TestByteSink okSink = new TestByteSink();
      assertThrows(IOException.class, () -> failSource.copyTo(okSink));
      // ensure stream was closed IF it was opened (depends on implementation whether or not it's
      // opened at all if source.newInputStream() throws).
      assertTrue(
          "stream not closed when copying from source with option: " + option,
          !okSink.wasStreamOpened() || okSink.wasStreamClosed());
    }
  }

      TestByteSink okSink = new TestByteSink();
      assertThrows(IOException.class, () -> failSource.copyTo(okSink));
      // ensure stream was closed IF it was opened (depends on implementation whether or not it's
      // opened at all if source.newInputStream() throws).
      assertTrue(
          "stream not closed when copying from source with option: " + option,
          !okSink.wasStreamOpened() || okSink.wasStreamClosed());
    }
  }

 * well.
 *
 * <h3>Java 8+ users</h3>
 *
 * <p>If you are using Java 8+, this class is now obsolete. Most of its functionality is now
 * provided by {@link java.util.stream.Stream Stream} and by {@link Comparator} itself, and the rest
 * can now be found as static methods in our new {@link Comparators} class. See each method below

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.repository.metadata.io.xpp3;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;

import org.apache.maven.artifact.repository.metadata.Metadata;

import java.util.List;
import java.util.Map;
import java.util.Objects;

import org.apache.lucene.search.Query;
import org.opensearch.core.ParseField;
import org.opensearch.core.common.io.stream.NamedWriteable;
import org.opensearch.core.common.io.stream.StreamOutput;
import org.opensearch.core.xcontent.ObjectParser;
import org.opensearch.core.xcontent.XContentBuilder;
import org.opensearch.core.xcontent.XContentParser;

 */
package org.codelibs.fess.app.web.api.admin.boostdoc;

import static org.codelibs.fess.app.web.admin.boostdoc.AdminBoostdocAction.getBoostDocumentRule;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.CopyOptions;
import org.codelibs.fess.app.pager.BoostDocPager;

import static org.codelibs.fess.app.web.admin.group.AdminGroupAction.getGroup;
import static org.codelibs.fess.app.web.admin.group.AdminGroupAction.validateAttributes;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.GroupPager;
import org.codelibs.fess.app.service.GroupService;

import org.gradle.kotlin.dsl.provider.KotlinScriptClassPathProvider;

import javax.inject.Inject;
import java.io.File;

import static com.google.common.collect.Iterables.getOnlyElement;
import static java.util.stream.Collectors.toList;

/**
 * Extracts Kotlin DSL runtime generated sources.
 *
 * Current implementation extracts these from the wrapper's API jars.

    asCharSink(to, charset).write(from);
  }

  /**
   * Copies all bytes from a file to an output stream.
   *
   * <p><b>{@link java.nio.file.Path} equivalent:</b> {@link
   * java.nio.file.Files#copy(java.nio.file.Path, OutputStream)}.
   *
   * @param from the source file
   * @param to the output stream
   * @throws IOException if an I/O error occurs
   */

	m.respWait = out
}

// RequestStream will send a single payload request and stream back results.
// 'requests' can be nil, in which case only req is sent as input.
// It will however take less resources.
func (m *muxClient) RequestStream(h HandlerID, payload []byte, requests chan []byte, responses chan Response) (*Stream, error) {
	if m.init {
		return nil, errors.New("mux client already used")
	}