s1.add(new Task("Task 1", new SimpleTimePeriod(new Date(),
                new Date())));
        s1.add(new Task("Task 2", new SimpleTimePeriod(new Date(),
                new Date())));
        s1.add(new Task("Task 3", new SimpleTimePeriod(new Date(),
                new Date())));

        TaskSeriesCollection tsc = new TaskSeriesCollection();