Bukkit

What steps will reproduce the problem?
- normal serveractivities

What is the expected output? What do you see instead?
- errormessage in console

What version of the product are you using?
- R: Mobile Admin Plugin v3.2.5 for CB 1.3.1-R2.0 Sep 06, 2012
- CraftBukkit DevBuild 1.3.2-R0.2 (Build #02366)

Do you have an error log of what happened?
[SEVERE] javax.crypto.BadPaddingException: Given final block not properly padded
[SEVERE] at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:811)
[SEVERE] at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:676)
[SEVERE] at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:313)
[SEVERE] at javax.crypto.Cipher.doFinal(Cipher.java:2087)
[SEVERE] at net.kaltner.MobileAdmin.ServerThread.decrypt(ServerThread.java:1137)
[SEVERE] at net.kaltner.MobileAdmin.ServerThread.run(ServerThread.java:99)

Please provide any additional information below.
I don´t know which plugin cause problem but MobileAdmin ist called so I ask you :)

Found a solution: If you delete your config-file it works with newer builds of CraftBukkit.

Thx, can be closed