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[1.7.2]Packet Handler Illegal State Exception

Democretes

By Democretes
in Modder Support

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Democretes Tree Puncher

Democretes

Posted
Posted

I'm having a few issues with the 1.7 packet handler. I've read up on some tutoirlas on how to do it and I'm doing it in an extrememly similar way, but I keep getting an IllegalStateException on startup.

 

Here's the source code:

https://github.com/Democretes/Fluxian-Expansion/blob/master/src/democretes/utils/network/PacketMatrix.java

https://github.com/Democretes/Fluxian-Expansion/blob/master/src/democretes/utils/network/PacketHandler.java

https://github.com/Democretes/Fluxian-Expansion/blob/master/src/democretes/FluxianExpansion.java

 

Here's the crash log.

 

---- Minecraft Crash Report ----

// Ouch. That hurt :(

 

Time: 6/14/14 10:43 PM

Description: Initializing game

 

java.lang.IllegalStateException: cannot determine the type of the type parameter 'REQ': class cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper

at io.netty.util.internal.TypeParameterMatcher.fail(TypeParameterMatcher.java:171)

at io.netty.util.internal.TypeParameterMatcher.find0(TypeParameterMatcher.java:165)

at io.netty.util.internal.TypeParameterMatcher.find(TypeParameterMatcher.java:93)

at io.netty.channel.SimpleChannelInboundHandler.<init>(SimpleChannelInboundHandler.java:60)

at io.netty.channel.SimpleChannelInboundHandler.<init>(SimpleChannelInboundHandler.java:50)

at cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper.<init>(SimpleChannelHandlerWrapper.java:17)

at cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper.getHandlerWrapper(SimpleNetworkWrapper.java:85)

at cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper.addServerHandlerAfter(SimpleNetworkWrapper.java:73)

at cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper.registerMessage(SimpleNetworkWrapper.java:63)

at democretes.utils.network.PacketHandler.init(PacketHandler.java:18)

at democretes.FluxianExpansion.penetration(FluxianExpansion.java:45)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:513)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:209)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:188)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:677)

at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:268)

at net.minecraft.client.Minecraft.startGame(Minecraft.java:583)

at net.minecraft.client.Minecraft.run(Minecraft.java:890)

at net.minecraft.client.main.Main.main(Main.java:112)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)

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

 

 

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

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

 

-- Head --

Stacktrace:

at io.netty.util.internal.TypeParameterMatcher.fail(TypeParameterMatcher.java:171)

at io.netty.util.internal.TypeParameterMatcher.find0(TypeParameterMatcher.java:165)

at io.netty.util.internal.TypeParameterMatcher.find(TypeParameterMatcher.java:93)

at io.netty.channel.SimpleChannelInboundHandler.<init>(SimpleChannelInboundHandler.java:60)

at io.netty.channel.SimpleChannelInboundHandler.<init>(SimpleChannelInboundHandler.java:50)

at cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper.<init>(SimpleChannelHandlerWrapper.java:17)

at cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper.getHandlerWrapper(SimpleNetworkWrapper.java:85)

at cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper.addServerHandlerAfter(SimpleNetworkWrapper.java:73)

at cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper.registerMessage(SimpleNetworkWrapper.java:63)

at democretes.utils.network.PacketHandler.init(PacketHandler.java:18)

at democretes.FluxianExpansion.penetration(FluxianExpansion.java:45)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:513)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:209)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:188)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:677)

at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:268)

at net.minecraft.client.Minecraft.startGame(Minecraft.java:583)

 

-- Initialization --

Details:

Stacktrace:

at net.minecraft.client.Minecraft.run(Minecraft.java:890)

at net.minecraft.client.main.Main.main(Main.java:112)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)

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

 

-- System Details --

Details:

Minecraft Version: 1.7.2

Operating System: Windows 7 (x86) version 6.1

Java Version: 1.7.0_25, Oracle Corporation

Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation

Memory: 942891528 bytes (899 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)

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

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 v9.01-pre FML v7.2.156.1060 Minecraft Forge 10.12.1.1060 5 mods loaded, 5 mods active

mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized

FML{7.2.156.1060} [Forge Mod Loader] (forgeSrc-1.7.2-10.12.1.1060.jar) Unloaded->Constructed->Pre-initialized->Initialized

Forge{10.12.1.1060} [Minecraft Forge] (forgeSrc-1.7.2-10.12.1.1060.jar) Unloaded->Constructed->Pre-initialized->Initialized

FE{0.0.1} [Fluxian Expansion] (bin) Unloaded->Constructed->Pre-initialized->Errored

examplemod{1.0} [Example Mod] (bin) Unloaded->Constructed->Pre-initialized->Initialized

Launched Version: 1.6

LWJGL: 2.9.0

OpenGL: Intel® G45/G43 Express Chipset GL version 2.1.0 - Build 8.15.10.2869, Intel

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)

Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

Anisotropic Filtering: Off (1)

 

Kwibble Diamond Finder

Kwibble

Posted
Posted

Go to the tutorials sub forums of modder support (at the top of the page). Click on either of the SimpleNetworkWrapper tutorials. Read.

We all stuff up sometimes... But I seem to be at the bottom of that pot.

Tuhljin Tree Puncher

Tuhljin

Posted
Posted

I had a similar crash when I didn't put in a constructor that took no parameters. It was required, even if it seemingly didn't do anything. PacketMatrix.Handler doesn't have one.

 

Try something like this:

 

	public Handler() {
	}

  • 3 weeks later...
Democretes Tree Puncher

Democretes

Posted
  • Author
Posted

Go to the tutorials sub forums of modder support (at the top of the page). Click on either of the SimpleNetworkWrapper tutorials. Read.

That doesn't help me at all. I know how to write the packet handler, and clearly I've done it, it's just not working for some reason.

coolAlias Reality Controller

coolAlias

Posted
Posted

Interesting, I got the same exception while trying to make an abstract version of a Message and was told it's because Netty doesn't like abstractions, but you're getting the same thing with a straight implementation :\

 

Sorry I don't know the answer, but this makes me wonder if the IMessage system is still somewhat broken? When Forge 1.7.2 first came out, it was totally broken, which is why various other network solutions came out (which apparently have memory leaks), but now it still seems to be a bit funky. I guess we just don't know how to use it...

 

Btw, I like what you did with your PacketHandler for methods and the discriminator - I did pretty much the exact same thing xD

Democretes Tree Puncher

Democretes

Posted
  • Author
Posted

Interesting, I got the same exception while trying to make an abstract version of a Message and was told it's because Netty doesn't like abstractions, but you're getting the same thing with a straight implementation :\

 

Sorry I don't know the answer, but this makes me wonder if the IMessage system is still somewhat broken? When Forge 1.7.2 first came out, it was totally broken, which is why various other network solutions came out (which apparently have memory leaks), but now it still seems to be a bit funky. I guess we just don't know how to use it...

 

Btw, I like what you did with your PacketHandler for methods and the discriminator - I did pretty much the exact same thing xD

It's simple and clean. Just the way it should be  ;)

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