}
    }
    OptionalState state = new OptionalState();

    Deque<Spliterator<T>> splits = new ArrayDeque<>();
    splits.addLast(stream.spliterator());

    while (!splits.isEmpty()) {
      Spliterator<T> spliterator = splits.removeLast();

      if (spliterator.getExactSizeIfKnown() == 0) {
        continue; // drop this split
      }

        }
        return new String(buf);
    }

    /**
     * Splits the string by the specified delimiter.
     *
     * @param str
     *            the string to split
     * @param delim
     *            the delimiter to use for splitting
     * @return an array of split strings
     */
    public static String[] split(final String str, final String delim) {
        if (isEmpty(str)) {

    use chunked encoding. This is different from an empty list - that indicates the request is
    chunked but has no data.

 *  Breaking: Replace `SocketPolicy` with a new type, `SocketEffect`. It splits triggers (request
    start, response body, etc.) from effects (closing the socket, closing the stream, etc.).

 *  Breaking: Rename `RecordedRequest.sequenceNumber` to `exchangeIndex` and introduce

        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) {

            final String[] parts = ipv6Address.split("::");
            final String leftPart = parts.length > 0 && !parts[0].isEmpty() ? parts[0] : "";
            final String rightPart = parts.length > 1 && !parts[1].isEmpty() ? parts[1] : "";
            final int leftCount = leftPart.isEmpty() ? 0 : leftPart.split(":").length;
            final int rightCount = rightPart.isEmpty() ? 0 : rightPart.split(":").length;

                final List<String> sides = split(line, "=>");
                if (sides.size() > 1) { // explicit mapping
                    if (sides.size() != 2) {
                        throw new DictionaryException("more than one explicit mapping specified on the same line");
                    }
                    final List<String> inputStrings = split(sides.get(0), ",");

        }
        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));

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.util;

import static org.codelibs.core.stream.StreamUtil.split;

import java.util.Objects;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.lang3.StringUtils;
import org.codelibs.core.lang.StringUtil;

                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);

        if (StringUtil.isBlank(value)) {
            defaultResponseHeaders = Collections.emptyList();
            return;
        }

        StreamUtil.split(value, "\n").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(s -> {
            final String[] values = StringUtils.split(s, "=", 2);
            List<Pair<String, String>> list = responseHeaderMap.get(values[0]);
            if (list == null) {
                list = new ArrayList<>();