Wait until database is correctly started

gistfile1.java

/* Using a mysql inside docker for executing test, I need to wait for MySQL is completly started before running test */
Awaitility.await().atMost(5, TimeUnit.SECONDS).pollInterval(1, TimeUnit.SECONDS).until(new Callable<Boolean>() {
    @Override
    public Boolean call() throws Exception {
        try (Connection conn = ds.getConnection()) {
            return true;
        } catch (Exception e) {
            System.out.println(e.getClass() + ": " + e.getLocalizedMessage());
            return false;
        }
    }
});