public void testEquals_containingNullKey() {
    Collection<Entry<K, V>> entries = getSampleEntries(getNumEntries() - 1);
    entries.add(entry(null, v3()));

    resetContainer(getSubjectGenerator().create(entries.toArray()));
    assertTrue(
        "A Map should equal any other Map containing the same entries,"
            + " even if some keys are null.",
        getMap().equals(newHashMap(entries)));
  }

    @Override
    public boolean retainAll(Collection<?> collection) {
      return standardRetainAll(collection);
    }

    @Override
    public Object[] toArray() {
      return standardToArray();
    }

    @Override
    public <T> T[] toArray(T[] array) {
      return standardToArray(array);
    }

    @Override
    public String toString() {
      return standardToString();
    }

                    type.getLanguage(),
                    type.getExtension(),
                    type.getClassifier(),
                    type.isIncludesDependencies(),
                    type.getPathTypes().toArray(new PathType[0]));
        }
        return null;
    }

                    return matcher.group(3);
                }
            } else if (v == version) {
                return matcher.group(3);
            }
            return null;
        }).filter(s -> s != null).toArray(n -> new String[n]);
    }

    public static int getJavaVersion() {
        final String javaVersion = System.getProperty("java.version");
        int version = 8;
        if (javaVersion != null) {

  public void testEqualsSameContents() {
    new EqualsTester()
        .addEqualityGroup(
            getMultiset(), getSubjectGenerator().create(getSampleElements().toArray()))
        .testEquals();
  }

  @CollectionSize.Require(absent = ZERO)
  public void testNotEqualsEmpty() {
    new EqualsTester()
        .addEqualityGroup(getMultiset())

        super(indexSettings, name, settings);

        final List<String> wordList = Analysis.parseWordList(environment, settings, "stopwords", s -> s);
        if (wordList != null) {
            stopwords = wordList.toArray(new String[wordList.size()]);
        } else {
            stopwords = new String[0];
        }

        ignoreCase = settings.getAsBoolean("ignore_case", Boolean.FALSE).booleanValue();
        if (ignoreCase) {

        .testEquals();
  }

  public void testEqualsFalse() {
    List<Entry<K, V>> targetEntries = new ArrayList<>(getSampleElements());
    targetEntries.add(mapEntry(k0(), v3()));
    new EqualsTester()
        .addEqualityGroup(multimap())
        .addEqualityGroup(getSubjectGenerator().create(targetEntries.toArray()))
        .testEquals();
  }

        super(indexSettings, name, settings);

        final List<String> wordList = Analysis.parseWordList(environment, settings, "stopwords", s -> s);
        if (wordList != null) {
            stopwords = wordList.toArray(new String[wordList.size()]);
        } else {
            stopwords = new String[0];
        }

        ignoreCase = settings.getAsBoolean("ignore_case", Boolean.FALSE).booleanValue();
        if (ignoreCase) {

    }

    @Override
    public int size() {
      return standardSize();
    }

    @Override
    public Object[] toArray() {
      return standardToArray();
    }

    @Override
    public <T> T[] toArray(T[] array) {
      return standardToArray(array);
    }
  }

  public static Test suite() {
    TestSuite suite = new TestSuite();

        final String[] loggerNames = loggerNamePrefix != null
                ? Arrays.stream(loggerNamePrefix.split(",")).map(String::trim).filter(s -> s.length() > 0).toArray(n -> new String[n])
                : new String[0];
        return new ErrorToWarnRewritePolicy(loggerNames);
    }