assertEquals("[]", COMMA_SPLITTER.split("").toString());
    assertEquals("[a, b, c]", COMMA_SPLITTER.split("a,b,c").toString());
    assertEquals("[yam, bam, jam, ham]", Splitter.on(", ").split("yam, bam, jam, ham").toString());
  }

  public void testCharacterSimpleSplitWithNoDelimiter() {
    String simple = "a,b,c";
    Iterable<String> letters = Splitter.on('.').split(simple);

   * {@link #splitToList(CharSequence)}.
   *
   * @param sequence the sequence of characters to split
   * @return an iteration over the segments split from the parameter
   */
  public Iterable<String> split(final CharSequence sequence) {
    checkNotNull(sequence);

    return new Iterable<String>() {
      @Override
      public Iterator<String> iterator() {

    assertEquals("[]", COMMA_SPLITTER.split("").toString());
    assertEquals("[a, b, c]", COMMA_SPLITTER.split("a,b,c").toString());
    assertEquals("[yam, bam, jam, ham]", Splitter.on(", ").split("yam, bam, jam, ham").toString());
  }

  public void testCharacterSimpleSplitWithNoDelimiter() {
    String simple = "a,b,c";
    Iterable<String> letters = Splitter.on('.').split(simple);
    assertThat(letters).containsExactly("a,b,c").inOrder();
  }

        if (params == null) {
            params = split(getCrawlerMetadataNameMapping(), "\n").get(stream -> stream.filter(StringUtil::isNotBlank).map(v -> {
                final String[] values = v.split("=");
                if (values.length == 2) {
                    final String[] subValues = values[1].split(":", 3);
                    if (subValues.length == 3) {

   * {@link #splitToList(CharSequence)}. Java 8+ users may prefer {@link #splitToStream} instead.
   *
   * @param sequence the sequence of characters to split
   * @return an iteration over the segments split from the parameter
   */
  public Iterable<String> split(final CharSequence sequence) {
    checkNotNull(sequence);

    return new Iterable<String>() {
      @Override
      public Iterator<String> iterator() {

		},
		{ // clusters invalid
			args:           strings.Split("clusters invalid", " "),
			expectedString: "unable to retrieve Pod: pods \"invalid\" not found",
			wantException:  true, // "istioctl proxy-config clusters invalid" should fail
		},
		{ // listeners invalid
			args:           strings.Split("listeners invalid", " "),
			expectedString: "unable to retrieve Pod: pods \"invalid\" not found",

                final StringBuilder buf = new StringBuilder(100);
                char split = 0;
                for (final String path : includedPaths.split("\n")) {
                    if (split == 0) {
                        split = '|';
                    } else {
                        buf.append(split);
                    }
                    final String normalizePath = systemHelper.normalizeConfigPath(path);

			args:             strings.Split("--generation=2 --timeout=20ms virtual-service foo.default", " "),
			wantException:    true,
		},
		{
			execClientConfig: cannedResponseMap,
			args:             strings.Split("--generation=1 virtual-service foo.default", " "),
			wantException:    false,
		},
		{
			execClientConfig: cannedResponseMap,
			args:             strings.Split("--generation=1 VirtualService foo.default", " "),

        }
        fessConfig = ComponentUtil.getFessConfig();
        split(fessConfig.getSuggestFieldContents(), ",")
                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(contentFieldNameSet::add));
        split(fessConfig.getSuggestFieldTags(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(tagFieldNameSet::add));

        int version = 8;
        if (javaVersion != null) {
            final String[] split = javaVersion.split("[\\._]");
            if (split.length > 0) {
                version = Integer.parseInt(split[0]);
                if (version == 1 && split.length > 1) {
                    version = Integer.parseInt(split[1]);
                }
            }
        }
        return version;
    }