Bukkit Errors

One of my friends overloaded our private server somehow and it ruined everything. Now when I run a fresh craftbukkit with no plugins worlds or files, I get this error:

18:15:09 [SEVERE] Exception in thread "Thread-6"
18:15:09 [SEVERE] org.bukkit.craftbukkit.libs.com.google.gson.JsonParseException
: Date is not formatted correctly
18:15:09 [SEVERE] at org.bukkit.craftbukkit.updater.BukkitDLUpdaterService
$DateDeserializer.deserialize(BukkitDLUpdaterService.java:97)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.updater.BukkitDLUpdaterService
$DateDeserializer.deserialize(BukkitDLUpdaterService.java:90)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.libs.com.google.gson.TreeTypeA
dapter.read(TreeTypeAdapter.java:59)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.libs.com.google.gson.internal.
bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.libs.com.google.gson.internal.
bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java
:176)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.libs.com.google.gson.Gson.from
Json(Gson.java:755)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.libs.com.google.gson.Gson.from
Json(Gson.java:694)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.updater.BukkitDLUpdaterService
.fetchArtifact(BukkitDLUpdaterService.java:51)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.updater.BukkitDLUpdaterService
.getArtifact(BukkitDLUpdaterService.java:28)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.updater.AutoUpdater$1.run(Auto
Updater.java:77)
18:15:09 [SEVERE] Caused by: java.text.ParseException: Unparseable date: "2012-0
9-28T20:34:43"
18:15:09 [SEVERE] at java.text.DateFormat.parse(Unknown Source)
18:15:09 [SEVERE] at org.bukkit.craftbukkit.updater.BukkitDLUpdaterService
$DateDeserializer.deserialize(BukkitDLUpdaterService.java:95)
18:15:09 [SEVERE] ... 9 more


Can anyone tell me whats wrong or if i can fix this. Is there a way to recover a corrupted world?

 

For a quick workaround while the problem is being addressed, see here.

 

I don't know if this will help or not, but restarting your computer and reinstalling Java never hurts

 

See this:
http://forums.bukkit.org/threads/something-about-this-tells-me-something-is-wrong.106014/

 

Turning off the updater worked. Thanks!