public void setAuthenticationTokenFactory(AuthenticationTokenFactory authenticationTokenFactory) {
        this.authenticationTokenFactory = authenticationTokenFactory;
    }
@Test
    public void testSetAuthenticationTokenFactory() {
        AuthenticationTokenFactory factory = new AuthenticationTokenFactory() {
            @Override
            public AuthenticationToken getAuthenticationToken(SubjectConnectionReference ref) throws Exception {
                return null;
            }
        };
        filter.setAuthenticationTokenFactory(factory);
        assertSame(factory, filter.getAuthenticationTokenFactory());
    }