bukkit error

2013-04-23 21:18:04 [INFO] Starting minecraft server version 1.5.1
2013-04-23 21:18:04 [INFO] Loading properties
2013-04-23 21:18:04 [INFO] Default game type: SURVIVAL
2013-04-23 21:18:04 [INFO] Generating keypair
2013-04-23 21:18:05 [INFO] Starting Minecraft server on *:25565
2013-04-23 21:18:05 [INFO] This server is running CraftBukkit version git-Bukkit-1.5.1-R0.1-21-g49b0699-b2754jnks (MC: 1.5.1) (Implementing API version 1.5.1-R0.2)
2013-04-23 21:18:05 [SEVERE] ebean.properties not found
2013-04-23 21:18:05 [WARNING] No Entities found in ClassPath using ClassPathReader [com.avaje.ebeaninternal.server.util.DefaultClassPathReader@513d2d11] Classpath Searched[[file:/C:/Minecraft_Server/craftbukkit.jar]]
2013-04-23 21:18:05 [INFO] Classpath search hits in jars[] pkgs[]  searchTime[3]
2013-04-23 21:18:05 [INFO] DataSourcePool [SimpleSpawn] autoCommit[false] transIsolation[SERIALIZABLE] min[2] max[20]
2013-04-23 21:18:05 [INFO] SubClassFactory parent ClassLoader [org.bukkit.plugin.java.PluginClassLoader]
2013-04-23 21:18:05 [INFO] Entities enhanced[0] subclassed[0]
2013-04-23 21:18:05 [INFO] [SimpleSpawn] Loading SimpleSpawn v2.2.1
2013-04-23 21:18:05 [INFO] Preparing level "CraftLand"
2013-04-23 21:18:06 [INFO] Preparing start region for level 0 (Seed: 7146115666835279219)
2013-04-23 21:18:06 [INFO] Preparing start region for level 1 (Seed: 7146115666835279219)
2013-04-23 21:18:07 [INFO] Preparing spawn area: 79%
2013-04-23 21:18:07 [INFO] Preparing start region for level 2 (Seed: 7146115666835279219)
2013-04-23 21:18:07 [INFO] [SimpleSpawn] Enabling SimpleSpawn v2.2.1
2013-04-23 21:18:07 [CONFIG] [SimpleSpawn] loglevel: INFO
2013-04-23 21:18:07 [INFO] [SimpleSpawn] ebean.properties created!
2013-04-23 21:18:07 [INFO] [SimpleSpawn] SimpleSpawn enabled.
2013-04-23 21:18:07 [INFO] Server permissions file permissions.yml is empty, ignoring it
2013-04-23 21:18:07 [INFO] Done (1.621s)! For help, type "help" or "?"
2013-04-23 21:18:12 [INFO] Plugins (1): SimpleSpawn
2013-04-23 21:18:16 [INFO] CONSOLE: Stopping the server..
2013-04-23 21:18:16 [INFO] Stopping server
2013-04-23 21:18:16 [INFO] [SimpleSpawn] Disabling SimpleSpawn v2.2.1
2013-04-23 21:18:16 [INFO] Saving players
2013-04-23 21:18:16 [WARNING] DSCT: socket closed
2013-04-23 21:18:16 [INFO] Saving worlds
2013-04-23 21:18:16 [INFO] Closing listening thread
2013-04-23 21:18:16 [INFO] Saving chunks for level 'CraftLand'/Overworld
2013-04-23 21:18:17 [INFO] Saving chunks for level 'CraftLand_nether'/Nether
2013-04-23 21:18:17 [INFO] Saving chunks for level 'CraftLand_the_end'/The End