Getting type of item stack returns generic type (Oak Log) instead of specific type (Birch Log)

I am making a program that creates individual item stacks if the item stack amount is above 64 because item stacks above 64 appear invisible in game. When I get the type of the item stack from an array of item stacks, it returns the generic item type such as oak log when I want it to return birch log. The program works when the item stack amount is below 64 when I directly use the item stack element in the array to drop the item in the world.

How do I make it return the specific block type?

Code:

public class ItemsMulitply implements Listener{
   
    public static double dropAmount = 1;
   
    @EventHandler
    public void onBlockBreak(BlockBreakEvent event) {
        Player player = event.getPlayer();
        if (player.getGameMode() == GameMode.SURVIVAL) {
            Block block = event.getBlock();
            Location loc = block.getLocation();
            event.setDropItems(false);
            Collection<ItemStack> dropsCollection = block.getDrops();
            ItemStack[] dropsArray = dropsCollection.toArray(new ItemStack[0]);
            for (int i = 0; i < dropsArray.length; i++) {
                if ((int)(dropAmount) <= 64) {
                    dropsArray[i].setAmount((int)dropAmount);
                    Main.world.dropItemNaturally(loc, dropsArray[i]);
                }
                else {
                    for (int j = 0; j < (int)(dropAmount)/64; j++) {
                        ItemStack items = new ItemStack(dropsArray[i].getType(), 64);
                        Main.world.dropItemNaturally(loc, items);
                    }
                    if (dropAmount%64 != 0) {
                        ItemStack excessItems = new ItemStack(dropsArray[i].getType(), (int)(dropAmount)%64);
                        Main.world.dropItemNaturally(loc, excessItems);
                    }
                }
            }
            if (dropsArray.length != 0) {
                dropAmount*=2;
                player.sendMessage("Drops have been multiplied!");
            }
        }
    }
}

 

@Archyx
You need to check the data value.

See ItemStack#getData()

EDIT: This may have been replaced by getDurability() but I cannot be 100% certain without trying it.

 

@CraftCreeper6 I added items.setData(dropsArray.getData()); but it still dropped oak logs. I could not figure out how to convert Material Data to Material or itemstack without a depricated method.

 

@Archyx
It's fine to use a deprecated method, it's still there for a reason. I'm not sure of another way to do it (though I'm sure there's another one). So if anyone on here knows the updated method, feel free to jump in.

 

Turn out I didn't need to get the type of the item stack array, I just set the new item stack to the array element and set the amount to 64

Code:

ItemStack items = dropsArray[i];
items.setAmount(64);