diff --git a/pkgs/jnigen/analysis_options.yaml b/pkgs/jnigen/analysis_options.yaml
index f8e2734f9..8b09d6e9a 100644
--- a/pkgs/jnigen/analysis_options.yaml
+++ b/pkgs/jnigen/analysis_options.yaml
@@ -20,7 +20,6 @@ linter:
     unawaited_futures: true
     prefer_const_constructors: true
     prefer_relative_imports: true
-    type_annotate_public_apis: false # TODO(https://github.com/dart-lang/native/issues/1282): Fix.
     unnecessary_lambdas: false # TODO(https://github.com/dart-lang/native/issues/1282): Fix.
     unnecessary_parenthesis: false # TODO(https://github.com/dart-lang/native/issues/1282): Fix.
     unreachable_from_main: false # TODO(https://github.com/dart-lang/native/issues/1282): Fix.
diff --git a/pkgs/jnigen/lib/src/bindings/unnester.dart b/pkgs/jnigen/lib/src/bindings/unnester.dart
index d9323df91..5b2a4ebee 100644
--- a/pkgs/jnigen/lib/src/bindings/unnester.dart
+++ b/pkgs/jnigen/lib/src/bindings/unnester.dart
@@ -13,7 +13,7 @@ class Unnester extends Visitor<Classes, void> {
   const Unnester();
 
   @override
-  void visit(node) {
+  void visit(Classes node) {
     final classProcessor = _ClassUnnester();
     for (final classDecl in node.decls.values) {
       classDecl.accept(classProcessor);
diff --git a/pkgs/jnigen/test/simple_package_test/generate.dart b/pkgs/jnigen/test/simple_package_test/generate.dart
index b37c11f79..ce498c0dc 100644
--- a/pkgs/jnigen/test/simple_package_test/generate.dart
+++ b/pkgs/jnigen/test/simple_package_test/generate.dart
@@ -21,9 +21,9 @@ const preamble = '''
 
 ''';
 
-var javaPrefix = join('com', 'github', 'dart_lang', 'jnigen');
+final javaPrefix = join('com', 'github', 'dart_lang', 'jnigen');
 
-var javaFiles = [
+final javaFiles = [
   join(javaPrefix, 'simple_package', 'Example.java'),
   join(javaPrefix, 'pkg2', 'C2.java'),
   join(javaPrefix, 'pkg2', 'Example.java'),