OAM ASDK Authentication ERROR retrieval

Hi,

i've got an application using ASDK, authenticating using a custom Authentication Plugin.

I case of authentication failure, i need to inform the application about the cause of the failure but i'vent been able so far.

Whatever error i set in the Auth Plugin, the only error message i get on the ASDK are:

getStatus() : 3

getError() : 103

oracle.security.am.asdk.BaseUserSession getErrorMessage

getErrorMessage() :  User wrong password

Any help ?

Thanks,

Chris.