Bukkit/CraftBukkit — comment on commit ed6232b25e19271bd37589ce820cdf75c4411835
File:  line 0
By snowleo:

java.lang.NullPointerException
at org.bukkit.craftbukkit.CraftWorld.explodeBlock(CraftWorld.java:909)
at net.minecraft.server.EntityEnderDragon.a(EntityEnderDragon.java:498)
at net.minecraft.server.EntityEnderDragon.d(EntityEnderDragon.java:330)
at net.minecraft.server.EntityLiving.w_(EntityLiving.java:297)
at net.minecraft.server.World.entityJoinedWorld(World.java:1253)
at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:107)