Bukkit

What steps will reproduce the problem?
1. Put .jar in /plugins
2. Start server
3. Check server logs

What is the expected output? What do you see instead?
I expect the plugin to start up, instead it fails to load and dumps a stack trace.

What version of the product are you using?
version 2.5.2

Do you have an error log of what happened?
[ChessCraft] Enabling ChessCraft v2.5.2-SNAPSHOT
[06:00:46] [Server thread/WARN]: java.lang.ClassNotFoundException: me.desht.chesscraft.dhutils.nms.v1_8_R1.NMSHandler
[06:00:46] [Server thread/WARN]:     at java.net.URLClassLoader$1.run(Unknown Source)
[06:00:46] [Server thread/WARN]:     at java.net.URLClassLoader$1.run(Unknown Source)
[06:00:46] [Server thread/WARN]:     at java.security.AccessController.doPrivileged(Native Method)
[06:00:46] [Server thread/WARN]:     at java.net.URLClassLoader.findClass(Unknown Source)
[06:00:46] [Server thread/WARN]:     at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101)
[06:00:46] [Server thread/WARN]:     at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)
[06:00:46] [Server thread/WARN]:     at java.lang.ClassLoader.loadClass(Unknown Source)
[06:00:46] [Server thread/WARN]:     at java.lang.ClassLoader.loadClass(Unknown Source)
[06:00:46] [Server thread/WARN]:     at java.lang.Class.forName0(Native Method)
[06:00:46] [Server thread/WARN]:     at java.lang.Class.forName(Unknown Source)
[06:00:46] [Server thread/WARN]:     at me.desht.chesscraft.dhutils.nms.NMSHelper.init(NMSHelper.java:65)
[06:00:46] [Server thread/WARN]:     at me.desht.chesscraft.dhutils.nms.NMSHelper.init(NMSHelper.java:36)
[06:00:46] [Server thread/WARN]:     at me.desht.chesscraft.ChessCraft.onEnable(ChessCraft.java:80)
[06:00:46] [Server thread/WARN]:     at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321)
[06:00:46] [Server thread/WARN]:     at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:335)
[06:00:46] [Server thread/WARN]:     at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405)
[06:00:46] [Server thread/WARN]:     at org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugin(CraftServer.java:355)
[06:00:46] [Server thread/WARN]:     at org.bukkit.craftbukkit.v1_8_R1.CraftServer.enablePlugins(CraftServer.java:315)
[06:00:46] [Server thread/WARN]:     at net.minecraft.server.v1_8_R1.MinecraftServer.q(MinecraftServer.java:402)
[06:00:46] [Server thread/WARN]:     at net.minecraft.server.v1_8_R1.MinecraftServer.k(MinecraftServer.java:370)
[06:00:46] [Server thread/WARN]:     at net.minecraft.server.v1_8_R1.MinecraftServer.a(MinecraftServer.java:325)
[06:00:46] [Server thread/WARN]:     at net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.java:211)
[06:00:46] [Server thread/WARN]:     at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:494)
[06:00:46] [Server thread/WARN]:     at java.lang.Thread.run(Unknown Source)
[06:00:46] [Server thread/ERROR]: [ChessCraft] ChessCraft version 2.5.2-SNAPSHOT is not compatible with this CraftBukkit version.
[06:00:46] [Server thread/ERROR]: [ChessCraft] Check http://dev.bukkit.org/server-mods/chesscraft for information on updated builds.
[06:00:46] [Server thread/ERROR]: [ChessCraft] Plugin disabled.

You can get a 1.8 version of ChessCraft at http://ci.mineconomy.org/job/ChessCraft/lastSuccessfulBuild/