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Q39 Single choice

A developer obtains a Java, security. Principal object by calling the SessionContext.getCallerPrincipal method from within a business method of a session bean.

Which statement is true?

A
The returned Principal object can be null.
B
The roles which the Principal is in can be determined from this Principal object.
C
The return value of Principal. getName depends on the security realm which was used to authenticate
thecaller.
D
The return value of the Principal. getName method is exactly the same as the username used for authentication of the caller.

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