[1.7.10] Strange Crash (Ticking Block Entity)

turbodiesel4598 · September 3, 2015

Hey there,

I am having some issues with one of my Tile Entities, but a particular issue that I don't understand is a crash of the following nature:

"Ticking block entity java.lang.StackOverflowError: Ticking block entity"

I simply don't understand what this type of crash means I'm doing wrong.

If more information is needed, then I will give it, but the situation in which I get the crash is very particular, yet common in the mod.

The following methods are where the crash is occurring, if it is simply a problem with the methods:

public void getBelow(World world, int x, int y, int z) {
		int b = 0;
		for (int yDown = 1; yDown < 128; ++yDown) {
			if (world.getBlock(x, y - 2*yDown, z) == NRBlocks.fusionReactor) {
				b++;
			} else break;
		}
		below = b;
	}

public TileEntityFusionReactor getMain() {
    	if (worldObj.getTileEntity(xCoord, yCoord - 2*below, zCoord) == null || worldObj.getTileEntity(xCoord, yCoord, zCoord) == null) {
    		below = 0;
    		return (TileEntityFusionReactor) worldObj.getTileEntity(xCoord, yCoord, zCoord);
    	}
    	else if (below != 0 && worldObj.getTileEntity(xCoord, yCoord - 2*below, zCoord) != null) {
    		TileEntityFusionReactor main = (TileEntityFusionReactor) worldObj.getTileEntity(xCoord, yCoord - 2*below, zCoord);
    		return main;
    	} else {
    		below = 0;
    		return (TileEntityFusionReactor) worldObj.getTileEntity(xCoord, yCoord, zCoord);
    	}
    }

The crash log is here:

---- Minecraft Crash Report ----

// This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]

Time: 03/09/15 02:04

Description: Ticking block entity

java.lang.StackOverflowError: Ticking block entity

at com.nr.mod.blocks.tileentities.TileEntityFusionReactor.getMain(TileEntityFusionReactor.java:282)

at com.nr.mod.blocks.tileentities.TileEntityFusionReactor.fuel1(TileEntityFusionReactor.java:831)

at com.nr.mod.blocks.tileentities.TileEntityFusionReactor.fuel1(TileEntityFusionReactor.java:870)

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

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

-- Head --

Stacktrace:

at com.nr.mod.blocks.tileentities.TileEntityFusionReactor.getMain(TileEntityFusionReactor.java:282)

at com.nr.mod.blocks.tileentities.TileEntityFusionReactor.fuel1(TileEntityFusionReactor.java:831)

at com.nr.mod.blocks.tileentities.TileEntityFusionReactor.fuel1(TileEntityFusionReactor.java:870)

-- Block entity being ticked --

Details:

Name: fusionReactor // com.nr.mod.blocks.tileentities.TileEntityFusionReactor

Block type: ID #688 (tile.fusionReactor // com.nr.mod.blocks.tileentities.BlockFusionReactor)

Block data value: 4 / 0x4 / 0b0100

Block location: World: (256,68,-268), Chunk: (at 0,4,4 in 16,-17; contains blocks 256,0,-272 to 271,255,-257), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)

Actual block type: ID #688 (tile.fusionReactor // com.nr.mod.blocks.tileentities.BlockFusionReactor)

Actual block data value: 4 / 0x4 / 0b0100

Stacktrace:

at net.minecraft.world.World.updateEntities(World.java:2165)

at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:515)

at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:703)

at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614)

at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485)

at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752)

-- Affected level --

Details:

Level name: New World

All players: 1 total; [EntityPlayerMP['turbodiesel4598'/17, l='New World', x=254.54, y=64.00, z=-265.76]]

Chunk stats: ServerChunkCache: 738 Drop: 0

Level seed: 3123837790505255121

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

Level generator options: 2;7,60x1,2x3,2;1;village

Level spawn location: World: (229,4,-248), Chunk: (at 5,0,8 in 14,-16; contains blocks 224,0,-256 to 239,255,-241), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)

Level time: 5464369 game time, 23195750 day time

Level dimension: 0

Level storage version: 0x04ABD - Anvil

Level weather: Rain time: 78668 (now: false), thunder time: 48259 (now: false)

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

-- System Details --

Details:

Minecraft Version: 1.7.10

Operating System: Windows 8.1 (amd64) version 6.3

Java Version: 1.7.0_71, Oracle Corporation

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

Memory: 699922544 bytes (667 MB) / 1004011520 bytes (957 MB) up to 3151495168 bytes (3005 MB)

JVM Flags: 3 total; -Xincgc -Xmx3G -Xms1G

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

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

FML: MCP v9.05 FML v7.10.85.1264 Minecraft Forge 10.13.2.1264 14 mods loaded, 14 mods active

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

FML{7.10.85.1264} [Forge Mod Loader] (forgeSrc-1.7.10-10.13.2.1264.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Forge{10.13.2.1264} [Minecraft Forge] (forgeSrc-1.7.10-10.13.2.1264.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

CodeChickenCore{1.0.4.29} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

<CoFH ASM>{000} [CoFH ASM Data Initialization] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

NotEnoughItems{1.0.3.73} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.3.73-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

CoFHCore{1.7.10R3.0.0B9} [CoFH Core] (CoFHCore-[1.7.10]3.0.0B9-89-dev.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

NuclearCraft{0.0.1.5} [NuclearCraft] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

EnderIO{1.7.10-2.2.6.317} [Ender IO] (EnderIO-1.7.10-2.2.6.317.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

ForgeMultipart{1.1.0.314} [Forge Multipart] (ForgeMultipart-1.7.10-1.1.0.314-dev.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

ExtraUtilities{1.2.1} [Extra Utilities] (extrautilities-1.2.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

IC2{2.2.681-experimental} [industrialCraft 2] (industrialcraft-2-2.2.681-experimental.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

McMultipart{1.1.0.314} [Minecraft Multipart Plugin] (ForgeMultipart-1.7.10-1.1.0.314-dev.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

ForgeMicroblock{1.1.0.314} [Forge Microblocks] (ForgeMultipart-1.7.10-1.1.0.314-dev.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Profiler Position: N/A (disabled)

Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Player Count: 1 / 8; [EntityPlayerMP['turbodiesel4598'/17, l='New World', x=254.54, y=64.00, z=-265.76]]

Type: Integrated Server (map_client.txt)

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

At lines 831 and 870, getMain() is being used. Line 282 is the 1st line in the getMain() method (if (worldObj.getTileEntity...).

Thanks for any help in advance.

Failender · September 3, 2015

show the method fuel1. seems like u got an endless loop there.

turbodiesel4598 · September 3, 2015

fuel1():

private void fuel1() {
    	if (getMain() != null) {
    	if (isMain()) {
                
                ...code related to the reactor's fuel...

                } else {
    		getMain().fuel1();
    	}
    	} else {
    		
    	}
    }

isMain():

public boolean isMain() {
    	return getMain() != null ? isMain : false;
    }

Failender · September 3, 2015

so. in ur method fuel1() u are calling ure method fuel1() where u are calling fuel1() where u are calling fuel1().. i guess u can see where this is going

turbodiesel4598 · September 3, 2015

Sort of. But surely I should be getting the main TileEntity and running its fuel1() (since isMain() will return true), and not continuing to cycle over and over?

Failender · September 3, 2015

public boolean isMain() {
    	return getMain() != null ? isMain : false;
    }

this method looks suspicious. are u ever setting the variable isMain?

turbodiesel4598 · September 3, 2015

Ah, sorry - yes, I am (I'm pretty sure):

public void isMain(World world, int x, int y, int z) {
    	if (world.getBlock(x, y - 2, z) == NRBlocks.fusionReactor) {
    		isMain = false;
    	} else {
    		isMain = true;
    	}
    }

Failender · September 3, 2015

Well. I wont be reading that line for line to find the error. Try using some sysos to find the error. I can tell you that u are getting an endless loop, because there is something messed up in the fuel1() method, and I think it is the part where u determine if the block is the main block

turbodiesel4598 · September 3, 2015

Well, by just mucking around a bit, I managed to accidentally solve the problem - thanks a bunch for the help, as it ultimately led to the changes that I tried to make

Failender · September 3, 2015

ur welcome. glad i could help

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[1.7.10] Strange Crash (Ticking Block Entity)

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