pm.deletePersistentAll((Collection) pm.newQuery(classes[i]).execute());
logger.log(BasicLevel.INFO, "All " + classes[i].getName() + " have been removed.");
}
pm.currentTransaction().commit();
pm.evictAll();
pm.currentTransaction().begin();
logger.log(BasicLevel.INFO, "Init departments and employees data.");
for (int i = 0; i < DEPARTMENT_INIT_SIZE; i++) {
str = DatabaseImpl.instance.doAction(