@Override
      public UnmodifiableIterator<T> iterator() {
        return preOrderIterator(root);
      }

      @Override
      public void forEach(Consumer<? super T> action) {
        checkNotNull(action);
        new Consumer<T>() {
          @Override
          public void accept(T t) {
            action.accept(t);
            children(t).forEach(this);
          }
        }.accept(root);

        }
    }

    public void addFunctionScore(final Consumer<List<FilterFunctionBuilder>> functionScoreQuery) {
        final List<FilterFunctionBuilder> list = new ArrayList<>();
        functionScoreQuery.accept(list);
        queryBuilder = QueryBuilders.functionScoreQuery(queryBuilder, list.toArray(new FilterFunctionBuilder[list.size()]));
    }

    public void addQuery(final Consumer<BoolQueryBuilder> boolQuery) {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.plugin;

import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.ThreadSafe;

/**
 * This interface forms the contract required for Mojos to interact with the Maven infrastructure.

        return returnFirstPresentOrEmpty(Options::help);
    }

    @Override
    public void warnAboutDeprecatedOptions(ParserRequest request, Consumer<String> printWriter) {}

    @Override
    public void displayHelp(ParserRequest request, Consumer<String> printWriter) {
        options.get(0).displayHelp(request, printWriter);
    }

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.util;

import java.util.function.Consumer;

import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathEvaluationResult;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import javax.xml.xpath.XPathNodes;

 * under the License.
 */
package org.apache.maven.api.services;

import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;

/**
 * @since 4.0.0
 */
@Experimental
@Consumer
public interface ToolchainFactory {
    // TODO: implement ToolchainFactory

import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.Map;
import java.util.function.Consumer;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.fess.Constants;

public class ThreadDumpUtil {

 */
package org.apache.maven.api.services;

import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.Service;
import org.apache.maven.api.Session;
import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**

import org.apache.maven.api.Service;
import org.apache.maven.api.Session;
import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * Resolves artifact meta/pseudo versions.
 *
 * @since 4.0.0
 */
@Experimental
@Consumer
public interface VersionResolver extends Service {

    /**

 */
public final class Features {

    private Features() {}

    /**
     * Check if the consumer POM feature is active.
     */
    public static boolean consumerPom(@Nullable Properties userProperties) {
        return doGet(userProperties, Constants.MAVEN_CONSUMER_POM, true);
    }

    /**
     * Check if the consumer POM feature is active.
     */