After attempting to set my block obsidianore to drop obsidianingot instead, when I was testing, destroying the block resulted in missing textures spawning, which would crash the game if I picked them up. After repeating this with the block dropping sticks, an Item already in minecraft, It worked perfectly. I think this means that the Item copperingot is not being registered before copperore, but I am not sure.

 

Here is the CopperOre Class: https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/blocks/CopperOre.java

Here is CommonProxy: https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/proxy/CommonProxy.java

Here is modItems: https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/ModItems.java

 

and here is the crash report:

 

---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 10/30/17 9:23 PM
Description: Ticking player

java.lang.ArrayIndexOutOfBoundsException: -1
    at net.minecraft.stats.StatList.getObjectsPickedUpStats(StatList.java:123)
    at net.minecraft.entity.item.EntityItem.onCollideWithPlayer(EntityItem.java:449)
    at net.minecraft.entity.player.EntityPlayer.collideWithPlayer(EntityPlayer.java:662)
    at net.minecraft.entity.player.EntityPlayer.onLivingUpdate(EntityPlayer.java:633)
    at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:2392)
    at net.minecraft.entity.player.EntityPlayer.onUpdate(EntityPlayer.java:270)
    at net.minecraft.entity.player.EntityPlayerMP.onUpdateEntity(EntityPlayerMP.java:423)
    at net.minecraft.network.NetHandlerPlayServer.update(NetHandlerPlayServer.java:185)
    at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.update(NetworkDispatcher.java:212)
    at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:307)
    at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:196)
    at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:863)
    at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:741)
    at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:590)
    at java.lang.Thread.run(Unknown Source)

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

-- Head --
Thread: Server thread
Stacktrace:
    at net.minecraft.stats.StatList.getObjectsPickedUpStats(StatList.java:123)
    at net.minecraft.entity.item.EntityItem.onCollideWithPlayer(EntityItem.java:449)
    at net.minecraft.entity.player.EntityPlayer.collideWithPlayer(EntityPlayer.java:662)
    at net.minecraft.entity.player.EntityPlayer.onLivingUpdate(EntityPlayer.java:633)
    at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:2392)
    at net.minecraft.entity.player.EntityPlayer.onUpdate(EntityPlayer.java:270)

-- Player being ticked --
Details:
    Entity Type: null (net.minecraft.entity.player.EntityPlayerMP)
    Entity ID: 194
    Entity Name: Player750
    Entity's Exact location: 180.51, 47.00, 57.51
    Entity's Block location: World: (180,47,57), Chunk: (at 4,2,9 in 11,3; contains blocks 176,0,48 to 191,255,63), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
    Entity's Momentum: 0.00, -0.08, 0.00
    Entity's Passengers: []
    Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
    at net.minecraft.entity.player.EntityPlayerMP.onUpdateEntity(EntityPlayerMP.java:423)
    at net.minecraft.network.NetHandlerPlayServer.update(NetHandlerPlayServer.java:185)
    at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.update(NetworkDispatcher.java:212)
    at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:307)

-- Ticking connection --
Details:
    Connection: net.minecraft.network.NetworkManager@6fbe3b33
Stacktrace:
    at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:196)
    at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:863)
    at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:741)
    at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:590)
    at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_151, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 732016696 bytes (698 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)
    JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M
    IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
    FML: MCP 9.42 Powered by Forge 14.23.0.2515 5 mods loaded, 5 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

    | State     | ID        | Version      | Source                           | Signature |
    |:--------- |:--------- |:------------ |:-------------------------------- |:--------- |
    | UCHIJAAAA | minecraft | 1.12.2       | minecraft.jar                    | None      |
    | UCHIJAAAA | mcp       | 9.42         | minecraft.jar                    | None      |
    | UCHIJAAAA | FML       | 8.0.99.99    | forgeSrc-1.12.2-14.23.0.2515.jar | None      |
    | UCHIJAAAA | forge     | 14.23.0.2515 | forgeSrc-1.12.2-14.23.0.2515.jar | None      |
    | UCHIJAAAA | btm       | 0.0.1        | bin                              | None      |

    Loaded coremods (and transformers):
    GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
    Profiler Position: N/A (disabled)
    Player Count: 1 / 8; [EntityPlayerMP['Player750'/194, l='New World', x=180.51, y=47.00, z=57.51]]
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'fml,forge'

 

 

Block are registered before items. Therefor this line:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/proxy/CommonProxy.java#L87

Runs before this line:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/proxy/CommonProxy.java#L70

Which means that this line:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/blocks/CopperOre.java#L32

Assigns the CURRENT VALUE of the field (which has not yet had the ObjectHolder annotation run to inject a value) to the block's field.

 

Also:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/ModItems.java#L36

Seriously?

NO, BAD MODDER. DO NOT ASSIGN THESE FIELDS MANUALLY. ESPECIALLY NOT WITH A SEPARATE INSTANCE

16 hours ago, Draco18s said:

Block are registered before items. Therefor this line:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/proxy/CommonProxy.java#L87

Runs before this line:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/proxy/CommonProxy.java#L70

Which means that this line:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/blocks/CopperOre.java#L32

Assigns the CURRENT VALUE of the field (which has not yet had the ObjectHolder annotation run to inject a value) to the block's field.

 

Also:

https://github.com/InterdimensionalCat/ModTest/blob/master/java/com/benthom123/test/ModItems.java#L36

Seriously?

NO, BAD MODDER. DO NOT ASSIGN THESE FIELDS MANUALLY. ESPECIALLY NOT WITH A SEPARATE INSTANCE

 

Thanks for the info, I found a fix that is working and allows me to assign more than 1 drop to the item.

 

As for the @ObjectHolder stuff, I am not sure what way I should do it that is better, I tried putting everything under the same @ObjectHolder annotation but that crashed all of my textures and I didn't know how to fix that. Could you show me an example of what you mean?

You see where it says = new Thing()?

Remove = new Thing()

ok done, that's a whole lot cleaner now, thanks!