Поиск ближайших Entity

Версия Minecraft
1.16.5
API
Forge
76
3
5
Могу предположить, что краш из-за EntityPredicate, но я понимаю, что это и как им пользоваться, облазил всё и вся, но инфы нету.
Java:
public class TestMessage extends Item {

    private List<? extends LivingEntity> MobEntity;

    public TestMessage() {
        super(new Properties().tab(ModGroup.itemGroup));
    }

    @Nonnull
    @Override
    public ActionResult<ItemStack> use(@Nonnull World worldIn, @Nonnull PlayerEntity playerIn, @Nonnull Hand handIn) {
        worldIn.getNearestEntity(MobEntity, new EntityPredicate().range(5D), playerIn, 5D, 5D, 5D);
        for (int i = 0; i < MobEntity.size(); i++) {
            MobEntity.get(i).getEntity();
            StalinRpg.LOGGER.info("Entity: " + MobEntity.get(i).getEntity());
        }

        return super.use(worldIn, playerIn, handIn);
    }
}
 
Краш-лог
---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 22.12.22 13:29
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at net.minecraft.world.IEntityReader.getNearestEntity(IEntityReader.java:149) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
at net.stalin.stalinrpg.network.networking.TestMessage.use(TestMessage.java:37) ~[main/:?] {re:classloading}
at net.minecraft.item.ItemStack.use(ItemStack.java:216) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,xf:fml:forge:filled_map.4,xf:fml:forge:itemstack}
at net.minecraft.client.multiplayer.PlayerController.useItem(PlayerController.java:328) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.startUseItem(Minecraft.java:1391) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.handleKeybinds(Minecraft.java:1647) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.tick(Minecraft.java:1462) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.runTick(Minecraft.java:954) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.run(Minecraft.java:607) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_352] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_352] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_352] {}
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_352] {}
at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {}
at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
at net.minecraft.world.IEntityReader.getNearestEntity(IEntityReader.java:149) ~[forge:?] {re:classloading}
at net.stalin.stalinrpg.network.networking.TestMessage.use(TestMessage.java:37) ~[?:?] {re:classloading}
at net.minecraft.item.ItemStack.use(ItemStack.java:216) ~[forge:?] {re:classloading,xf:fml:forge:filled_map.4,xf:fml:forge:itemstack}
at net.minecraft.client.multiplayer.PlayerController.useItem(PlayerController.java:328) ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.startUseItem(Minecraft.java:1391) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.handleKeybinds(Minecraft.java:1647) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
-- Affected level --
Details:
All players: 1 total; [ClientPlayerEntity['Dev'/142, l='ClientLevel', x=94.07, y=4.00, z=-194.82]]
Chunk stats: Client Chunk Cache: 529, 322
Level dimension: minecraft:overworld
Level spawn location: World: (112,4,-144), Chunk: (at 0,0,0 in 7,-9; contains blocks 112,0,-144 to 127,255,-129), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Level time: 657856 game time, 2775 day time
Server brand: forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.world.ClientWorld.fillReportDetails(ClientWorld.java:447) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.fillReport(Minecraft.java:2031) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.run(Minecraft.java:628) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_352] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_352] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_352] {}
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_352] {}
at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {}
at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}


-- System Details --
Details:
Minecraft Version: 1.16.5
Minecraft Version ID: 1.16.5
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_352, Amazon.com Inc.
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Amazon.com Inc.
Memory: 344771096 bytes (328 MB) / 1019740160 bytes (972 MB) up to 1895825408 bytes (1808 MB)
CPUs: 4
JVM Flags: 2 total; -XX:+IgnoreUnrecognizedVMOptions -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
ModLauncher: 8.1.3+8.1.3+main-8.1.x.c94d18ec
ModLauncher launch target: fmluserdevclient
ModLauncher naming: mcp
ModLauncher services:
/mixin-0.8.4.jar mixin PLUGINSERVICE
/eventbus-4.0.0.jar eventbus PLUGINSERVICE
/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar object_holder_definalize PLUGINSERVICE
/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE
/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar capability_inject_definalize PLUGINSERVICE
/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar runtimedistcleaner PLUGINSERVICE
/mixin-0.8.4.jar mixin TRANSFORMATIONSERVICE
/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar fml TRANSFORMATIONSERVICE
FML: 36.2
Forge: net.minecraftforge:36.2.34
FML Language Providers:
[email protected]
minecraft@1
Mod List:
client-extra.jar |Minecraft |minecraft |1.16.5 |DONE |Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
main |RPG System |stalinrpg |NONE |DONE |Manifest: NOSIGNATURE
forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp|Forge |forge |36.2.34 |DONE |Manifest: NOSIGNATURE
Crash Report UUID: 081ab985-b8e7-4942-a006-1a7971b5e1a5
Launched Version: MOD_DEV
Backend library: LWJGL version 3.2.2 build 10
Backend API: NVIDIA GeForce GTX 970/PCIe/SSE2 GL version 4.6.0 NVIDIA 526.86, NVIDIA Corporation
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'forge'
Type: Client (map_client.txt)
Graphics mode: fast
Resource Packs:
Current Language: English (US)
CPU: 4x Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
Краш-лог:
---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 22.12.22 13:29
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at net.minecraft.world.IEntityReader.getNearestEntity(IEntityReader.java:149) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.stalin.stalinrpg.network.networking.TestMessage.use(TestMessage.java:37) ~[main/:?] {re:classloading}
	at net.minecraft.item.ItemStack.use(ItemStack.java:216) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,xf:fml:forge:filled_map.4,xf:fml:forge:itemstack}
	at net.minecraft.client.multiplayer.PlayerController.useItem(PlayerController.java:328) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.startUseItem(Minecraft.java:1391) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.handleKeybinds(Minecraft.java:1647) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.tick(Minecraft.java:1462) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:954) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:607) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_352] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_352] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_352] {}
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_352] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at net.minecraft.world.IEntityReader.getNearestEntity(IEntityReader.java:149) ~[forge:?] {re:classloading}
	at net.stalin.stalinrpg.network.networking.TestMessage.use(TestMessage.java:37) ~[?:?] {re:classloading}
	at net.minecraft.item.ItemStack.use(ItemStack.java:216) ~[forge:?] {re:classloading,xf:fml:forge:filled_map.4,xf:fml:forge:itemstack}
	at net.minecraft.client.multiplayer.PlayerController.useItem(PlayerController.java:328) ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.startUseItem(Minecraft.java:1391) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.handleKeybinds(Minecraft.java:1647) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
-- Affected level --
Details:
	All players: 1 total; [ClientPlayerEntity['Dev'/142, l='ClientLevel', x=94.07, y=4.00, z=-194.82]]
	Chunk stats: Client Chunk Cache: 529, 322
	Level dimension: minecraft:overworld
	Level spawn location: World: (112,4,-144), Chunk: (at 0,0,0 in 7,-9; contains blocks 112,0,-144 to 127,255,-129), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Level time: 657856 game time, 2775 day time
	Server brand: forge
	Server type: Integrated singleplayer server
Stacktrace:
	at net.minecraft.client.world.ClientWorld.fillReportDetails(ClientWorld.java:447) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.fillReport(Minecraft.java:2031) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:628) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_352] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_352] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_352] {}
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_352] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp.jar:?] {}


-- System Details --
Details:
	Minecraft Version: 1.16.5
	Minecraft Version ID: 1.16.5
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_352, Amazon.com Inc.
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Amazon.com Inc.
	Memory: 344771096 bytes (328 MB) / 1019740160 bytes (972 MB) up to 1895825408 bytes (1808 MB)
	CPUs: 4
	JVM Flags: 2 total; -XX:+IgnoreUnrecognizedVMOptions -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 8.1.3+8.1.3+main-8.1.x.c94d18ec
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/mixin-0.8.4.jar mixin PLUGINSERVICE 
		/eventbus-4.0.0.jar eventbus PLUGINSERVICE 
		/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE 
		/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/mixin-0.8.4.jar mixin TRANSFORMATIONSERVICE 
		/forge-1.16.5-36.2.34_mapped_official_1.16.5-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 36.2
	Forge: net.minecraftforge:36.2.34
	FML Language Providers: 
		[email protected]
		minecraft@1
	Mod List: 
		client-extra.jar                                  |Minecraft                     |minecraft                     |1.16.5              |DONE      |Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
		main                                              |RPG System                    |stalinrpg                     |NONE                |DONE      |Manifest: NOSIGNATURE
		forge-1.16.5-36.2.34_mapped_official_1.16.5-recomp|Forge                         |forge                         |36.2.34             |DONE      |Manifest: NOSIGNATURE
	Crash Report UUID: 081ab985-b8e7-4942-a006-1a7971b5e1a5
	Launched Version: MOD_DEV
	Backend library: LWJGL version 3.2.2 build 10
	Backend API: NVIDIA GeForce GTX 970/PCIe/SSE2 GL version 4.6.0 NVIDIA 526.86, NVIDIA Corporation
	GL Caps: Using framebuffer using OpenGL 3.0
	Using VBOs: Yes
	Is Modded: Definitely; Client brand changed to 'forge'
	Type: Client (map_client.txt)
	Graphics mode: fast
	Resource Packs: 
	Current Language: English (US)
	CPU: 4x Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
Последнее редактирование:
Решение
С самого начала я пытался сделать что-то не то, но не много поэкспериментировав нашёл правильный ответ.

Java:
double x = playerIn.getX();
double y = playerIn.getY();
double z = playerIn.getZ();
double radius = 10D;

List<Entity> mobs = worldIn.getEntities(playerIn, new AxisAlignedBB(x - radius,y - radius,z - radius,x + radius,y + radius,z + radius));
586
32
136
Что-то вроде такого. Писал на коленке:
public class TestMessage extends Item {

    public TestMessage() {
        super(new Properties().tab(ModGroup.itemGroup));
    }

    @Nonnull
    @Override
    public ActionResult<ItemStack> use(@Nonnull World worldIn, @Nonnull PlayerEntity playerIn, @Nonnull Hand handIn) {
        List<LivingEntity> mobEntity = new ArrayList<>();
        worldIn.getNearestEntity(mobEntity, new EntityPredicate().range(5D), playerIn, 5D, 5D, 5D);
        for (int i = 0; i < mobEntity.size(); i++) {
            mobEntity.get(i).getEntity();
            StalinRpg.LOGGER.info("Entity: " + mobEntity.get(i).getEntity());
        }

        return super.use(worldIn, playerIn, handIn);
    }
}
 
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что это и как им пользоваться, облазил всё и вся
Это NullPointerException. Это значит, что ты пытаешься сделать, нечто похожее на null.callMethod()
Я уже говорил тебе, научись использовать отладчик, он тебя сразу пнет, какой обьект у тебя null
(в твоем случае MobEntity == null, инициализируй его)

советую не писать названия переменных с большой буквы, иначе могут прийти люди в черном и отвесить леща
 
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С самого начала я пытался сделать что-то не то, но не много поэкспериментировав нашёл правильный ответ.

Java:
double x = playerIn.getX();
double y = playerIn.getY();
double z = playerIn.getZ();
double radius = 10D;

List<Entity> mobs = worldIn.getEntities(playerIn, new AxisAlignedBB(x - radius,y - radius,z - radius,x + radius,y + radius,z + radius));
 
Сверху