import java.util.AbstractMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import static gradlebuild.binarycompatibility.upgrades.UpgradedProperties.CURRENT_ACCESSORS_OF_UPGRADED_PROPERTIES;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.relatedquery;

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

import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.BeanUtil;

    @Nonnull
    Optional<Path> rootDirectory();

    /**
     * Returns the input stream for the Maven execution, if running in embedded mode.
     *
     * @return an {@link Optional} containing the input stream, or empty if not applicable
     */
    @Nonnull
    Optional<InputStream> in();

    /**
     * Returns the output stream for the Maven execution, if running in embedded mode.
     *

 *
 * ## Connection Reuse
 *
 * Each connection can carry a varying number of streams, depending on the underlying protocol being
 * used. HTTP/1.x connections can carry either zero or one streams. HTTP/2 connections can carry any
 * number of streams, dynamically configured with `SETTINGS_MAX_CONCURRENT_STREAMS`. A connection
 * currently carrying zero streams is an idle stream. We keep it alive because reusing an existing

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.dict;

import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.dict.DictionaryFile;

#### Framed protocols

Framed protocols like http/2 don't lend themselves to blocking APIs. Each application-layer thread wants to do blocking I/O for a specific stream, but the streams are multiplexed on the socket. You can't just talk to the socket, you need to cooperate with the other application-layer threads that you're sharing it with.

  private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();
    Serialization.writeMultimap(this, stream);
  }

  @GwtIncompatible // java.io.ObjectInputStream
  @J2ktIncompatible
  private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
    stream.defaultReadObject();
    int keyCount = stream.readInt();
    if (keyCount < 0) {

        final Reader rd = new StringReader(inputStr);
        try (TokenStream stream = createTokenStream(rd)) {
            if (stream == null) {
                throw new IOException("Invalid tokenizer.");
            }
            stream.reset();

            int offset = 0;
            while (stream.incrementToken()) {
                final CharTermAttribute att = stream.getAttribute(CharTermAttribute.class);

   *     helpful predefined constants
   * @return a string containing all the characters from the URL
   * @throws IOException if an I/O error occurs.
   */
  public static String toString(URL url, Charset charset) throws IOException {
    return asCharSource(url, charset).read();
  }

  /**

            }
        }
        form.fields.entrySet().stream().filter(e -> e.getValue() != null).forEach(e -> {
            final String key = LaFunctions.u(e.getKey());
            stream(e.getValue()).of(stream -> stream.filter(StringUtil::isNotBlank)
                    .forEach(s -> pagingQueryList.add("fields." + key + "=" + LaFunctions.u(s))));
        });
        form.as.entrySet().stream().filter(e -> e.getValue() != null).forEach(e -> {