Mockito: Invalideuseofmatchersexception

J'ai un outil de ligne de commande qui effectue une vérification DNS. Si la vérification DNS réussit, la commande continue avec d'autres tâches. J'essaie d'écrire des tests unitaires pour cela en utilisant Mockito. Voici mon code:

public class Command() {
    // ....
    void runCommand() {
        // ..
        dnsCheck(hostname, new InetAddressFactory());
        // ..
        // do other stuff after dnsCheck
    }

    void dnsCheck(String hostname, InetAddressFactory factory) {
        // calls to verify hostname
    }
}

J'utilise InetAddressFactory pour simuler une implémentation statique de la classe InetAddress. Voici le code de l'usine:

public class InetAddressFactory {
    public InetAddress getByName(String host) throws UnknownHostException {
        return InetAddress.getByName(host);
    }
}

Voici mon cas de test unitaire:

@RunWith(MockitoJUnitRunner.class)
public class CmdTest {

    // many functional tests for dnsCheck

    // here's the piece of code that is failing
    // in this test I want to test the rest of the code (i.e. after dnsCheck)
    @Test
    void testPostDnsCheck() {
        final Cmd cmd = spy(new Cmd());

        // this line does not work, and it throws the exception below:
        // tried using (InetAddressFactory) anyObject()
        doNothing().when(cmd).dnsCheck(HOST, any(InetAddressFactory.class));
        cmd.runCommand();
    }
}

Exception lors de l'exécution du test testPostDnsCheck():

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: 
Invalid use of argument matchers!
2 matchers expected, 1 recorded.
This exception may occur if matchers are combined with raw values:
    //incorrect:
    someMethod(anyObject(), "raw String");
When using matchers, all arguments have to be provided by matchers.
For example:
    //correct:
    someMethod(anyObject(), eq("String by matcher"));

Toute entrée sur la façon de résoudre ce problème?