Merge "Add stub task when matching TaskView is grouped while runningTasks is not grouped" into main

     * Returns true if we should add a stub taskView for the running task id

     */

    protected boolean shouldAddStubTaskView(Task[] runningTasks) {

        TaskView taskView = getTaskViewByTaskId(runningTasks[0].key.id);

        if (taskView == null) {

            // No TaskView found, add a stub task.

            return true;

        }

        if (runningTasks.length > 1) {

            TaskView primaryTaskView = getTaskViewByTaskId(runningTasks[0].key.id);

            TaskView secondaryTaskView = getTaskViewByTaskId(runningTasks[1].key.id);

            int leftTopTaskViewId =

                    (primaryTaskView == null) ? -1 : primaryTaskView.getTaskViewId();

            int rightBottomTaskViewId =

                    (secondaryTaskView == null) ? -1 : secondaryTaskView.getTaskViewId();

            // Add a new stub view if both taskIds don't match any taskViews

            return leftTopTaskViewId != rightBottomTaskViewId || leftTopTaskViewId == -1;

        }

        Task runningTaskInfo = runningTasks[0];

        return runningTaskInfo != null && getTaskViewByTaskId(runningTaskInfo.key.id) == null;

            // Ensure all taskIds matches the TaskView, otherwise add a stub task.

            return Arrays.stream(runningTasks).anyMatch(

                    runningTask -> !taskView.containsTaskId(runningTask.key.id));

        } else {

            // Ensure the TaskView only contains a single taskId, otherwise add a stub task.

            return taskView.containsMultipleTasks();

        }

    }

    /**