Jaas sample progrma in weblogic 6.1 giving the following error java.lang.SecurityException: attempting to add an object which is not an instance of java.security.Principal to a Subjec

Question

jaas sample progrma in weblogic 6.1 giving the following error java.lang.SecurityException:
attempting to add an object which is not an instance of java.security.Principal
to a Subjec
on runnig the program during the call of method Authenticate.authenticate(env,
subject); giving following exceptions Error: Login Exception on authenticate,
java.lang.SecurityException: attempting to add an object which is not an instance
of java.security.Principal to a Subjec t's Principal Set Authentication Failed:
Unexpected Exception, javax.security.auth.login.LoginExce ption: java.lang.SecurityException:
attempting to add an object which is not an instance of java.security.Principal
to a Subject's Principal Set javax.security.auth.login.LoginException: javax.security.auth.login.LoginExcepti
on: java.lang.SecurityException: attempting to add an object which is not an ins
tance of java.security.Principal to a Subject's Principal Set at examples.security.jaas.SampleLoginModule.login(SampleLoginModule.java
:192) at java.lang.reflect.Method.invoke(Native Method) at javax.security.auth.login.LoginContext.invoke(LoginContext.java:595)
at javax.security.auth.login.LoginContext.access$000(LoginContext.java:1 25) at
javax.security.auth.login.LoginContext$3.run(LoginContext.java:531) at java.security.AccessController.doPrivileged(Native
Method) at javax.security.auth.login.LoginContext.invokeModule(LoginContext.java
:528) at javax.security.auth.login.LoginContext.login(LoginContext.java:449) at
examples.security.jaas.SampleClient.main(SampleClient.java:96)
1)what is the reason for this problem
2)in weblogic document they told to edit server.policy file in webligic\lib folder
a)what the modification is needed in this file..?

Answer 1

Hi jerry
i already got that problem solved by removing jaas.jar file
from class path.
i don'nt how it is working with out in classpath...?
Jerry <[email protected]> wrote:
Hi Nivas,
I think that the problem you are seeing has something to do with the
placement of jaas.jar in your classpath
On WebLogic server, put jaas.jar in the classpath after weblogic.jar.
I would bet that you have it placed before weblogic.jar right now.
I don't think the exception that you're seeing right now has anything
to do with your weblogic.policy file right now, so I think it is
safe to not worry about it right now.
Hope this helps,
Joe Jerry