public void addSubject(String name,Subject subject,boolean exclusive) throws NameAlreadyExistsException, InvalidNameException {
  users.addSubject(name,subject,exclusive);
}

public void addSubject ( String name , Subject subject , boolean exclusive ) throws NameAlreadyExistsException , InvalidNameException { users . addSubject ( name , subject , exclusive ) ; }
adds a new policy subject . the policy will apply to a user if he is a member of any normal ( non exclusive ) subject in the policy or not a member of any exclusive subject in the policy .
