### Question:
PolicyResolver implements PolicyValidatorRegistry, AutoCloseable { @Override public void close() { if (tenantChangeListener != null) { tenantChangeListener.close(); } } PolicyResolver(DataBroker dataProvider); @Override void close(); @Override void register(ActionDefinitionId actionDefinitionId, Validator<ActionInstance> validator); @Override void unregister(ActionDefinitionId actionDefinitionId, Validator<ActionInstance> validator); @Override void register(ClassifierDefinitionId classifierDefinitionId, Validator<ClassifierInstance> validator); @Override void unregister(ClassifierDefinitionId classifierDefinitionId, Validator<ClassifierInstance> validator);  }### Answer:
@Test public void testConstructor() throws Exception { PolicyResolver other = new PolicyResolver(dataProvider); other.close(); }