* governing permissions and limitations under the License.
 */
package org.codelibs.fess.ds.callback;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

import jakarta.annotation.PostConstruct;

   */
  @CanIgnoreReturnValue
  public <A extends Appendable> A appendTo(A appendable, Iterator<?> parts) throws IOException {
    checkNotNull(appendable);
    if (parts.hasNext()) {
      appendable.append(toString(parts.next()));
      while (parts.hasNext()) {
        appendable.append(separator);
        appendable.append(toString(parts.next()));
      }
    }
    return appendable;
  }

  /**

import com.google.common.collect.testing.testers.ListToArrayTester;
import com.google.common.testing.SerializableTester;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import junit.framework.TestSuite;

/**
 * Creates, based on your criteria, a JUnit test suite that exhaustively tests a List
 * implementation.
 *

      this.iterator = iterable.iterator();
    }

    @Override
    public boolean hasNext() {
      return true; // pretend that you have more...
    }

    @Override
    public E next() {
      // ...but throw an unchecked exception when you ask for it.
      if (!iterator.hasNext()) {
        throw new ThrowsAtEndException();
      }
      return iterator.next();
    }

   * forward to this implementation.
   */
  protected @Nullable Entry<E> standardFirstEntry() {
    Iterator<Entry<E>> entryIterator = entrySet().iterator();
    if (!entryIterator.hasNext()) {
      return null;
    }
    Entry<E> entry = entryIterator.next();
    return Multisets.immutableEntry(entry.getElement(), entry.getCount());
  }

  @Override

     */

      if (!dispatching.get()) {
        dispatching.set(true);
        try {
          Event nextEvent;
          while ((nextEvent = queueForThread.poll()) != null) {
            while (nextEvent.subscribers.hasNext()) {
              nextEvent.subscribers.next().dispatchEvent(nextEvent.event);
            }
          }
        } finally {
          dispatching.remove();
          queue.remove();
        }
      }

      public <E extends Comparable<E>> Set<E> create(Collection<E> contents) {
        return unmodifiableSet(new HashSet<E>(contents));
      }
    },
    SynchronizedSetImpl {
      @Override
      public <E extends Comparable<E>> Set<E> create(Collection<E> contents) {
        return synchronizedSet(new HashSet<E>(contents));
      }
    },
    ImmutableSetImpl {
      @Override

            this.locale = locale;
        }

        @Override
        public boolean hasNext() {
            return index < STYLES.length;
        }

        @Override
        public DateFormat next() {
            if (!hasNext()) {
                throw new NoSuchElementException();
            }
            final int style = STYLES[index++];

    public String toString() {
      return toString;
    }
  }

  Stimulus<E, Iterator<E>> hasNext =
      new Stimulus<E, Iterator<E>>("hasNext") {
        @Override
        void executeAndCompare(ListIterator<E> reference, Iterator<E> target) {
          assertEquals(reference.hasNext(), target.hasNext());
        }
      };
  Stimulus<E, Iterator<E>> next =
      new Stimulus<E, Iterator<E>>("next") {