@EventHandler
public void onEntityDeath(EntityDeathEvent event) {
    if(!(event.getEntity() instanceof Monster)) return;
    LootTable lootTable = ((Monster) event.getEntity()).getLootTable();
    if(lootTable != null) {
        event.getDrops().clear();
        LootContext lootContext = new LootContext.Builder(event.getEntity().getLocation())
                .killer(event.getEntity().getKiller())
                .lootedEntity(event.getEntity())
                .lootingModifier(100)
                .build();
        event.getDrops().addAll(lootTable.populateLoot(ThreadLocalRandom.current(), lootContext));
    }
}