private final BuildOperationDescriptor description;
    private final AtomicBoolean running = new AtomicBoolean();
    private final long startTime;

    public BuildOperationState(BuildOperationDescriptor descriptor, long startTime) {
        this.startTime = startTime;
        this.description = descriptor;
    }

    public BuildOperationDescriptor getDescription() {
        return description;
    }

        return mutationGuard;
    }

    private final static BuildOperationDescriptor.Builder ALLPROJECTS_DETAILS = computeConfigurationBlockBuildOperationDetails("allprojects");
    private final static BuildOperationDescriptor.Builder SUBPROJECTS_DETAILS = computeConfigurationBlockBuildOperationDetails("subprojects");

            delegate.prepareProjects(gradle);
            context.setResult(CONFIGURE_BUILD_RESULT);
        }

        @Override
        public BuildOperationDescriptor.Builder description() {
            BuildOperationDescriptor.Builder builder = BuildOperationDescriptor.displayName(gradle.contextualize("Configure build"));
            if (gradle.isRootBuild()) {
                builder.metadata(BuildOperationCategory.CONFIGURE_ROOT_BUILD);

                context.failed(result.getFailure());
            }
            return result;
        }

        @Override
        public BuildOperationDescriptor.Builder description() {
            BuildOperationDescriptor.Builder builder = BuildOperationDescriptor.displayName(gradle.contextualize("Run tasks"));
            if (gradle.isRootBuild()) {

            gradle.getBuildListenerBroadcaster().projectsEvaluated(gradle);
            context.setResult(PROJECTS_EVALUATED_RESULT);
        }

        @Override
        public BuildOperationDescriptor.Builder description() {
            return BuildOperationDescriptor.displayName(gradle.contextualize("Notify projectsEvaluated listeners"))
                .details(new NotifyProjectsEvaluatedBuildOperationType.Details() {
                    @Override

    ProgressLogger newOperation(Class<?> loggerCategory) {
        return new Logger(messages)
    }

    ProgressLogger newOperation(Class<?> loggerCategory, BuildOperationDescriptor buildOperationDescriptor) {
        return new Logger(messages)
    }

    ProgressLogger newOperation(Class<?> loggerClass, ProgressLogger parent) {
        return new Logger(messages)
    }

    List<String> getRecordedMessages() {

                    GFileUtils.deleteQuietly(oldXmlFile);
                }
            }

            @Override
            public BuildOperationDescriptor.Builder description() {
                return BuildOperationDescriptor.displayName("Delete old JUnit XML results");
            }
        });

        buildOperationExecutor.runAll(new Action<BuildOperationQueue<JUnitXmlReportFileGenerator>>() {

 * e.g. from internal language-specific plugins like Java.
 */
public interface OperationResultPostProcessor {
    void started(BuildOperationDescriptor buildOperation, OperationStartEvent startEvent);

    void finished(BuildOperationDescriptor buildOperation, OperationFinishEvent finishEvent);

    AbstractTaskResult process(AbstractTaskResult taskResult, TaskInternal taskInternal);

        return new Logger()
    }

    ProgressLogger newOperation(Class<?> loggerCategory, BuildOperationDescriptor buildOperationDescriptor) {
        return new Logger()
    }

    ProgressLogger newOperation(Class<?> loggerClass, ProgressLogger parent) {
        return new Logger()
    }

    static class Logger implements ProgressLogger {
        String description

        String getDescription() { description }

                context.setResult(RESULT);
                return state;
            }

            @Override
            public BuildOperationDescriptor.Builder description() {
                return BuildOperationDescriptor.displayName(gradle.contextualize("Evaluate settings")).
                    progressDisplayName("Evaluating settings").
                    details(new Details() {