Same Item ID drop for 1 Mob

[Modify]

Hello ~

I've been trying to get 1 mob to drop multiple items with the same ID.

Example:
Mob = Snail
Drops = Snail Shell x4

In the SQL Table:
id | mobid | itemid | chance
1 | 100100 | 4000019 | 1
2 | 100100 | 4000019 | 1
3 | 100100 | 4000019 | 1
4 | 100100 | 4000019 | 1

The only problem is it always only drops 1 Snail Shell instead of the intended 4.
I'm assuming it's not the "chance" column problem since a Snail Shell drops after every kill.
It seems to drop one of every item, but never a repeated ID.

EDIT: I have tried different items, but it only drops the first item on the list and ignores the other ones

Anyone have any ideas on how to make it drop multiple items with the same ID?

Thanks in advance!

 

[Utsukushi]

try changing your chance to 1,000,000 instead of 1

 

[Modify]

I'm going to respect this suggestion and just go for it, and as expected, nothing appears from drops now

Thank you for the suggestion though.


EDIT: Fixed! Just used a alternative mob that supports multiple drops. Thank you!

 

[Yuuroido]

Perhaps, there's a check that prevents from dropping the same item.
something like

List<Integer> drops = new ArrayList<>();
//bla bla
if (!drops.contains(itemId)) {
    drops.add(itemId);
}

or
Set<Integer> drops = new HashSet<>();
//bla bla
drops.add(itemId);

or
Map<Integer, Object> drops = new HashMap<>();
//bla bla
drops.put(itemId, XXXXX);