Detail exceptions in JAASLoginInInterceptor (patch)
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                 Key: CXF-3873
                 URL: https://issues.apache.org/jira/browse/CXF-3873
             Project: CXF
          Issue Type: Improvement
          Components: Core
    Affects Versions: 2.5
         Environment: Windows
            Reporter: Andrei Shakirin
         Attachments: SAAJOutInterceptor-patch.java

Hi,
I find one thing in JAASLoginInInterceptor a little bit dangerous from security 
perspective - exception handling.
JAASLoginInInterceptor throws different exceptions with detail error messages 
in cases:
- if user/password are not defined (SecurityException: NO_USER_PASSWORD)
- and if authentication is failed (AuthenticationException: "Unauthorized : " + 
ex.getMessage())
It is very practical for the development, but can give some advices to 
malicious application.
I will prefere to throw generic security violation exception for both cases.

Patch is attached

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