We have lately been experiencing the following error on our server. The error is followed by "Read timed out" messages and need a restart to continue. The error occurs daily, up to 6 times a day. I was told by someone in #bukkit that the error is caused by one of my plugins, but I am having a hard time figuring out which. 1. OS: Ubuntu 11.04 2. Architechture: x64 3. Java: 1.6.0_24 4. No wrappers 5. #1000 7. Our plugins 8. Console log Code: [Server] INFO java.util.ConcurrentModificationException [Server] INFO at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) [Server] INFO at java.util.AbstractList$Itr.next(AbstractList.java:343) [Server] INFO at java.util.AbstractCollection.removeAll(AbstractCollection.java:336) [Server] INFO at net.minecraft.server.World.cleanUp(World.java:1072) [Server] INFO at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:447) [Server] INFO at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:361) [Server] INFO at net.minecraft.server.ThreadServerApplication.run(SourceFile:422) 9. I am rather clueless on what to try as the error doesn't tell me anything. 10. The issue is caused by one of our plugins, but I am unsure of which. We have a bunch of plugins and enabling them one-by-one (and waiting 1-6 hours for the crash) is just too much work. Any help is greatly appreciated.
