[BUG] Furnace Backpack in Combined Backpack does nothing (V2022.1.8)

[DGAlbipe]

Furnace Backpack in Combined Backpack does nothing
I was using a Combined Backpack that is combined with a Netherite Chestplate, The Furnace GUI doesn't pop up and after clicking the Furnance Backpack it doesn't allow you to use backpacks anymore (unless you restart the server)
To Reproduce
Steps to reproduce the behavior:

1. Make a Combined Backpack
2. Combine it with a Netherite Chestplate
3. Make a Furnace Backpack
4. Combine the Combined Backpack with Furnace Backpack
5. Click on the Furnace inside the Combined Backpack

Expected behavior
Furnace GUI and I can smelt items

Screenshots
None

Version info
Spigot 1.20 (3797)

Additional context
None

[elricers]

The same happened here i had to reset the server to get it to work

[DmitryASmith]

What version are you testing on?
Today specially rechecked on server version 1.20.1 BUG is reproduced.
Also found another one: After using the key on backpacks with 27 slots (LINKED or SMALL), you can not remove or put items from them before performing a relogon.

Just in case, I once again attach the log of the unmodified plugin when using the key on the type "FURNANS"...
[ ERROR]: Could not pass event PlayerInteractEvent to BackpacksRemastered v2022.1.8 java.lang.NullPointerException: Cannot invoke "java.lang.reflect.Method.invoke(Object, Object[])" because the return value of "com.divisionind.bprm.nms.reflect.NMSMethod.getMethod()" is null at com.divisionind.bprm.nms.reflect.NMS.getWorldServer(NMS.java:107) ~[BackpacksRemastered-2022.1.8.jar:?] at com.divisionind.bprm.backpacks.BPFurnace.openBackpack(BPFurnace.java:82) ~[BackpacksRemastered-2022.1.8.jar:?] at com.divisionind.bprm.events.BackpackOpenCloseEvent.onBackpackOpen(BackpackOpenCloseEvent.java:65) ~[BackpacksRemastered-2022.1.8.jar:?] at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor326.execute(Unknown Source) ~[?:?] at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?] at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:81) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:git-Paper-84] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?] at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[paper-1.20.1.jar:git-Paper-84] at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[paper-1.20.1.jar:git-Paper-84] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:615) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?] at org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:566) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.level.ServerPlayerGameMode.useItemOn(ServerPlayerGameMode.java:537) ~[?:?] at net.minecraft.server.network.ServerGamePacketListenerImpl.handleUseItemOn(ServerGamePacketListenerImpl.java:1960) ~[?:?] at net.minecraft.network.protocol.game.ServerboundUseItemOnPacket.handle(ServerboundUseItemOnPacket.java:37) ~[?:?] at net.minecraft.network.protocol.game.ServerboundUseItemOnPacket.a(ServerboundUseItemOnPacket.java:9) ~[?:?] at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:51) ~[?:?] at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?] at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?] at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1339) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?] at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1316) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1309) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?] at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1287) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1175) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.1.jar:git-Paper-84] at java.lang.Thread.run(Thread.java:833) ~[?:?] [22:10:13 ERROR]: Could not pass event PlayerInteractEvent to BackpacksRemastered v2022.1.8 java.lang.NullPointerException: Cannot invoke "java.lang.reflect.Method.invoke(Object, Object[])" because the return value of "com.divisionind.bprm.nms.reflect.NMSMethod.getMethod()" is null at com.divisionind.bprm.nms.reflect.NMS.getWorldServer(NMS.java:107) ~[BackpacksRemastered-2022.1.8.jar:?] at com.divisionind.bprm.backpacks.BPFurnace.openBackpack(BPFurnace.java:82) ~[BackpacksRemastered-2022.1.8.jar:?] at com.divisionind.bprm.events.BackpackOpenCloseEvent.onBackpackOpen(BackpackOpenCloseEvent.java:65) ~[BackpacksRemastered-2022.1.8.jar:?] at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor326.execute(Unknown Source) ~[?:?] at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?] at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:81) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:git-Paper-84] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?] at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[paper-1.20.1.jar:git-Paper-84] at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[paper-1.20.1.jar:git-Paper-84] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:615) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?] at org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:566) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.level.ServerPlayerGameMode.useItemOn(ServerPlayerGameMode.java:537) ~[?:?] at net.minecraft.server.network.ServerGamePacketListenerImpl.handleUseItemOn(ServerGamePacketListenerImpl.java:1960) ~[?:?] at net.minecraft.network.protocol.game.ServerboundUseItemOnPacket.handle(ServerboundUseItemOnPacket.java:37) ~[?:?] at net.minecraft.network.protocol.game.ServerboundUseItemOnPacket.a(ServerboundUseItemOnPacket.java:9) ~[?:?] at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:51) ~[?:?] at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?] at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?] at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1339) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?] at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1316) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1309) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?] at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1287) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1175) ~[paper-1.20.1.jar:git-Paper-84] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.1.jar:git-Paper-84] at java.lang.Thread.run(Thread.java:833) ~[?:?]

I hope that the authors will take care of this soon)

UPD: I rebuilt the plugin (slightly modified NMSVersions) with BETTA242 The error remained. But I still haven't figured out the calls in the NMS classes that have changed since version 1193 (The error stretches from there).

UPD2:It seems to me that the methods need to be overridden in NMS.java and NMSMethod.java. Who is good at JAVA, take a look when you have free time.

[elricers]

the version I was testing was
BackpacksRemastered-2022.1.8.jar

[DmitryASmith]

the version I was testing was BackpacksRemastered-2022.1.8.jar

I think we're talking about different things. I wrote above that I'm testing plugin version 2022.1.8 on server 1.20.1. You probably missed it.