private final CopySpecInternal mainSpec;

    protected AbstractCopyTask() {
        this.rootSpec = createRootSpec();
        rootSpec.addChildSpecListener((path, spec) -> {
            if (getState().getExecuting()) {
                throw new GradleException("You cannot add child specs at execution time. Consider configuring this task during configuration time or using a separate task to do the configuration.");
            }

        task.getState().setExecuting(true);
        try {
            LOGGER.debug("Executing actions for {}.", task);
            actionListener.beforeActions(task);
            executeActions(task, inputChanges);
            return task.getState().getDidWork() ? WorkResult.DID_WORK : WorkResult.DID_NO_WORK;
        } finally {
            task.getState().setExecuting(false);