assertEquals(user1, chain.loadCalls.get(0));
        assertEquals(user2, chain.loadCalls.get(1));
    }

    // Test load with exception
    public void test_load_withException() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.loadThrowsException = true;
        User user = createTestUser("testuser", "Test User");

        try {