if (gradle.parent == null) {
                // Only register the service for the root build
                def services = gradle.services
                def outputProgress = gradle.sharedServices.registerIfAbsent("outputProgress", OutputProgressService) {
                    parameters.outputFile.set(outputFile)
                }

        Object details = progressEvent.getDetails();
        if (details instanceof TestListenerBuildOperationAdapter.OutputProgress) {
            TestListenerBuildOperationAdapter.OutputProgress progress = (TestListenerBuildOperationAdapter.OutputProgress) details;
            InternalTestOutputDescriptor descriptor = new DefaultTestOutputDescriptor(new OperationIdentifier(idFactory.nextId()), buildOperationId);

            it.displayName == "Execute executeTask for :runInWorker"
        }
        taskActionOperation != null
        def outputProgress = taskActionOperation.progress(StyledTextOutputEvent)
        // Output may come in different orders, so we just check that all the expected messages are there.
        def text = outputProgress*.details.spans*.text.flatten().join()
        text.count("Unrecognized option: --not-a-real-argument") == 1

        compileJavaOperation != null
        def outputProgress = compileJavaOperation.progress(StyledTextOutputEvent)
        // Output may come in different orders, so we just check that all the expected messages are there.
        def text = outputProgress*.details.spans*.text.flatten().join()
        text.count("Unrecognized option: --not-a-real-argument") == 1

        @Override
        public long getStartTime() {
            return startTime;
        }
    }

    public static class OutputProgress implements ExecuteTestBuildOperationType.Output {
        private final TestOutputEvent event;

        private OutputProgress(TestOutputEvent event) {
            this.event = event;
        }

        @Override
        public TestOutputEvent getOutput() {

Class <org.gradle.api.internal.tasks.testing.operations.TestListenerBuildOperationAdapter$OutputProgress> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (TestListenerBuildOperationAdapter.java:0)