*
   * @throws NullPointerException if this optional's value is absent and the supplier returns {@code
   *     null}
   */
  public abstract T or(Supplier<? extends T> supplier);

  /**
   * Returns the contained instance if it is present; {@code null} otherwise. If the instance is
   * known to be present, use {@link #get()} instead.
   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method is equivalent to Java 8's

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.opensearch.config.exentity;

import java.util.Map;
import java.util.function.Supplier;

import org.codelibs.fess.crawler.client.CrawlerClientFactory;

public class CrawlingConfigWrapper implements CrawlingConfig {

    private final CrawlingConfig crawlingConfig;

    static final int MAX_EXTRAS = 4;

    @Nullable T element;
    List<T> extras;
    final @Nullable Supplier<? extends RuntimeException> exceptionSupplier;

    ToOptionalState(@Nullable Supplier<? extends RuntimeException> exceptionSupplier) {
      this.element = null;
      this.extras = emptyList();
      this.exceptionSupplier = exceptionSupplier;
    }

import java.util.EnumMap;
import java.util.EnumSet;
import java.util.LinkedHashMap;
import java.util.TreeMap;
import java.util.function.BinaryOperator;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.function.ToIntFunction;
import java.util.stream.Collector;
import java.util.stream.Stream;
import org.jspecify.annotations.Nullable;

/** Collectors utilities for {@code common.collect} internals. */

import java.util.EnumMap;
import java.util.EnumSet;
import java.util.LinkedHashMap;
import java.util.TreeMap;
import java.util.function.BinaryOperator;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.function.ToIntFunction;
import java.util.stream.Collector;
import java.util.stream.Stream;
import org.jspecify.annotations.Nullable;

/** Collectors utilities for {@code common.collect} internals. */

import java.nio.file.Path;
import java.util.function.Supplier;

import org.apache.maven.api.annotations.Nonnull;

import static java.util.Objects.requireNonNull;

/**
 * A thin wrapper for a {@link Path} that serves as "current working directory" value. Hence, this class
 * is mutable (as CWD may be changed), but allows transition only to existing directories.
 */
public final class CWD implements Supplier<Path> {
    /**

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.opensearch.config.exentity;

import java.util.Map;
import java.util.function.Supplier;

import org.apache.http.auth.UsernamePasswordCredentials;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.client.CrawlerClientFactory;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Supplier;
import com.google.j2objc.annotations.WeakOuter;
import java.util.Comparator;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;

 * limitations under the License.
 */

package com.google.common.io;

import org.jspecify.annotations.NullUnmarked;

/**
 * Interface for a supplier of streams that can report whether a stream was opened and whether that
 * stream was closed. Intended for use in a test where only a single stream should be opened and
 * possibly closed.
 *
 * @author Colin Decker
 */

 * limitations under the License.
 */

package com.google.common.io;

import org.jspecify.annotations.NullUnmarked;

/**
 * Interface for a supplier of streams that can report whether a stream was opened and whether that
 * stream was closed. Intended for use in a test where only a single stream should be opened and
 * possibly closed.
 *
 * @author Colin Decker
 */