host, err := xnet.ParseHost(serverAddr)
	if err != nil {
		return config.ErrInvalidAddressFlag(err)
	}

	// 0.0.0.0 is a wildcard address and refers to local network
	// addresses. I.e, 0.0.0.0:9000 like ":9000" refers to port
	// 9000 on localhost.
	if host.Name != "" && host.Name != net.IPv4zero.String() && host.Name != net.IPv6zero.String() {

import com.google.common.collect.testing.testers.MapEntrySetTester;
import com.google.common.collect.testing.testers.MapEqualsTester;
import com.google.common.collect.testing.testers.MapForEachTester;
import com.google.common.collect.testing.testers.MapGetOrDefaultTester;
import com.google.common.collect.testing.testers.MapGetTester;
import com.google.common.collect.testing.testers.MapHashCodeTester;

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
    testers.add(SortedSetNavigationTester.class);
    return testers;
  }

  @Override
  public TestSuite createTestSuite() {
    if (!getFeatures().contains(CollectionFeature.KNOWN_ORDER)) {

  // be one of the following values:
  // * Exact: Matches the URL path exactly.
  // * Prefix: Matches based on a URL path prefix split by '/'. Matching is
  //   done on a path element by element basis. A path element refers is the
  //   list of labels in the path split by the '/' separator. A request is a
  //   match for path p if every p is an element-wise prefix of p of the

    List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
    testers.add(CollectionSerializationEqualTester.class);
    testers.add(MultisetAddTester.class);
    testers.add(MultisetContainsTester.class);
    testers.add(MultisetCountTester.class);
    testers.add(MultisetElementSetTester.class);
    testers.add(MultisetEqualsTester.class);
    testers.add(MultisetForEachEntryTester.class);

But then the attackers try with username `stanleyjobsox` and password `love123`.

And your application code does something like:

```Python

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
    testers.add(SortedMapNavigationTester.class);
    return testers;
  }

  @Override
  public TestSuite createTestSuite() {
    if (!getFeatures().contains(KNOWN_ORDER)) {

    List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
    testers.add(ListMultimapAsMapTester.class);
    testers.add(ListMultimapEqualsTester.class);
    testers.add(ListMultimapPutTester.class);
    testers.add(ListMultimapPutAllTester.class);
    testers.add(ListMultimapRemoveTester.class);
    testers.add(ListMultimapReplaceValuesTester.class);
    return testers;
  }

  @Override

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
    testers.add(NavigableMapNavigationTester.class);
    return testers;
  }

  @Override
  protected List<TestSuite> createDerivedSuites(
      FeatureSpecificTestSuiteBuilder<

    private final List<Class<? extends AbstractTester>> testers;

    @SuppressWarnings("rawtypes") // class literals
    public OneSizeTestSuiteBuilder(List<Class<? extends AbstractTester>> testers) {
      this.testers = testers;
    }

    @SuppressWarnings("rawtypes") // class literals
    @Override
    protected List<Class<? extends AbstractTester>> getTesters() {
      return testers;
    }
  }