package kiwi.me.randomplugin; import org.bukkit.Material; import org.bukkit.entity.Player; import org.bukkit.event.EventHandler; import org.bukkit.event.Listener; import org.bukkit.event.player.PlayerJoinEvent; public class playerJoinEvent implements Listener { @EventHandler public void onPlayerJoin(PlayerJoinEvent event) { Player player = event.getPlayer(); if(player.getInventory().getItemInMainHand().getType() == Material.COBBLESTONE) { //Its should run "daRunnare.java" in RandomPlugin/src/main/java/kiwi/me/randomplugin/daRunnare } } }