public class NullJarScannerTest {
@Test
public void does_nothing() {
ServletContext context = mock(ServletContext.class);
ClassLoader classloader = mock(ClassLoader.class);
JarScannerCallback callback = mock(JarScannerCallback.class);
new NullJarScanner().scan(context, classloader, callback, new HashSet<String>());
verifyZeroInteractions(context, classloader, callback);
}