Spring WS Security 2.2.4

I have recently upgraded spring ws module 2.2.0 to 2.2.4 along with spring ws security module to 2.2.4 from 2.0.2.

For callback handler I was using SpringPlainTextPasswordValidationCallbackHandler class injecting spring security authentication manager.

Turns out that SpringPlainTextPasswordValidationCallbackHandler class is removed in spring-ws-security module 2.2.4 which is causing bit of grief in terms of compilation. Which callback handler should I use so that the web service can authenticate properly. The .NET client is sending the username and password in plain text on HTTPS. Should I use callbacks from xwss implementation? Any sort of help is very much appreciated.