)
  private val taskRunner = TaskRunner(taskRunnerBackend)
  private val requestQueue = LinkedBlockingQueue<RecordedRequest>()
  private val openClientSockets =
    Collections.newSetFromMap(ConcurrentHashMap<Socket, Boolean>())
  private val openConnections =
    Collections.newSetFromMap(ConcurrentHashMap<Http2Connection, Boolean>())

  private val atomicRequestCount = AtomicInteger()

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.script.groovy;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

 */
package org.codelibs.fess.crawler;

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

import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.Serializable;
import java.util.Arrays;
import java.util.BitSet;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.EnumMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.Spliterator;

import com.google.errorprone.annotations.InlineMe;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.RandomAccess;
import java.util.Spliterator;
import java.util.function.Consumer;

import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static com.google.common.collect.testing.testers.ReflectionFreeAssertThrows.assertThrows;
import static java.util.Collections.singletonList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;

  /**
   * Creates a scheduled executor service that runs each task in the thread that invokes {@code
   * execute/submit/schedule}, as in {@link CallerRunsPolicy}. This applies both to individually
   * submitted tasks and to collections of tasks submitted via {@code invokeAll}, {@code invokeAny},
   * {@code schedule}, {@code scheduleAtFixedRate}, and {@code scheduleWithFixedDelay}. In the case

        };
      }

      @Override
      public Object[] toArray() {
        /*
         * standardToArray returns `@Nullable Object[]` rather than `Object[]` but only because it
         * can be used with collections that may contain null. This collection is a collection of
         * non-null Entry objects (Entry objects that might contain null values but are not
         * themselves null), so we can treat it as a plain `Object[]`.

import java.io.ObjectInputStream;
import java.io.Serializable;
import java.util.AbstractMap;
import java.util.Arrays;
import java.util.BitSet;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.SortedMap;

import com.google.common.primitives.Ints;
import java.util.Arrays;
import java.util.Objects;
import org.jspecify.annotations.Nullable;

/**
 * Helper classes and static methods for implementing compact hash-based collections.
 *
 * @author Jon Noack
 */
@GwtIncompatible
final class CompactHashing {
  private CompactHashing() {}

  /** Indicates blank table entries. */
  static final byte UNSET = 0;