2362c1c9e8d3c7f406d9cbba23ab3f2e203a025dd47e0fb2e68f
@@ -384,42 +384,42 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_android:
     dependency: transitive
     description:
       path: "../../../serious_python_android"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_darwin:
     dependency: transitive
     description:
       path: "../../../serious_python_darwin"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_linux:
     dependency: transitive
     description:
       path: "../../../serious_python_linux"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_platform_interface:
     dependency: transitive
     description:
       path: "../../../serious_python_platform_interface"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   serious_python_windows:
     dependency: transitive
     description:
       path: "../../../serious_python_windows"
       relative: true
     source: path
-    version: "4.0.0"
+    version: "4.4.1"
   shelf:
     dependency: transitive
     description:

src/serious_python/example/run_example/pubspec.yaml

@@ -58,6 +58,15 @@ dev_dependencies:
 # following page: https://dart.dev/tools/pub/pubspec
 
 # The following section is specific to Flutter packages.
+# jni arrives transitively (path_provider -> path_provider_android ->
+# jni_flutter -> jni). 1.0.1 added global_jni_env.c, which passes a `va_list`
+# where a `void *` is expected: fine on x86_64, where va_list is an array type
+# that decays to a pointer, but a hard error on aarch64, where it's a struct.
+# That breaks `flutter build linux` on ARM64 hosts. Tracked upstream at
+# dart-lang/native#3498 — drop this override once a fixed jni is released.
+dependency_overrides:
+  jni: 1.0.0
+
 flutter:
 
   # The following line ensures that the Material Icons font is