I have this code in the generic item class:

 

 

ItemStack washingResult;

 

    public void setWashingResult(ItemStack result)

    {

        washingResult = result;

    }

 

    @Override

    public boolean onEntityItemUpdate(EntityItem entityItem)

    {

        if(entityItem.worldObj.getBlockState(new BlockPos((int)Math.floor(entityItem.posX), (int)Math.floor(entityItem.posY), (int)Math.floor(entityItem.posZ))).getBlock() == Blocks.water && washingResult!=null)

        {

            entityItem.setEntityItemStack(washingResult);

        }

        return false;

    }

 

 

 

And in the item's class I call this in constructor:

    this.setWashingResult(new ItemStack(ModItems.wetCoal, 1, 0));

 

The item obtained with /give command or from creative inventory works just fine and has no problems being dropped. However, when I drop an item into the water, game crashes.

 

Crash log:

 

 

19:33:22] [server thread/INFO] [FML]: Applying holder lookups

[19:33:22] [server thread/INFO] [FML]: Holder lookups applied

[19:33:22] [Client thread/FATAL]: Reported exception thrown!

net.minecraft.util.ReportedException: Rendering entity in world

at net.minecraft.client.renderer.entity.RenderManager.doRenderEntity(RenderManager.java:425) ~[RenderManager.class:?]

at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:334) ~[RenderManager.class:?]

at net.minecraft.client.renderer.entity.RenderManager.renderEntitySimple(RenderManager.java:301) ~[RenderManager.class:?]

at net.minecraft.client.renderer.RenderGlobal.renderEntities(RenderGlobal.java:657) ~[RenderGlobal.class:?]

at net.minecraft.client.renderer.EntityRenderer.renderWorldPass(EntityRenderer.java:1350) ~[EntityRenderer.class:?]

at net.minecraft.client.renderer.EntityRenderer.renderWorld(EntityRenderer.java:1263) ~[EntityRenderer.class:?]

at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1088) ~[EntityRenderer.class:?]

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1114) ~[Minecraft.class:?]

at net.minecraft.client.Minecraft.run(Minecraft.java:376) [Minecraft.class:?]

at net.minecraft.client.main.Main.main(Main.java:117) [Main.class:?]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_45]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_45]

at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]

at GradleStart.main(Unknown Source) [start/:?]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_45]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_45]

at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140) [idea_rt.jar:?]

Caused by: java.lang.NullPointerException

at net.minecraft.item.ItemStack.getMetadata(ItemStack.java:280) ~[itemStack.class:?]

at net.minecraft.client.renderer.ItemModelMesher.getMetadata(ItemModelMesher.java:70) ~[itemModelMesher.class:?]

at net.minecraft.client.renderer.ItemModelMesher.getItemModel(ItemModelMesher.java:43) ~[itemModelMesher.class:?]

at net.minecraft.client.renderer.entity.RenderEntityItem.func_177075_a(RenderEntityItem.java:109) ~[RenderEntityItem.class:?]

at net.minecraft.client.renderer.entity.RenderEntityItem.doRender(RenderEntityItem.java:179) ~[RenderEntityItem.class:?]

at net.minecraft.client.renderer.entity.RenderManager.doRenderEntity(RenderManager.java:377) ~[RenderManager.class:?]

... 22 more

[19:33:22] [Client thread/INFO] [sTDOUT]: [net.minecraft.init.Bootstrap:printToSYSOUT:663]: ---- Minecraft Crash Report ----

// I blame Dinnerbone.

 

Time: 03.06.15 19:33

Description: Rendering entity in world

 

java.lang.NullPointerException: Rendering entity in world

at net.minecraft.item.ItemStack.getMetadata(ItemStack.java:280)

at net.minecraft.client.renderer.ItemModelMesher.getMetadata(ItemModelMesher.java:70)

at net.minecraft.client.renderer.ItemModelMesher.getItemModel(ItemModelMesher.java:43)

at net.minecraft.client.renderer.entity.RenderEntityItem.func_177075_a(RenderEntityItem.java:109)

at net.minecraft.client.renderer.entity.RenderEntityItem.doRender(RenderEntityItem.java:179)

at net.minecraft.client.renderer.entity.RenderManager.doRenderEntity(RenderManager.java:377)

at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:334)

at net.minecraft.client.renderer.entity.RenderManager.renderEntitySimple(RenderManager.java:301)

at net.minecraft.client.renderer.RenderGlobal.renderEntities(RenderGlobal.java:657)

at net.minecraft.client.renderer.EntityRenderer.renderWorldPass(EntityRenderer.java:1350)

at net.minecraft.client.renderer.EntityRenderer.renderWorld(EntityRenderer.java:1263)

at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1088)

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1114)

at net.minecraft.client.Minecraft.run(Minecraft.java:376)

at net.minecraft.client.main.Main.main(Main.java:117)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source)

at GradleStart.main(Unknown Source)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

 

 

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

---------------------------------------------------------------------------------------

 

-- Head --

Stacktrace:

at net.minecraft.item.ItemStack.getMetadata(ItemStack.java:280)

at net.minecraft.client.renderer.ItemModelMesher.getMetadata(ItemModelMesher.java:70)

at net.minecraft.client.renderer.ItemModelMesher.getItemModel(ItemModelMesher.java:43)

at net.minecraft.client.renderer.entity.RenderEntityItem.func_177075_a(RenderEntityItem.java:109)

at net.minecraft.client.renderer.entity.RenderEntityItem.doRender(RenderEntityItem.java:179)

 

-- Entity being rendered --

Details:

Entity Type: Item (net.minecraft.entity.item.EntityItem)

Entity ID: 15241

Entity Name: ~~ERROR~~ NullPointerException: null

Entity's Exact location: -213,33, 55,43, -1238,48

Entity's Block location: -214,00,55,00,-1239,00 - World: (-214,55,-1239), Chunk: (at 10,3,9 in -14,-78; contains blocks -224,0,-1248 to -209,255,-1233), Region: (-1,-3; contains chunks -32,-96 to -1,-65, blocks -512,0,-1536 to -1,255,-1025)

Entity's Momentum: 0,08, -0,39, -0,08

Entity's Rider: ~~ERROR~~ NullPointerException: null

Entity's Vehicle: ~~ERROR~~ NullPointerException: null

 

-- Renderer details --

Details:

Assigned renderer: net.minecraft.client.renderer.entity.RenderEntityItem@73379057

Location: 0,42,-0,22,-0,25 - World: (0,-1,-1), Chunk: (at 0,-1,15 in 0,-1; contains blocks 0,0,-16 to 15,255,-1), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)

Rotation: 116.71875

Delta: 0.11974108

Stacktrace:

at net.minecraft.client.renderer.entity.RenderManager.doRenderEntity(RenderManager.java:377)

at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:334)

at net.minecraft.client.renderer.entity.RenderManager.renderEntitySimple(RenderManager.java:301)

at net.minecraft.client.renderer.RenderGlobal.renderEntities(RenderGlobal.java:657)

at net.minecraft.client.renderer.EntityRenderer.renderWorldPass(EntityRenderer.java:1350)

at net.minecraft.client.renderer.EntityRenderer.renderWorld(EntityRenderer.java:1263)

 

-- Affected level --

Details:

Level name: MpServer

All players: 1 total; [EntityPlayerSP['zlotnleo'/74, l='MpServer', x=-213,82, y=56,00, z=-1238,16]]

Chunk stats: MultiplayerChunkCache: 622, 622

Level seed: 0

Level generator: ID 01 - flat, ver 0. Features enabled: false

Level generator options:

Level spawn location: -208,00,4,00,-1217,00 - World: (-208,4,-1217), Chunk: (at 0,0,15 in -13,-77; contains blocks -208,0,-1232 to -193,255,-1217), Region: (-1,-3; contains chunks -32,-96 to -1,-65, blocks -512,0,-1536 to -1,255,-1025)

Level time: 110294 game time, 6000 day time

Level dimension: 0

Level storage version: 0x00000 - Unknown?

Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)

Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false

Forced entities: ~~ERROR~~ NullPointerException: null

Retry entities: 0 total; []

Server brand: fml,forge

Server type: Integrated singleplayer server

Stacktrace:

at net.minecraft.client.multiplayer.WorldClient.addWorldInfoToCrashReport(WorldClient.java:392)

at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2613)

at net.minecraft.client.Minecraft.run(Minecraft.java:398)

at net.minecraft.client.main.Main.main(Main.java:117)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source)

at GradleStart.main(Unknown Source)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

 

-- System Details --

Details:

Minecraft Version: 1.8

Operating System: Mac OS X (x86_64) version 10.10.3

Java Version: 1.8.0_45, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 618402520 bytes (589 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)

JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v9.10 FML v8.99.18.1419 Minecraft Forge 11.14.1.1419 4 mods loaded, 4 mods active

mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

FML{8.99.18.1419} [Forge Mod Loader] (forgeSrc-1.8-11.14.1.1419.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Forge{11.14.1.1419} [Minecraft Forge] (forgeSrc-1.8-11.14.1.1419.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

coalage{1.8-1.0} [Coal Age] (CoalAge) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Loaded coremods (and transformers):

Launched Version: 1.8

LWJGL: 2.9.2

OpenGL: NVIDIA GeForce GT 750M OpenGL Engine GL version 2.1 NVIDIA-10.2.7 310.41.25f01, NVIDIA Corporation

GL Caps: Using GL 1.3 multitexturing.

Using GL 1.3 texture combiners.

Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.

Shaders are available because OpenGL 2.1 is supported.

VBOs are available because OpenGL 1.5 is supported.

 

Using VBOs: No

Is Modded: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Packs: []

Current Language: English (US)

Profiler Position: N/A (disabled)

[19:33:22] [Client thread/INFO] [sTDOUT]: [net.minecraft.init.Bootstrap:printToSYSOUT:663]: #@!@# Game crashed! Crash report saved to: #@!@# /Users/zlotnleo/Documents/IdeaProjects/minecraft/CoalAge/eclipse/./crash-reports/crash-2015-06-03_19.33.22-client.txt

AL lib: (EE) alc_cleanup: 1 device not closed

 

Process finished with exit code 255

 

[/spoiler/

Just had to change places between initialization of wet items and the dry ones. Got it all working, thank you