My game crash when i run my mincraft mod

[uncut prism]

public class ArnorMod implements ModInitializer {
public static final String MODID = "armorermod";

@Override
public void onInitialize() {

UseEntityCallback.EVENT.register(this::onPlayerInteract);

}

private ActionResult onPlayerInteract(PlayerEntity player, World world, Hand hand, Entity entity, EntityHitResult hitResult) {
if (entity instanceof VillagerEntity) {
VillagerEntity villager = (VillagerEntity) entity;
if (villager.getVillagerData().getProfession() == VillagerProfession.ARMORER) {

    rotatePlayerCamera(player);

    
    boolean hasMoreTrades;
    do {
      hasMoreTrades = false;
      for (TradeOffer trade : villager.getOffers()) {
        ItemStack tradeItem = trade.getSellItem();

        
        if (EnchantmentHelper.hasEnchantments(tradeItem) && trade.getDisplayedFirstBuyItem().getCount() == 1) {
         
          if (player.getInventory().count(Items.EMERALD) >= 1) {
            
            player.getInventory().removeStack(player.getInventory().getSlotWithStack(new ItemStack(Items.EMERALD)), 1);
            player.giveItemStack(tradeItem.copy());
          
            player.dropItem(tradeItem, false);

        
            hasMoreTrades = true;
          }
        }
      }
    } while (hasMoreTrades); 
    
    rotatePlayerCamera(player);
  }
}
return ActionResult.PASS;

}

private void rotatePlayerCamera(PlayerEntity player) {
player.setYaw(player.getYaw() + 180); // چرخش 180 درجه
player.setHeadYaw(player.getHeadYaw() + 180); // چرخش سر بازیکن
}
}

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[acoustic saffron]

Please format your code to make it more readable.
For java, it should look like this:
```​​​`​java
public void foo() {

}
​​​`​```

[uncut prism]

Its my mincraft mod code
It suppose to drop all the diamond arrmor that villiger sell for 1 emerald and rotate player 180 degrees when right click on a armorer villiger
And also rotate again when i close the traid
But when i right click on a villager my game crash

[rich swan]

 } while (hasMoreTrades); 

        rotatePlayerCamera(player);
      }
    }
    return ActionResult.PASS;
  }

  private void rotatePlayerCamera(PlayerEntity player) {
    player.setYaw(player.getYaw() + 180); // چرخش 180 درجه
    player.setHeadYaw(player.getHeadYaw() + 180); // چرخش سر بازیکن
  }

are you sure this loop isnt crashing the game

[uncut prism]

Maybe how to fix it

[rich swan]

   do {
          Thread.sleep(1000);
          hasMoreTrades = false;
          for (TradeOffer trade : villager.getOffers()) {

i added thread sleep 1000

add it too

and try it

if you dont crash then that means the problem is with the loop

if you crash anyway the problem is somewhere else

[uncut prism]

I'll try it

[uncut prism]

It didn't worked