Bug Report: If a custom item give player Material.AIR, the InventoryClickEvent will throw a null #1103
Description
Describe the bug
If you setup a custom item which give air to the player, buy message will not display, and buy sound will not play. It will give you these logs:
[15:08:32 ERROR]: Could not pass event InventoryClickEvent to BedWars1058 v25.2
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:517) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:502) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1657) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:31) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:9) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[?:?]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:774) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at java.lang.Thread.run(Thread.java:1583) [?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.server.v1_8_R3.ItemStack.getItem()" because the return value of "org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack.asNMSCopy(org.bukkit.inventory.ItemStack)" is null
at com.andrei1058.bedwars.support.version.v1_8_R3.v1_8_R3.isSword(v1_8_R3.java:153) ~[?:?]
at com.andrei1058.bedwars.shop.main.BuyItem.give(BuyItem.java:251) ~[?:?]
at com.andrei1058.bedwars.shop.main.CategoryContent.giveItems(CategoryContent.java:216) ~[?:?]
at com.andrei1058.bedwars.shop.main.CategoryContent.execute(CategoryContent.java:192) ~[?:?]
at com.andrei1058.bedwars.shop.listeners.InventoryListener.onInventoryClick(InventoryListener.java:109) ~[?:?]
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:580) ~[?:?]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[patched_1.8.8.jar:git-PaperSpigot-445]
... 16 more
To Reproduce
Steps to reproduce the behavior:
Expected behavior
Should not throw an error, and buy message should be display, and buy sound should be play.
Screenshots
Not neccessary
System (please complete the following information):
- OS: Windows Server
- Server software paper
- Server Version 1.8.8
- Plugin Version 25.2
Additional context
You might ask "Why you try to give player air when they buy?", here's the reason:
bedwarsAPI didn't give me ability to set the material of item which player just got. I'm trying to make an special item which is non-physically exist, so the only way to do this is to give nothing to player. That's why i need to give air to the player.