public List<String> getExcludedTaskPaths() {
                return toUniqueSortedTaskPaths(filteredTasks);
            }

            @Override
            public List<PlannedTask> getTaskPlan() {
                @SuppressWarnings("unchecked")
                List<? extends PlannedTask> taskPlan = (List<? extends PlannedTask>) plannedNodeGraph.getNodes(PlannedNodeGraph.DetailLevel.LEVEL1_TASKS);