Auth problems with customized DB

hi,

i have little problems to cinfigure the openfire.xml to authentificate with a customized DB. following the instructions of the documentation part “Custom Database Integration Guide”, here the result:

(XMPPServer.java:148)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at java.lang.Class.newInstance0(Unknown Source)

at java.lang.Class.newInstance(Unknown Source)

at org.jivesoftware.openfire.starter.ServerStarter.start(ServerStarter.java:93)

at org.jivesoftware.openfire.starter.ServerStarter.main(ServerStarter.java:49)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)

at com.exe4j.runtime.WinLauncher.main(Unknown Source)

and yes, there is an admin account in the db table!

is there anybody who can help me?

greetz

cultist