Problem running the sample JAAS example provided

[Siddharth]

Hi

I am new to JAAS as well as to the WebLogic6.0 .While trying to run the
sample JAAS program provided with WLS i got the following error:

java examples.security.jaas.
SampleClient t3://localhost:7001
SampleLoginModule.initialize(), debug enabled
SampleLoginModule.initialize(), URL t3://localhost:7001
username: guest
password: guest
SampleLoginModule.login(), username guest
SampleLoginModule.login(), password guest
javax.naming.NameNotFoundException: Unable to resolve frobtarget. Resolved:
'' U
nresolved:'frobtarget' ; remaining name ''
at
weblogic.rmi.internal.AbstractOutboundRequest.sendReceive(AbstractOut
boundRequest.java:90)
at
weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteR
ef.java:247)
at
weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteR
ef.java:225)
at
weblogic.jndi.internal.ServerNamingNode_WLStub.lookup(ServerNamingNod
e_WLStub.java:121)
at
weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:323)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at examples.security.jaas.SampleAction.run(SampleAction.java:61)
at javax.security.auth.Subject.doAs(Subject.java:80)
at examples.security.jaas.SampleClient.main(SampleClient.java:121)
Failed to frob

can someone help me out in over coming this error.

regards
Siddharth