Bukkit

What steps will reproduce the problem?
1. run the server (with noone online)
2. Wait

What is the expected output?
notthing

What do you see instead?
an error

What version of the product are you using?
VoxelUpdate 1.2.5
CraftBukkit version git-Bukkit-1.3.2-R1.0-b2377jnks (MC: 1.3.2) (Implementing API version 1.3.2-R1.0)

Do you have an error log of what happened?
yes ... see below

Please provide any additional information below.
<<code>>
2012-10-10 11:13:57 [WARNING] [Server] The main thread failed to respond after 10 seconds
2012-10-10 11:13:57 [WARNING] [Server] Probable Plugin cause: 'VoxelUpdate'
2012-10-10 11:13:57 [WARNING] [Server] What follows is the stack trace of the main thread
2012-10-10 11:13:57 [WARNING] [Server]    at java.net.SocketInputStream.socketRead0(Native Method)
2012-10-10 11:13:57 [WARNING] [Server]    at java.net.SocketInputStream.read(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at java.net.SocketInputStream.read(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at java.io.BufferedInputStream.fill(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at java.io.BufferedInputStream.read1(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at java.io.BufferedInputStream.read(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at java.net.URL.openStream(Unknown Source)
2012-10-10 11:13:57 [WARNING] [Server]    at com.thevoxelbox.voxelupdate.runner.UpdateVersionInformationRunnable.run(UpdateVersionInformationRunnable.java:47)
2012-10-10 11:13:57 [WARNING] [Server]    at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:52)
2012-10-10 11:14:07 [SEVERE] java.io.IOException: Server returned HTTP response code: 502 for URL: http://dl.dropbox.com/u/32644765/up/voxelplugins/VoxelUpdate.xml
2012-10-10 11:14:07 [SEVERE]     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
2012-10-10 11:14:07 [SEVERE]     at java.net.URL.openStream(Unknown Source)
2012-10-10 11:14:07 [SEVERE]     at com.thevoxelbox.voxelupdate.runner.UpdateVersionInformationRunnable.run(UpdateVersionInformationRunnable.java:47)
2012-10-10 11:14:07 [SEVERE]     at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:52)
2012-10-10 11:14:07 [SEVERE]     at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:321)
2012-10-10 11:14:07 [SEVERE]     at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:509)
2012-10-10 11:14:07 [SEVERE]     at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
2012-10-10 11:14:07 [SEVERE]     at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:473)
2012-10-10 11:14:07 [SEVERE]     at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:405)
2012-10-10 11:14:07 [SEVERE]     at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
<</code>>