Minecraft Crash

Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-2956. If I am wrong, please go yell at Dinnerbone.

Getting this error too. I'll include the client crash, Its unmodded! I can't log on my server because of that! I warped to my Survival world "/w s" and poof it crashed the client, Dont tell me I need to create another world!

I just hope I don't need to reset all of my worlds, I have 3 Survival worlds, 3 Creative worlds. They worked nice in 1.4.2... why in 1.4.4 not? Its supposed to bring bugfixes, not crashing... >.<

Maybe I'm wrong, but there is no /warp or /w command in vanilla Minecraft. The command is /tp. I believe you are playing on a Bukkit server with plugins or modded Minecraft.

@Joel yes, im using bukkit, but I dont think its related to bukkit

This ticket is invalid.
Any non-standard server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft.