auth1.secureWipePassword(); // Should not throw exception
        assertNull(auth1.getPassword());
    }

    /**
     * Test empty password handling
     */
    @Test
    public void testEmptyPasswordHandling() {
        // Test with empty String password
        NtlmPasswordAuthenticator auth1 = new NtlmPasswordAuthenticator("testuser", "");
        assertEquals("", auth1.getPassword());