Linux framework_tests_misc is 2.02% flaky

[fluttergithubbot]

The post-submit test builder Linux framework_tests_misc had a flaky ratio 2.02% for the past (up to) 100 commits, which is above our 2.00% threshold.

One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20framework_tests_misc/17221
Commit: 4c567a9

Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20framework_tests_misc/17221
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20framework_tests_misc/17211

Recent test runs:
https://flutter-dashboard.appspot.com/#/build?taskFilter=Linux%20framework_tests_misc

Please follow https://github.com/flutter/flutter/wiki/Reducing-Test-Flakiness#fixing-flaky-tests to fix the flakiness and enable the test back after validating the fix (internal dashboard to validate: go/flutter_test_flakiness).

[goderbauer]

Looks like in both cases a native android test for package:integration_test is failing.

RUNNING: cd packages/integration_test/example/android; gradlew :integration_test:testDebugUnitTest --tests dev.flutter.plugins.integration_test.FlutterDeviceScreenshotTest
workingDirectory: /b/s/w/ir/x/w/flutter/packages/integration_test/example/android, executable: /b/s/w/ir/x/w/flutter/packages/integration_test/example/android/gradlew, arguments: [:integration_test:testDebugUnitTest, --tests, dev.flutter.plugins.integration_test.FlutterDeviceScreenshotTest]
Downloading https://services.gradle.org/distributions/gradle-8.3-all.zip
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Unzipping /b/s/w/ir/cache/gradle/wrapper/dists/gradle-8.3-all/6en3ugtfdg5xnpx44z4qbwgas/gradle-8.3-all.zip to /b/s/w/ir/cache/gradle/wrapper/dists/gradle-8.3-all/6en3ugtfdg5xnpx44z4qbwgas
Set executable permissions for: /b/s/w/ir/cache/gradle/wrapper/dists/gradle-8.3-all/6en3ugtfdg5xnpx44z4qbwgas/gradle-8.3/bin/gradle

Welcome to Gradle 8.3!

Here are the highlights of this release:
 - Faster Java compilation
 - Reduced memory usage
 - Support for running on Java 20

For more details see https://docs.gradle.org/8.3/release-notes.html

To honour the JVM settings for this build a single-use Daemon process will be forked. For more on this, please refer to https://docs.gradle.org/8.3/userguide/gradle_daemon.html#sec:disabling_the_daemon in the Gradle documentation.
Daemon will be stopped at the end of the build 
> Task :gradle:compileJava NO-SOURCE
> Task :gradle:compileGroovy
> Task :gradle:pluginDescriptors
> Task :gradle:processResources
> Task :gradle:classes
> Task :gradle:jar

> Configure project :app
w: file:///b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/kotlin/dependency_version_checker.gradle.kts:107:40: Variable 'agpVersion' initializer is redundant
w: file:///b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/kotlin/dependency_version_checker.gradle.kts:108:40: Variable 'kgpVersion' initializer is redundant
w: file:///b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/kotlin/dependency_version_checker.gradle.kts:143:28: Parameter 'project' is never used
w: file:///b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/kotlin/dependency_version_checker.gradle.kts:152:40: Variable 'agpVersion' initializer is redundant
w: file:///b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/kotlin/dependency_version_checker.gradle.kts:167:55: 'Version' is deprecated. Deprecated in Java
w: file:///b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/kotlin/dependency_version_checker.gradle.kts:195:56: Unnecessary non-null assertion (!!) on a non-null receiver of type Any
w: file:///b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/kotlin/dependency_version_checker.gradle.kts:344:28: The corresponding parameter in the supertype 'Comparable' is named 'other'. This may cause problems when calling this function with named arguments.
Warning: unable to detect project KGP version. Skipping version checking. 
This may be because you have applied KGP after the Flutter Gradle Plugin.
WARNING: We recommend using a newer Android Gradle plugin to use compileSdk = 34

This Android Gradle plugin (8.1.0) was tested up to compileSdk = 33 (and compileSdkPreview = "UpsideDownCakePrivacySandbox").

You are strongly encouraged to update your project to use a newer
Android Gradle plugin that has been tested with compileSdk = 34.

If you are already using the latest version of the Android Gradle plugin,
you may need to wait until a newer version with support for compileSdk = 34 is available.

To suppress this warning, add/update
    android.suppressUnsupportedCompileSdk=34
to this project's gradle.properties.
Errors during XML parse:
Additionally, the fallback loader failed to parse the XML.
Checking the license for package Android SDK Build-Tools 33.0.1 in /b/s/w/ir/cache/android/sdk/licenses
License for package Android SDK Build-Tools 33.0.1 accepted.
Preparing "Install Android SDK Build-Tools 33.0.1 v.33.0.1".
"Install Android SDK Build-Tools 33.0.1 v.33.0.1" ready.
Installing Android SDK Build-Tools 33.0.1 in /b/s/w/ir/cache/android/sdk/build-tools/33.0.1
"Install Android SDK Build-Tools 33.0.1 v.33.0.1" complete.
"Install Android SDK Build-Tools 33.0.1 v.33.0.1" finished.

> Task :integration_test:preBuild UP-TO-DATE
> Task :integration_test:preDebugBuild UP-TO-DATE
> Task :integration_test:generateDebugBuildConfig
> Task :integration_test:generateDebugResValues
> Task :integration_test:generateDebugResources
> Task :integration_test:packageDebugResources
> Task :integration_test:preDebugUnitTestBuild UP-TO-DATE
> Task :integration_test:javaPreCompileDebug
> Task :integration_test:javaPreCompileDebugUnitTest
> Task :integration_test:processDebugJavaRes NO-SOURCE
> Task :integration_test:processDebugUnitTestJavaRes NO-SOURCE
> Task :integration_test:parseDebugLocalResources

> Task :integration_test:processDebugManifest
package="dev.flutter.integration_test" found in source AndroidManifest.xml: /b/s/w/ir/x/w/flutter/packages/integration_test/android/src/main/AndroidManifest.xml.
Setting the namespace via the package attribute in the source AndroidManifest.xml is no longer supported, and the value is ignored.
Recommendation: remove package="dev.flutter.integration_test" from the source AndroidManifest.xml: /b/s/w/ir/x/w/flutter/packages/integration_test/android/src/main/AndroidManifest.xml.

> Task :integration_test:generateDebugRFile
> Task :integration_test:compileDebugJavaWithJavac
> Task :integration_test:bundleLibRuntimeToJarDebug
> Task :integration_test:bundleLibCompileToJarDebug
> Task :integration_test:generateDebugUnitTestStubRFile
> Task :integration_test:compileDebugUnitTestJavaWithJavac

> Task :integration_test:testDebugUnitTest

dev.flutter.plugins.integration_test.FlutterDeviceScreenshotTest > getFlutterView_returnsFlutterViewForFlutterActivity FAILED
    java.lang.AssertionError at MavenArtifactFetcher.java:129
        Caused by: java.util.concurrent.ExecutionException at AbstractFuture.java:588
            Caused by: java.net.SocketException at NioSocketImpl.java:323

OpenJDK 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended

> Task :integration_test:testDebugUnitTest FAILED

3 tests completed, 1 failed

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':integration_test:testDebugUnitTest'.
> There were failing tests. See the report at: file:///b/s/w/ir/x/w/flutter/packages/integration_test/example/build/integration_test/reports/tests/testDebugUnitTest/index.html

* Try:
> Run with --scan to get full insights.

BUILD FAILED in 2m 41s
18 actionable tasks: 18 executed
╔═╡ERROR #1╞════════════════════════════════════════════════════════════════════
║ Command: gradlew :integration_test:testDebugUnitTest --tests dev.flutter.plugins.integration_test.FlutterDeviceScreenshotTest
║ Command exited with exit code 1 but expected zero exit code.
║ Working directory: /b/s/w/ir/x/w/flutter/packages/integration_test/example/android
╚═══════════════════════════════════════════════════════════════════════════════

[goderbauer]

@gmackall I believe you added this test in #132406. Any chance you could take a look at its flakiness?

[gmackall]

Yep, I'll take a look