Unhandled exception

[Vlader97]

BkCommonLib version: 1.20.4-v4-1691

Paper version: 1.20.1 build196

---

Problem or bug:

Sometimes this error appears in the console.

[Server thread/ERROR]: [BKCommonLib] An unhandled exception occurred during the entity push callback java.lang.NullPointerException: Cannot invoke "com.bergerkiller.bukkit.common.internal.hooks.EntityHook.onPush(double, double, double)" because "this.base" is null at com.bergerkiller.bukkit.common.internal.hooks.EntityHook.onPush(EntityHook.java:218) ~[BKCommonLib-1.20.4-v4-1691.jar:?] at com.bergerkiller.bukkit.common.controller.EntityController.onPush(EntityController.java:157) ~[BKCommonLib-1.20.4-v4-1691.jar:?] at com.bergerkiller.bukkit.common.internal.hooks.EntityHook.onPushWithEntity(EntityHook.java:233) ~[BKCommonLib-1.20.4-v4-1691.jar:?] at com.bergerkiller.mountiplex.reflection.util.fast.GeneratedInvoker$mpldefgen6fd74758.invokeVA(Unknown Source) ~[?:?] at com.bergerkiller.mountiplex.reflection.ClassInterceptor$CallbackMethodInterceptor.invokeVA(ClassInterceptor.java:523) ~[BKCommonLib-1.20.4-v4-1691.jar:?] at com.bergerkiller.mountiplex.reflection.util.fast.Invoker.invoke(Invoker.java:45) ~[BKCommonLib-1.20.4-v4-1691.jar:?] at net.minecraft.world.entity.vehicle.EntityMinecartRideable$mpldefgen386b720d.push(Unknown Source) ~[?:?] at net.minecraft.world.entity.Entity.push(Entity.java:2129) ~[paper-1.20.1.jar:git-Paper-196] at net.minecraft.world.entity.vehicle.AbstractMinecart.push(AbstractMinecart.java:901) ~[?:?] at com.bergerkiller.mountiplex.reflection.util.fast.GeneratedInvoker$mpldefgen72b95eb3.invoke(Unknown Source) ~[?:?] at com.bergerkiller.mountiplex.reflection.declarations.Template$Method$Converted.invoke(Template.java:1653) ~[BKCommonLib-1.20.4-v4-1691.jar:?] at com.bergerkiller.generated.net.minecraft.world.entity.EntityHandle$impl.collide(Unknown Source) ~[?:?] at com.bergerkiller.bukkit.common.utils.EntityUtil.doCollision(EntityUtil.java:126) ~[BKCommonLib-1.20.4-v4-1691.jar:?] at com.bergerkiller.bukkit.tc.controller.MinecartMember.onPhysicsPostMove(MinecartMember.java:2474) ~[TrainCarts-1.20.4-v2-1556.jar:?] at com.bergerkiller.bukkit.tc.controller.type.MinecartMemberRideable.onPhysicsPostMove(MinecartMemberRideable.java:111) ~[TrainCarts-1.20.4-v2-1556.jar:?] at com.bergerkiller.bukkit.tc.controller.MinecartGroup.doPhysics_step(MinecartGroup.java:2077) ~[TrainCarts-1.20.4-v2-1556.jar:?] at com.bergerkiller.bukkit.tc.controller.MinecartGroup.doPhysics(MinecartGroup.java:1879) ~[TrainCarts-1.20.4-v2-1556.jar:?] at com.bergerkiller.bukkit.tc.controller.MinecartGroupStore.doFixedTick(MinecartGroupStore.java:40) ~[TrainCarts-1.20.4-v2-1556.jar:?] at com.bergerkiller.bukkit.tc.controller.global.TrainUpdateController$TrainUpdateTask.run(TrainUpdateController.java:225) ~[TrainCarts-1.20.4-v2-1556.jar:?] at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftTask.run(CraftTask.java:101) ~[paper-1.20.1.jar:git-Paper-196] at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:480) ~[paper-1.20.1.jar:git-Paper-196] at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1479) ~[paper-1.20.1.jar:git-Paper-196] at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:446) ~[paper-1.20.1.jar:git-Paper-196] at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1393) ~[paper-1.20.1.jar:git-Paper-196] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1170) ~[paper-1.20.1.jar:git-Paper-196] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:317) ~[paper-1.20.1.jar:git-Paper-196] at java.lang.Thread.run(Thread.java:840) ~[?:?]

I have these plugins on the server if it helps with the solution:
TrainCarts-1.20.4-v2-1556
MyWorlds-1.20.4-v3-268
LightCleaner-1.19.3-v1-149

Expected behaviour:

No error

Steps to reproduce:

It happens randomly

[Bevan0]

Looks like the same as #164.

[bergerkiller]

This should be better now https://ci.mg-dev.eu/job/BKCommonLib/1710/

Beware testing on 1.20.4 and before: Im not 100% sure that version works well. Traincarts version 1.20.6-v1 and tcc same version must be used as the old versions arent compatible with the newer bkcl.