Bukkit

What steps will reproduce the problem?
1. Wait for coal ore to regenerate? Maybe coal, the iron regenerated

What version of the product are you using?
0.1

Do you have an error log of what happened?
2012-08-19 22:47:38 [WARNING] Could not properly handle event BLOCK_PHYSICS:
java.lang.IllegalAccessError: Synchronized code got accessed from another thread: me.Todkommt.GrowableOres.GrowTimer
    at org.bukkit.event.Listener.onBlockPhysics(Listener:0)
    at sun.reflect.GeneratedMethodAccessor238.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.World.m(World.java:430)
    at net.minecraft.server.World.applyPhysics(World.java:415)
    at net.minecraft.server.World.update(World.java:371)
    at net.minecraft.server.World.setTypeId(World.java:343)
    at org.bukkit.craftbukkit.block.CraftBlock.setTypeId(CraftBlock.java:92)
    at me.Todkommt.GrowableOres.OrePlant.grow(OrePlant.java:91)
    at me.Todkommt.GrowableOres.GrowTimer.run(GrowTimer.java:41)

Please provide any additional information below.
If you need anymore info let me know.

You shouldn't be using v0.1 it has game-breaking dupe bugs in it. for the error, it looks like either there has been a very rare coincidence of the physics update executing at the exact same time as my timer or theres a plugin executing unsynchronised, long-term physics code that interfered with the placing of the ore blocks. in less technical terms: it probably was a coincidence and i cant really fix it. just answer to this comment if this error keeps happening on a regular basis, ill look further into that then.