public SecretStore load(SecureConfig secureConfig) {
        return doIt(MODE.LOAD, secureConfig);
    }
@Test
    public void testAlternativeImplementationInvalid() {
        SecureConfig secureConfig = new SecureConfig();
        secureConfig.add("keystore.classname", "junk".toCharArray());

        assertThrows(SecretStoreException.ImplementationNotFoundException.class, () -> {
            secretStoreFactory.load(secureConfig);
        });
    }