java - Mockito: InvalidUseOfMatchersException - Stack Overflow

java - Mockito: InvalidUseOfMatchersException - Stack Overflow

The error message outlines the solution pretty clearly. The line

doNothing().when(cmd).dnsCheck(HOST, any(InetAddressFactory.class))

uses one raw value and one matcher, when it's required to use either all raw values or all matchers. A correct version might read

doNothing().when(cmd).dnsCheck(eq(HOST), any(InetAddressFactory.class))

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