Im getting this in the log, i think it was the cause of a server crash last night. After this spammed the log there was a java heap error. ran out of memory. Can anyone kindly tell me what this means and is there any way to protect against it? Code: 2011-09-04 03:19:22 [SEVERE] Could not pass event BLOCK_PISTON_EXTEND to Essentials java.lang.ClassCastException: org.bukkit.material.MaterialData cannot be cast to org.bukkit.material.PistonBaseMaterial at org.bukkit.event.block.BlockPistonEvent.getDirection(BlockPistonEvent.java:41) at org.bukkit.event.block.BlockPistonExtendEvent.getBlocks(BlockPistonExtendEvent.java:37) at com.earth2me.essentials.signs.SignBlockListener.onBlockPistonExtend(SignBlockListener.java:196) at org.bukkit.plugin.java.JavaPluginLoader$43.execute(JavaPluginLoader.java:540) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:338) at net.minecraft.server.BlockPiston.g(BlockPiston.java:70) at net.minecraft.server.BlockPiston.doPhysics(BlockPiston.java:47) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:434) at net.minecraft.server.BlockButton.interact(BlockButton.java:154) at net.minecraft.server.BlockButton.b(BlockButton.java:125) at net.minecraft.server.ItemInWorldManager.dig(ItemInWorldManager.java:76) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:478) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:140) at net.minecraft.server.Packet14BlockDig.a(SourceFile:42) at net.minecraft.server.NetworkManager.b(NetworkManager.java:226) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:89) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:478) at net.minecraft.server.NetworkListenThread.a(SourceFile:105) at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:454) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:363) at net.minecraft.server.ThreadServerApplication.run(SourceFile:422) 2011-09-04 03:19:22 [SEVERE] Could not pass event BLOCK_PISTON_EXTEND to Factions java.lang.ClassCastException: org.bukkit.material.MaterialData cannot be cast to org.bukkit.material.PistonBaseMaterial at org.bukkit.event.block.BlockPistonEvent.getDirection(BlockPistonEvent.java:41) at com.massivecraft.factions.listeners.FactionsBlockListener.onBlockPistonExtend(FactionsBlockListener.java:74) at org.bukkit.plugin.java.JavaPluginLoader$43.execute(JavaPluginLoader.java:540) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:338) at net.minecraft.server.BlockPiston.g(BlockPiston.java:70) at net.minecraft.server.BlockPiston.doPhysics(BlockPiston.java:47) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:434) at net.minecraft.server.BlockButton.interact(BlockButton.java:154) at net.minecraft.server.BlockButton.b(BlockButton.java:125) at net.minecraft.server.ItemInWorldManager.dig(ItemInWorldManager.java:76) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:478) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:140) at net.minecraft.server.Packet14BlockDig.a(SourceFile:42) at net.minecraft.server.NetworkManager.b(NetworkManager.java:226) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:89) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:478) at net.minecraft.server.NetworkListenThread.a(SourceFile:105) at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:454) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:363) at net.minecraft.server.ThreadServerApplication.run(SourceFile:422) 2011-09-04 03:19:22 [SEVERE] Could not pass event BLOCK_PISTON_EXTEND to EssentialsProtect java.lang.ClassCastException: org.bukkit.material.MaterialData cannot be cast to org.bukkit.material.PistonBaseMaterial at org.bukkit.event.block.BlockPistonEvent.getDirection(BlockPistonEvent.java:41) at org.bukkit.event.block.BlockPistonExtendEvent.getBlocks(BlockPistonExtendEvent.java:37) at com.earth2me.essentials.protect.EssentialsProtectBlockListener.onBlockPistonExtend(EssentialsProtectBlockListener.java:332) at org.bukkit.plugin.java.JavaPluginLoader$43.execute(JavaPluginLoader.java:540) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:338) at net.minecraft.server.BlockPiston.g(BlockPiston.java:70) at net.minecraft.server.BlockPiston.doPhysics(BlockPiston.java:47) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:434) at net.minecraft.server.BlockButton.interact(BlockButton.java:154) at net.minecraft.server.BlockButton.b(BlockButton.java:125) at net.minecraft.server.ItemInWorldManager.dig(ItemInWorldManager.java:76) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:478) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:140) at net.minecraft.server.Packet14BlockDig.a(SourceFile:42) at net.minecraft.server.NetworkManager.b(NetworkManager.java:226) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:89) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:478) at net.minecraft.server.NetworkListenThread.a(SourceFile:105) at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:454) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:363) at net.minecraft.server.ThreadServerApplication.run(SourceFile:422) 2011-09-04 03:19:22 [SEVERE] Could not pass event BLOCK_PISTON_EXTEND to LWC java.lang.ClassCastException: org.bukkit.material.MaterialData cannot be cast to org.bukkit.material.PistonBaseMaterial at org.bukkit.event.block.BlockPistonEvent.getDirection(BlockPistonEvent.java:41) at com.griefcraft.listeners.LWCBlockListener.onBlockPistonExtend(LWCBlockListener.java:159) at org.bukkit.plugin.java.JavaPluginLoader$43.execute(JavaPluginLoader.java:540) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:338) at net.minecraft.server.BlockPiston.g(BlockPiston.java:70) at net.minecraft.server.BlockPiston.doPhysics(BlockPiston.java:47) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:435) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:439) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:49) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.java:286) at net.minecraft.server.World.k(World.java:459) at net.minecraft.server.World.applyPhysics(World.java:434) at net.minecraft.server.BlockButton.interact(BlockButton.java:154) at net.minecraft.server.BlockButton.b(BlockButton.java:125) at net.minecraft.server.ItemInWorldManager.dig(ItemInWorldManager.java:76) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:478) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:140) at net.minecraft.server.Packet14BlockDig.a(SourceFile:42) at net.minecraft.server.NetworkManager.b(NetworkManager.java:226) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:89) at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:478) at net.minecraft.server.NetworkListenThread.a(SourceFile:105) at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:454) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:363) at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
well i got rid of essentials and got CommandBook, now im trying to diagnose why the prefixes in perm 3.x dont work anymore -.- and it looks like i cant just install essentialschat again, i think its dependant on essentials
Install iChat, or mChat,they're far superior to essentialschat @matter123 I'm putting that in my signature!
Typicall for a new Member. No idea what they are talking about buut ofc they say Essentials is good because they have soo much knowledge You just like that it gives you everthing, why would you are about lags or bugs XD
Yes i am a new 'member' but i have been using bukkit for months now and i just stuck to essentials because i have never had any problems with it and for me, it is very simple and easy to use.
It's not very simple and easy to use, in fact it has a GIANT config and especially newer users don't understand it fully... Essentials is simply too bulky, it takes away alot of ressources and gives you ALOT of commands that you don't need. Most experienced users use an alternative, simply because of that. Besides, I know tons of people that have have had issues with essentials but that doesn't mean that you have to have problems with it. Also, you say you never tried anything else, why don't you go and try for example Commandbook? You will see most of the needed commands are there, so you wont actually notice a difference there, just your ram usage will go down XD
Essentials is a GERAT plugin, so long as you are going to use the majority of it's features. I myself use it all, bar Essentials Protect. Never had issue with it and NEVER been affected by a single bug.
@matter123 @sddddgjd That's an easy one, essentials listens to pistons, the same reason any plugin listens for pistons, to stop pistons breaking objects that store data. In this case, to prevent the destruction of signs, like those trade ones, which contain player items. Essentials is rather modular, if you don't want ess protect, remove it, same goes for most the other 'bloat'. You'll find most the code is bloatless (probably due to the fact development has changed hands a few times ).
