collect(result, c)
        return result
    }

    private void collect(Set<CtMethod> result, CtClass c) {
        if (c == null) {
            return
        }

        result.addAll(c.declaredMethods.findAll { isPublicApi(it) })

        collect(result, c.superclass)
    }

    private boolean isPublicApi(CtMethod method) {

  public void testAddAll_supportedNothing() {
    assertFalse("addAll(nothing) should return false", collection.addAll(emptyCollection()));
    expectUnchanged();
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  public void testAddAll_unsupportedNothing() {
    try {
      assertFalse(
          "addAll(nothing) should return false or throw", collection.addAll(emptyCollection()));

        UnsupportedOperationException.class, () -> getList().addAll(0, MinimalCollection.of(e0())));
    expectUnchanged();
  }

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)
  @CollectionSize.Require(absent = ZERO)
  public void testAddAllAtIndex_supportedSomePresent() {
    assertTrue(
        "addAll(n, allPresent) should return true",
        getList().addAll(0, MinimalCollection.of(e0(), e3())));
    expectAdded(0, e0(), e3());

  public void testAddAll_supportedNothing() {
    assertFalse("addAll(nothing) should return false", collection.addAll(emptyCollection()));
    expectUnchanged();
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  public void testAddAll_unsupportedNothing() {
    try {
      assertFalse(
          "addAll(nothing) should return false or throw", collection.addAll(emptyCollection()));

                    root_name, error.message
                )
            )

    def findall(self, name):
        """Similar to ElementTree.Element.findall()

        """
        return [
            STSElement(self.root_name, elem)
            for elem in self.element.findall('sts:{}'.format(name), _STS_NS)
        ]

    def find(self, name):
        """Similar to ElementTree.Element.find()

        UnsupportedOperationException.class, () -> getList().addAll(0, MinimalCollection.of(e0())));
    expectUnchanged();
  }

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)
  @CollectionSize.Require(absent = ZERO)
  public void testAddAllAtIndex_supportedSomePresent() {
    assertTrue(
        "addAll(n, allPresent) should return true",
        getList().addAll(0, MinimalCollection.of(e0(), e3())));
    expectAdded(0, e0(), e3());

        final Set<String> merged = new LinkedHashSet<>();

        if (array1 != null) {
            Collections.addAll(merged, array1);
        }

        if (array2 != null) {
            Collections.addAll(merged, array2);
        }

        return merged.toArray(new String[merged.size()]);
    }

    /**
     * Merges two Kind arrays, maintaining uniqueness.

    def transformWebsiteLinks(Document doc) {
        findAll(doc, 'ulink').each { Element element ->
            String url = element.'@url'
            if (url.startsWith('website:')) {
                url = url.substring(8)
                url = "${websiteUrl.get()}/${url}"
                element.setAttribute('url', url)
            }
        }
    }

    static def findAll(Document doc, String byName) {

      super.addAll(elements);
      return this;
    }

    @CanIgnoreReturnValue
    Builder<E> combine(Builder<E> builder) {
      contents.addAll(builder.contents);
      return this;
    }

    @Override
    public ImmutableSet<E> build() {
      return copyOf(contents.iterator());
    }
  }

    assertTrue(
        "add(somePresent) should return true", getSet().addAll(MinimalCollection.of(e3(), e0())));
    expectAdded(e3());
  }

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testAddAll_withDuplicates() {
    MinimalCollection<E> elementsToAdd = MinimalCollection.of(e3(), e4(), e3(), e4());
    assertTrue("add(hasDuplicates) should return true", getSet().addAll(elementsToAdd));
    expectAdded(e3(), e4());
  }