* entrySet().contains(null)} or {@code entrySet().remove(null)}
   */
  ALLOWS_NULL_ENTRY_QUERIES,
  /**
   * The map does not throw {@code NullPointerException} on any {@code null} queries.
   *
   * @see #ALLOWS_NULL_KEY_QUERIES
   * @see #ALLOWS_NULL_VALUE_QUERIES
   * @see #ALLOWS_NULL_ENTRY_QUERIES
   */
  ALLOWS_ANY_NULL_QUERIES(

        }
    }

    /**
     * Stores a failure URL with error information for later analysis.
     *
     * @param crawlerContext the crawler context
     * @param urlQueue the URL queue containing the failed URL
     * @param errorName the name/type of the error
     * @param e the throwable that caused the failure
     * @return the stored FailureUrl entity
     */

 * `dnsStart(call, domainName)` → `dnsEnd(call, domainName, inetAddressList)`.
 *
 * Events are typically nested with this structure:
 *
 *  * call ([callStart], [callEnd], [callFailed])
 *    * dispatcher queue ([dispatcherQueueStart], [dispatcherQueueEnd])
 *    * proxy selection ([proxySelectStart], [proxySelectEnd])
 *    * dns ([dnsStart], [dnsEnd])
 *    * connect ([connectStart], [connectEnd], [connectFailed])

import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

/**
 * Query command implementation for handling Boolean queries.
 * Converts Lucene BooleanQuery objects to OpenSearch BoolQueryBuilder objects.
 */
public class BooleanQueryCommand extends QueryCommand {
    /**
     * Default constructor for BooleanQueryCommand.
     */

    /** Available send credits for flow control */
    protected final AtomicInteger sendCredits;
    /** Available receive credits for flow control */
    protected final AtomicInteger receiveCredits;
    /** Queue of pending RDMA work requests */
    protected final BlockingQueue<RdmaWorkRequest> pendingRequests;

    // Connection state
    /** Current connection state */
    protected volatile RdmaConnectionState state;

 * rate limit itself.
 *
 * {@snippet :
 * class CrawlingService extends AbstractScheduledService {
 *   private Set<Uri> visited;
 *   private Queue<Uri> toCrawl;
 *   protected void startUp() throws Exception {
 *     toCrawl = readStartingUris();
 *   }
 *
 *   protected void runOneIteration() throws Exception {
 *     Uri uri = toCrawl.remove();

import jcifs.internal.dfs.DfsReferralResponseBuffer;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.smb1.trans.SmbComTransactionResponse;

/**
 * Trans2 GetDfsReferral response message for DFS referral queries.
 * This class handles the response from a TRANS2_GET_DFS_REFERRAL request, which returns
 * DFS referral information for redirecting clients to distributed file system targets.
 */

import jcifs.Configuration;
import jcifs.internal.dfs.DfsReferralRequestBuffer;
import jcifs.internal.smb1.trans.SmbComTransaction;

/**
 * Trans2 GetDfsReferral request message for DFS referral queries.
 * This class implements the TRANS2_GET_DFS_REFERRAL transaction to request
 * DFS referral information for distributed file system path resolution.
 */
public class Trans2GetDfsReferral extends SmbComTransaction {

    public static final String SMBSERVER_NAME = "*SMBSERVER     ";

    /**
     * A B node only broadcasts name queries. This is the default if a
     * nameserver such as WINS or Samba is not specified.
     */

    public static final int B_NODE = 0;

    /**
     * A Point-to-Point node, or P node, unicasts queries to a nameserver
     * only. Natrually the <code>jcifs.smb1.netbios.nameserver</code> property must
     * be set.

        FileEntry fe3 = mock(FileEntry.class);
        lenient().when(fe3.getName()).thenReturn("file3");
        when(fe3.getFileIndex()).thenReturn(3);

        // Track query count to handle multiple queries properly
        final int[] queryCount = { 0 };

        // Mock send(create) to wire a query response with fe1, fe2
        doAnswer(inv -> {
            Object arg = inv.getArgument(0);