Solved Problem with ThreadLoginVerifier

hello,i have my own launcher and login with pass for access is a pass and log from my site.
All fine with my first server ,but when i want to start second server ,give such problem

[SEVERE] java.lang.NoSuchMethodError: org.bukkit.craftbukkit.CraftServer.isIPFiltering()Z20:33:31
[SEVERE] at net.minecraft.server.ThreadLoginVerifier.run(ThreadLoginVerifier.java:35)20:33:39 [INFO] Disconnecting Toptik [/109.205.254.86:48920]: Took too long to log in

What need to do whis this ? mb some problem with ThreadLoginVerifier in bukkit