return !queue.isEmpty();
    }

    @Override
    @ParametricNullness
    public T next() {
      IndexedIterator<T> nextIndexed = queue.remove();
      PeekingIterator<T> nextIter = nextIndexed.iterator;
      T next = nextIter.next();
      if (nextIter.hasNext()) {
        queue.add(nextIndexed);
      }
      return next;
    }
  }

  static <K, V> CountingRemovalListener<K, V> countingRemovalListener() {
    return new CountingRemovalListener<>();
  }

  /** {@link RemovalListener} that adds all {@link RemovalNotification} objects to a queue. */
  @GwtIncompatible // ConcurrentLinkedQueue
  static class QueuingRemovalListener<K, V> extends ConcurrentLinkedQueue<RemovalNotification<K, V>>
      implements RemovalListener<K, V> {

    @Override

		<arg>crawlerConfig</arg>
	</component>

	<component name="crawlerConfig" class="org.codelibs.fess.crawler.util.OpenSearchCrawlerConfig">
		<property name="queueIndex">"fess_crawler.queue"</property>
		<property name="queueShards">5</property>
		<property name="queueReplicas">1</property>
		<property name="dataIndex">"fess_crawler.data"</property>
		<property name="dataShards">5</property>

)},prefilters:[function(e,t,n){var r,i,o,a,s,u,l,c,f="width"in t||"height"in t,p=this,d={},h=e.style,g=e.nodeType&&ee(e),v=_.get(e,"fxshow");for(r in n.queue||(null==(a=ce._queueHooks(e,"fx")).unqueued&&(a.unqueued=0,s=a.empty.fire,a.empty.fire=function(){a.unqueued||s()}),a.unqueued++,p.always(function(){p.always(function(){a.unqueued--,ce.queue(e,"fx").length||a.empty.fire()})})),t)if(i=t[r],ft.test(i)){if(delete t[r],o=o||"toggle"===i,i===(g?"hide":"show")){if("show"!==i||!v||void 0===v[r])co...

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionFeature;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests offer operations on a queue. Can't be invoked directly; please
 * see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Jared Levy
 */
@GwtCompatible

	@echo "Running $@ check"
	@$(GOLANGCI) run --build-tags kqueue --timeout=10m --config ./.golangci.yml
	@command typos && typos ./ || echo "typos binary is not found.. skipping.."

lint-fix: getdeps ## runs golangci-lint suite of linters with automatic fixes
	@echo "Running $@ check"
	@$(GOLANGCI) run --build-tags kqueue --timeout=10m --config ./.golangci.yml --fix

check: test

      return getImpl();
    }
  }

  private static class QueueSupplier extends CountingSupplier<Queue<Integer>> {
    @Override
    /*
     * We need a Queue that implements equals() for the equality tests we perform after
     * reserializing the multimap.
     */
    @SuppressWarnings("JdkObsolete")
    public Queue<Integer> getImpl() {
      return new LinkedList<>();
    }

import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code poll()} operations on a queue. Can't be invoked directly;
 * please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Jared Levy
 */
@GwtCompatible

   * garbage-collected after that.
   */

  public static class MyFinalizableWeakReference extends FinalizableWeakReference<Object> {
    public MyFinalizableWeakReference(Object x, FinalizableReferenceQueue queue) {
      super(x, queue);
    }

    @Override
    public void finalizeReferent() {}
  }

  private WeakReference<ClassLoader> useFrqInSeparateLoader() throws Exception {

        crawlerThread.setCrawlerContext(crawlerContext);

        when(crawlerContainer.available()).thenReturn(true);
    }

    /**
     * Test isValid method with a valid URL queue.
     */
    public void test_isValid_validUrlQueue() throws Exception {
        final UrlQueue<?> urlQueue = new UrlQueueImpl<>();
        urlQueue.setUrl("http://example.com/");
        urlQueue.setDepth(1);