*/
    public SingleValueIterator(final E value) {
        this.value = value;
    }

    @Override
    public boolean hasNext() {
        return hasNext;
    }

    @Override
    public E next() {
        if (!hasNext) {
            throw new NoSuchElementException();
        }
        hasNext = false;
        return value;
    }

    @Override
    public void remove() {

            Set<RequestData> childUrls = e.getChildUrlList();
            assertNotNull(childUrls);
            assertEquals(1, childUrls.size());

            RequestData requestData = childUrls.iterator().next();
            assertEquals("https://example.com/page1", requestData.getUrl());
        }
    }

    public void test_processMultipleSitemaps() {
        // Setup

     * @throws IOException if an I/O error occurs
     */
    protected abstract void makeKey(Request request) throws IOException;

    /**
     * Reads and returns the key of the next message without consuming it.
     *
     * @return the request key of the next message
     * @throws IOException if an I/O error occurs
     */
    protected abstract Request peekKey() throws IOException;

    /**

        vector.add("a");
        final EnumerationIterator<String> itr = new EnumerationIterator<String>(vector.elements());
        assertThat(itr.hasNext(), is(true));
        assertThat(itr.next(), is("a"));
        assertThat(itr.hasNext(), is(not(true)));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testRemove() throws Exception {

        throw new ClUnsupportedOperationException("remove");
    }

    @Override
    public boolean hasNext() {
        return enumeration.hasMoreElements();
    }

    @Override
    public T next() {
        return enumeration.nextElement();
    }

     */
    public ArrayIterator(final T... items) {
        this.items = items;
    }

    @Override
    public boolean hasNext() {
        return index < items.length;
    }

    @Override
    public T next() {
        try {
            final T o = items[index];
            index++;
            return o;
        } catch (final IndexOutOfBoundsException e) {
            throw new NoSuchElementException("index=" + index);

            di++;
            if (di == rn) {
                break;
            }

            dr.append(new DfsReferral());
            dr = dr.next;
        }

        return dr.next;
    }

    DfsReferral[] __getDfsReferrals(final NtlmPasswordAuthentication auth, final String path, int rn) throws SmbException {

        int bytesWritten = context.encode(buffer, 0);

        assertEquals(context.size(), bytesWritten);

        // Verify context header
        assertEquals(0, SMBUtil.readInt4(buffer, 0)); // Next
        assertEquals(16, SMBUtil.readInt2(buffer, 4)); // NameOffset
        assertEquals(4, SMBUtil.readInt2(buffer, 6)); // NameLength
        assertEquals(0, SMBUtil.readInt2(buffer, 8)); // Reserved

        this.classLoader = classLoader;
    }

    @Override
    public boolean hasNext() {
        return classLoader != null;
    }

    @Override
    public ClassLoader next() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        final ClassLoader result = classLoader;
        classLoader = classLoader.getParent();
        return result;
    }

                // care performance for List that the most frequent pattern
                final Object first = coll instanceof List<?> ? ((List<?>) coll).get(0) : coll.iterator().next();
                if (first instanceof Entity) {
                    data.register(key, coll.stream().map(BeanUtil::copyBeanToNewMap).collect(Collectors.toList()));
                    return;
                }
            }