diff --git a/pkg/analysis_server/bin/server.dart b/pkg/analysis_server/bin/server.dart
index 78101010bf1..283cbbd8499 100644
--- a/pkg/analysis_server/bin/server.dart
+++ b/pkg/analysis_server/bin/server.dart
@@ -5,7 +5,7 @@
 import 'package:analysis_server/starter.dart';
 
 /// Create and run an analysis server.
-void main(List<String> args) async {
+void main(List<String> args) {
   var starter = ServerStarter();
   starter.start(args);
 }
diff --git a/pkg/analysis_server/lib/src/lsp/progress.dart b/pkg/analysis_server/lib/src/lsp/progress.dart
index eb625d27168..9d25d53b72c 100644
--- a/pkg/analysis_server/lib/src/lsp/progress.dart
+++ b/pkg/analysis_server/lib/src/lsp/progress.dart
@@ -122,7 +122,7 @@ class _TokenProgressReporter extends ProgressReporter {
     _sendNotification(WorkDoneProgressEnd(message: message));
   }
 
-  void _sendNotification(ToJsonable value) async {
+  void _sendNotification(ToJsonable value) {
     _server.sendLspNotification(
       NotificationMessage(
         method: Method.progress,
diff --git a/pkg/analysis_server/test/src/cider/rename_test.dart b/pkg/analysis_server/test/src/cider/rename_test.dart
index 9df0c2f29b1..d35d4d405db 100644
--- a/pkg/analysis_server/test/src/cider/rename_test.dart
+++ b/pkg/analysis_server/test/src/cider/rename_test.dart
@@ -877,10 +877,7 @@ void f(bar a) {}
   }
 
   // Asserts that the results of the rename is the [expectedCode].
-  void _assertTestChangeResult(
-    String expectedCode,
-    List<ReplaceInfo> changes,
-  ) async {
+  void _assertTestChangeResult(String expectedCode, List<ReplaceInfo> changes) {
     var edits = <SourceEdit>[];
     for (var change in changes) {
       var offset =
diff --git a/pkg/analysis_server_plugin/test/src/plugin_server_error_test.dart b/pkg/analysis_server_plugin/test/src/plugin_server_error_test.dart
index 39c8fee5c67..bb165b081d5 100644
--- a/pkg/analysis_server_plugin/test/src/plugin_server_error_test.dart
+++ b/pkg/analysis_server_plugin/test/src/plugin_server_error_test.dart
@@ -22,7 +22,7 @@ import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'lint_rules.dart';
 import 'plugin_server_test_base.dart';
 
-void main() async {
+void main() {
   defineReflectiveTests(PluginServerErrorTest);
 }
 
diff --git a/pkg/analysis_server_plugin/test/src/plugin_server_test.dart b/pkg/analysis_server_plugin/test/src/plugin_server_test.dart
index 9904dbbb87f..af6e4c8319e 100644
--- a/pkg/analysis_server_plugin/test/src/plugin_server_test.dart
+++ b/pkg/analysis_server_plugin/test/src/plugin_server_test.dart
@@ -19,7 +19,7 @@ import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'lint_rules.dart';
 import 'plugin_server_test_base.dart';
 
-void main() async {
+void main() {
   defineReflectiveTests(PluginServerTest);
 }
 
diff --git a/pkg/analyzer/lib/src/workspace/blaze_watcher.dart b/pkg/analyzer/lib/src/workspace/blaze_watcher.dart
index 9360d000c41..bcd4d206efc 100644
--- a/pkg/analyzer/lib/src/workspace/blaze_watcher.dart
+++ b/pkg/analyzer/lib/src/workspace/blaze_watcher.dart
@@ -169,7 +169,7 @@ class BlazeFileWatcherIsolate {
 
   Future<void> get hasFinished => _hasFinished.future;
 
-  void handleRequest(dynamic request) async {
+  void handleRequest(dynamic request) {
     if (request is BlazeWatcherStartWatching) {
       var workspaceData = _perWorkspaceData[request.workspace];
       if (workspaceData == null) {
diff --git a/pkg/analyzer/test/src/dart/analysis/file_state_test.dart b/pkg/analyzer/test/src/dart/analysis/file_state_test.dart
index a5b8643067c..16be3a9c7d1 100644
--- a/pkg/analyzer/test/src/dart/analysis/file_state_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/file_state_test.dart
@@ -394,7 +394,7 @@ var x = 0;
 
 @reflectiveTest
 class FileSystemState_BlazeWorkspaceTest extends BlazeWorkspaceResolutionTest {
-  void test_getFileForUri_hasGenerated_askGeneratedFirst() async {
+  void test_getFileForUri_hasGenerated_askGeneratedFirst()  {
     var relPath = 'dart/my/test/a.dart';
     var writablePath = convertPath('$workspaceRootPath/$relPath');
     var generatedPath = convertPath('$workspaceRootPath/blaze-bin/$relPath');
@@ -422,7 +422,7 @@ class FileSystemState_BlazeWorkspaceTest extends BlazeWorkspaceResolutionTest {
     expect(writableFile2, same(generatedFile));
   }
 
-  void test_getFileForUri_hasGenerated_askWritableFirst() async {
+  void test_getFileForUri_hasGenerated_askWritableFirst() {
     var relPath = 'dart/my/test/a.dart';
     var writablePath = convertPath('$workspaceRootPath/$relPath');
     var generatedPath = convertPath('$workspaceRootPath/blaze-bin/$relPath');
@@ -450,7 +450,7 @@ class FileSystemState_BlazeWorkspaceTest extends BlazeWorkspaceResolutionTest {
     expect(writableFile2, same(generatedFile));
   }
 
-  void test_getFileForUri_nestedLib_notCanonicalUri() async {
+  void test_getFileForUri_nestedLib_notCanonicalUri() {
     var outer = getFile('$workspaceRootPath/my/outer/lib/a.dart');
     var outerUri = Uri.parse('package:my.outer/a.dart');
 
diff --git a/pkg/analyzer/test/src/dart/analysis/session_test.dart b/pkg/analyzer/test/src/dart/analysis/session_test.dart
index abbbbae82a1..1f5425343be 100644
--- a/pkg/analyzer/test/src/dart/analysis/session_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/session_test.dart
@@ -50,7 +50,7 @@ class AnalysisSessionImpl_BlazeWorkspaceTest
     expect(result.uri.toString(), 'package:dart.my/a.dart');
   }
 
-  void test_getParsedLibrary_notFileOfUri() async {
+  void test_getParsedLibrary_notFileOfUri() {
     var relPath = 'dart/my/lib/a.dart';
     newFile('$workspaceRootPath/blaze-bin/$relPath', '');
 
diff --git a/pkg/analyzer/test/src/dart/resolution/library_element_test.dart b/pkg/analyzer/test/src/dart/resolution/library_element_test.dart
index 175ac53b943..f4de53b4c82 100644
--- a/pkg/analyzer/test/src/dart/resolution/library_element_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/library_element_test.dart
@@ -167,7 +167,7 @@ class LibraryElementTest_featureSet extends PubPackageResolutionTest {
   void _assertLanguageVersion({
     required Version package,
     required Version? override,
-  }) async {
+  }) {
     var element = result.libraryElement2;
     expect(element.languageVersion.package, package);
     expect(element.languageVersion.override, override);
diff --git a/pkg/analyzer/test/src/diagnostics/invalid_export_of_internal_element_test.dart b/pkg/analyzer/test/src/diagnostics/invalid_export_of_internal_element_test.dart
index 92717aa9734..036ecf9d3ec 100644
--- a/pkg/analyzer/test/src/diagnostics/invalid_export_of_internal_element_test.dart
+++ b/pkg/analyzer/test/src/diagnostics/invalid_export_of_internal_element_test.dart
@@ -33,7 +33,7 @@ class InvalidExportOfInternalElement_BlazePackageTest
   String get testPackageLibPath => myPackageLibPath;
 
   @override
-  void setUp() async {
+  void setUp() {
     super.setUp();
     addMeta();
     newFile('$testPackageBlazeBinPath/my.packages', '');
@@ -279,7 +279,7 @@ export 'package:test/src/foo.dart';
 class InvalidExportOfInternalElement_PubPackageTest
     extends PubPackageResolutionTest with InvalidExportOfInternalElementTest {
   @override
-  void setUp() async {
+  void setUp() {
     super.setUp();
     writeTestPackageConfigWithMeta();
     newPubspecYamlFile(testPackageRootPath, r'''
diff --git a/pkg/analyzer/test/src/diagnostics/invalid_internal_annotation_test.dart b/pkg/analyzer/test/src/diagnostics/invalid_internal_annotation_test.dart
index 2126eaeef42..62d6e276031 100644
--- a/pkg/analyzer/test/src/diagnostics/invalid_internal_annotation_test.dart
+++ b/pkg/analyzer/test/src/diagnostics/invalid_internal_annotation_test.dart
@@ -18,7 +18,7 @@ class InvalidInternalAnnotationTest extends PubPackageResolutionTest {
   String get testPackageLibSrcFilePath => '$testPackageLibPath/src/foo.dart';
 
   @override
-  void setUp() async {
+  void setUp() {
     super.setUp();
     writeTestPackageConfigWithMeta();
     newPubspecYamlFile(testPackageRootPath, r'''
diff --git a/pkg/analyzer/test/src/task/options_test.dart b/pkg/analyzer/test/src/task/options_test.dart
index 22863a1a819..065018bd592 100644
--- a/pkg/analyzer/test/src/task/options_test.dart
+++ b/pkg/analyzer/test/src/task/options_test.dart
@@ -476,7 +476,7 @@ class OptionsProviderTest with ResourceProviderMixin {
   }
 
   void assertErrorsInOptionsFile(
-      String code, List<ExpectedError> expectedErrors) async {
+      String code, List<ExpectedError> expectedErrors) {
     newFile(optionsFilePath, code);
     var errors = analyzeAnalysisOptions(
       sourceFactory.forUri2(toUri(optionsFilePath))!,
diff --git a/pkg/analyzer/test/src/workspace/blaze_test.dart b/pkg/analyzer/test/src/workspace/blaze_test.dart
index 606a1fbee67..fb935fce0be 100644
--- a/pkg/analyzer/test/src/workspace/blaze_test.dart
+++ b/pkg/analyzer/test/src/workspace/blaze_test.dart
@@ -210,7 +210,7 @@ language = struct(
   void _assertLanguageVersion({
     required Version package,
     required Version? override,
-  }) async {
+  }) {
     var element = result.libraryElement2;
     expect(element.languageVersion.package, package);
     expect(element.languageVersion.override, override);
diff --git a/pkg/analyzer/test/src/workspace/blaze_watcher_test.dart b/pkg/analyzer/test/src/workspace/blaze_watcher_test.dart
index 9d3aed83f52..201c9390430 100644
--- a/pkg/analyzer/test/src/workspace/blaze_watcher_test.dart
+++ b/pkg/analyzer/test/src/workspace/blaze_watcher_test.dart
@@ -24,7 +24,7 @@ main() {
 class BlazeWatcherTest with ResourceProviderMixin {
   late final BlazeWorkspace workspace;
 
-  void test_blazeFileWatcher() async {
+  void test_blazeFileWatcher() {
     _addResources([
       '/workspace/${file_paths.blazeWorkspaceMarker}',
     ]);
@@ -235,7 +235,7 @@ class BlazeWatcherTest with ResourceProviderMixin {
     recPort.close();
   }
 
-  void test_blazeFileWatcherWithFolder() async {
+  void test_blazeFileWatcherWithFolder() {
     _addResources([
       '/workspace/${file_paths.blazeWorkspaceMarker}',
     ]);
diff --git a/pkg/analyzer/tool/test_log_parser/test_log_parser.dart b/pkg/analyzer/tool/test_log_parser/test_log_parser.dart
index 2dd0b215e31..60ea5707be2 100644
--- a/pkg/analyzer/tool/test_log_parser/test_log_parser.dart
+++ b/pkg/analyzer/tool/test_log_parser/test_log_parser.dart
@@ -6,7 +6,7 @@ import 'dart:io';
 
 /// A simple command-line app that reads the content of a file containing the
 /// output from `test.py` and performs some simple analysis of it.
-void main(List<String> args) async {
+void main(List<String> args) {
   if (args.length != 1) {
     print('Usage: dart test_log_parser logFilePath');
     return;