Greetings! I'm looking for issues with the following error;

 

 

 

java.util.ConcurrentModificationException

at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)

at java.util.ArrayList$Itr.next(ArrayList.java:851)

at scala.collection.convert.Wrappers$JIteratorWrapper.next(Wrappers.scala:43)

at scala.collection.Iterator$class.foreach(Iterator.scala:743)

at scala.collection.AbstractIterator.foreach(Iterator.scala:1174)

at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)

at scala.collection.AbstractIterable.foreach(Iterable.scala:54)

at mrtjp.core.world.BlockUpdateHandler$.onTick(blocktickhook.scala:46)

at cpw.mods.fml.common.eventhandler.ASMEventHandler_1315_BlockUpdateHandler$_onTick_WorldTickEvent.invoke(.dynamic)

at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)

at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138)

at cpw.mods.fml.common.FMLCommonHandler.onPostWorldTick(FMLCommonHandler.java:255)

at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:645)

at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)

at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)

at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

 

 

 

edit: Nevermind, rtfm'd. https://gist.github.com/anonymous/661cac55fde6f76ac2fb

 

Also, if this is the wrong place to ask, just let me know. As a background, this is me single-playering a set of mods my wife and I are cobbling together, prior to use on a private server.

You 'mrtjp' mod is throwing an error. Remove whatever it is.

I appreciate it! Just to make sure I understand, you got that from the single line in the piece I spoiler'd referencing mrtjp, the only 'not default minecraft / java' line in that blurb? Or did something else point you in that direction?

 

And, to clarify- Worked, seems to be running fine now.

Ya pretty much. You start reading the stack top down, you had java internals then scala internals, which are all known to be fine. And the you his this mrtjp stuff which is a mod and is what is calling the loop thats triggering the error.

 

And then below that is forges event code which i know is good and doesnt have anything that would cause that exception. So mrtjp it is.