Abstract Login module won't deploy

Hello,

I'm using the SAP Web AS 640 tech preview and trying to get a login module to deploy that extends AbstractLoginModule.

To extend the AbstractLoginModule, I need to add a jar to my library build path...having done a search in the C:\Program Files\SAP\JDT\eclipse\plugins, the three jars I have a choice out of are:

sapj2eeclient.jar

sapj2eenginedeploy.jar

security_api.jar

using any of these jars the deploy aborts.

which jar should I be using to use to extend AbstractLoginModule?

the info about the aborting is...

May 18, 2004 4:10:45 PM /userOut/deploy (com.sap.ide.eclipse.sdm.threading.DeployThreadManager) [Deploy Thread] ERROR:

CalculatorEar.ear -> Deployment aborted

DEPLOYMENT ...

==> SDM host : tfsapwas640

==> SDM port : 50018

==> URL : file:/C:/DOCUME_1/ADMINI1/LOCALS~1/Temp/temp62807CalculatorEar.ear

... ABORTED

Execution of deployment action for "CalculatorEar" aborted:

Caught exception during application deployment from SAP J2EE Engine's deploy service:

java.rmi.RemoteException: Cannot deploy application sap.com/CalculatorEar.. Reason: Unexpected exception occurred during generation of components of application sap.com/CalculatorEar in container servlet_jsp.; nested exception is: com.sap.engine.services.deploy.exceptions.ServerDeploymentException: Unexpected exception occurred during generation of components of application sap.com/CalculatorEar in container servlet_jsp.

(message ID: com.sap.sdm.serverext.servertype.inqmy.extern.EngineApplOnlineDeployerImpl.performAction(DeploymentActionTypes).REMEXC)

Any ideas?