Iterator<String> iterator = singletonList("foo").iterator();
    assertEquals("foo", Iterators.getNext(iterator, "bar"));
  }

  public void testGetNext_withDefault_empty() {
    Iterator<String> iterator = emptyIterator();
    assertEquals("bar", Iterators.getNext(iterator, "bar"));
  }

  public void testGetNext_withDefault_empty_null() {

	github.com/beorn7/perks v1.0.1 // indirect
	github.com/blang/semver/v4 v4.0.0 // indirect
	github.com/census-instrumentation/opencensus-proto v0.4.1 // indirect
	github.com/chai2010/gettext-go v1.0.2 // indirect
	github.com/containerd/stargz-snapshotter/estargz v0.15.1 // indirect
	github.com/containerd/typeurl/v2 v2.2.0 // indirect
	github.com/cpuguy83/go-md2man/v2 v2.0.4 // indirect

        }
        return params;
    }

    protected ExtractData getExtractData(final Extractor extractor, final InputStream in, final Map<String, String> params) {
        try {
            return extractor.getText(in, params);
        } catch (final RuntimeException e) {
            if (!fessConfig.isCrawlerIgnoreContentException()) {
                throw e;
            }
            if (logger.isDebugEnabled()) {

        this.overrideTimeout = overrideTimeout;
    }


    /**
     * 
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockRequest#getNext()
     */
    @Override
    public ServerMessageBlock getNext () {
        return null;
    }


    /**
     * {@inheritDoc}
     *

         */
        public E getElement() {
            return element;
        }

        /**
         * 次のエントリを返します。
         *
         * @return 次のエントリ
         */
        public Entry getNext() {
            if (next != SLinkedList.this.header) {
                return next;
            }
            return null;
        }

        /**
         * 前のエントリを返します。
         *

  @GwtIncompatible // NavigableSet
  @Override
  @CheckForNull
  public E lower(E e) {
    return Iterators.<@Nullable E>getNext(headSet(e, false).descendingIterator(), null);
  }

  /** @since 12.0 */
  @Override
  @CheckForNull
  public E floor(E e) {
    return Iterators.<@Nullable E>getNext(headSet(e, true).descendingIterator(), null);
  }

  /** @since 12.0 */
  @Override
  @CheckForNull

            while ( chain != null ) {
                n++;
                int size = chain.size();
                int cost = chain.getCreditCost();
                CommonServerMessageBlockRequest next = chain.getNext();
                if ( log.isTraceEnabled() ) {
                    log.trace(
                        String.format("%s costs %d avail %d (%s)", chain.getClass().getName(), cost, this.credits.availablePermits(), this.name));

            return this.next.chain(n);
        }

        n.addFlags(SMB2_FLAGS_RELATED_OPERATIONS);
        this.next = n;
        return true;
    }


    protected ServerMessageBlock2 getNext () {
        return this.next;
    }


    protected void setNext ( ServerMessageBlock2 n ) {
        this.next = n;
    }


    /**
     * @return the response
     */

                    if (!first) {
                        buf.append(',');
                    }
                    first = false;

                    buf.append("{\"text\":\"").append(StringEscapeUtils.escapeJson(item.getText())).append('\"');
                    buf.append(",\"labels\":[");
                    for (int i = 0; i < item.getTags().length; i++) {
                        if (i > 0) {
                            buf.append(',');

  @GwtIncompatible // NavigableSet
  @Override
  @CheckForNull
  public E lower(E e) {
    return Iterators.<@Nullable E>getNext(headSet(e, false).descendingIterator(), null);
  }

  /** @since 12.0 */
  @Override
  @CheckForNull
  public E floor(E e) {
    return Iterators.<@Nullable E>getNext(headSet(e, true).descendingIterator(), null);
  }

  /** @since 12.0 */
  @Override
  @CheckForNull