Bukkit

What steps will reproduce the problem?
1.cant reproduce. or dont know cause
2.
3.

What is the expected output? What do you see instead?

What version of the product are you using?

v1.9

Do you have an error log of what happened?

27.06 17:41:28 [Server] INFO Caused by: java.lang.ClassCastException
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:581)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.DedicatedServerConnection.b(SourceFile:30)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:115)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.NetworkManager.b(NetworkManager.java:292)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.Packet15Place.handle(SourceFile:58)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:637)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.PlayerInteractManager.interact(PlayerInteractManager.java:386)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.ItemStack.placeItem(ItemStack.java:79)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.ItemBlock.interactWith(ItemBlock.java:71)
27.06 17:41:28 [Server] INFO at net.minecraft.server.v1_5_R3.ItemBlock.processBlockPlace(ItemBlock.java:85)
27.06 17:41:28 [Server] INFO at org.bukkit.craftbukkit.v1_5_R3.event.CraftEventFactory.callBlockPlaceEvent(CraftEventFactory.java:112)
27.06 17:41:28 [Server] INFO at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
27.06 17:41:28 [Server] INFO at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
27.06 17:41:28 [Server] INFO at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
27.06 17:41:28 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
27.06 17:41:28 [Server] INFO org.bukkit.event.EventException
27.06 17:41:28 [Server] SEVERE Could not pass event BlockPlaceEvent to ProtectionStones v1.9

Please provide any additional information below.

Would need to know a lot of information to know what is causing this:

Starting with what versions of the following are you running:

Craft Bukkit, WorldGuard ,and WorldEdit.

5.5.6 WE

5.7.5 WG

1.5.2 R1.0 CB

aside from that, it seems to be a random error. i can not seem to replicate it deliberately.

@mal67: Go

It could be simply a busy event on your server, during the place event if a new PS Region is created, PS will access the WorldGuard Region Database do some checks, create the region, and tell WG to write the data to disk, to ensure it is saved.

@AxelDios: Go

alright, well if i am able to reproduce this error ill post new info on this ticket. thanks for your help :)