*       once. This reduces the expense of habitually making defensive copies at API boundaries.
 *       However, the precise conditions for skipping the copy operation are undefined.
 *   <li><b>Warning:</b> a view collection such as {@link ImmutableMap#keySet} or {@link
 *       ImmutableList#subList} may retain a reference to the entire data set, preventing it from

        throw new UnsupportedOperationException("already specified useForNull");
      }
    };
  }

  /**
   * Returns a joiner with the same behavior as this joiner, except automatically skipping over any
   * provided null elements.
   */
  public Joiner skipNulls() {
    return new Joiner(this) {
      @Override
      @SuppressWarnings("JoinIterableIterator") // suggests infinite recursion

        this.enableHighPerformanceMode = enable;
        log.info("High performance masking mode {}", enable ? "enabled" : "disabled");
    }

    /**
     * Enable or disable skipping masking for debug level logs
     *
     * When enabled, DEBUG level logs will skip sensitive data masking entirely
     * to improve performance in development and debugging scenarios.
     *

    assertEquals((Integer) 12, it.next());
    assertEquals((Integer) 30, it.next());
    assertEquals((Integer) 40, it.next());
    // Skipping 20
    assertEquals((Integer) 11, it.next());
    // Not skipping 400, because it moved back down
    assertEquals((Integer) 400, it.next());
    assertEquals((Integer) 13, it.next());
    assertEquals((Integer) 200, it.next());

    /** Configuration key for Azure AD reply URL. */
    protected static final String AZUREAD_REPLY_URL = "aad.reply.url";

    /** Session attribute key for storing Azure AD states. */
    protected static final String STATES = "aadStates";

    /** OAuth2 state parameter name. */
    protected static final String STATE = "state";

    /** OAuth2 error parameter name. */

                        Default credentials (jcifs.smb1.smb1.client.username/password)\
                         not specified. SMB signing may not work propertly.\
                          Skipping DC interrogation.""");
            }
        } else {
            final SmbSession ssn = trans.getSmbSession(NtlmPasswordAuthentication.DEFAULT);
            ssn.getSmbTree(LOGON_SHARE, null).treeConnect(null, null);

        }
    }

    /**
     * Stores a child URL in the crawling queue with duplicate host handling.
     * This method applies duplicate host conversion before storing the URL.
     *
     * @param childUrl the child URL to store
     * @param parentUrl the parent URL that referenced this child URL
     * @param weight the weight/priority of the child URL

   * {@inheritDoc}
   *
   * <p>The returned set has an iterator that does not support {@code remove()}.
   *
   * <p>The set's iterator traverses the columns of the first row, the columns of the second row,
   * etc., skipping any columns that have appeared previously.
   */
  @Override
  public Set<C> columnKeySet() {
    Set<C> result = columnKeySet;
    return (result == null) ? columnKeySet = new ColumnKeySet() : result;
  }

   *
   *   o REMOVE lines track entries that have been deleted.
   *
   * The journal file is appended to as cache operations occur. The journal may occasionally be
   * compacted by dropping redundant lines. A temporary file named "journal.tmp" will be used during
   * compaction; that file should be deleted if it exists when the cache is opened.
   */

  private val journalFile: Path

        throw new UnsupportedOperationException("already specified useForNull");
      }
    };
  }

  /**
   * Returns a joiner with the same behavior as this joiner, except automatically skipping over any
   * provided null elements.
   */
  public Joiner skipNulls() {
    return new Joiner(this) {
      @Override
      @SuppressWarnings("JoinIterableIterator") // suggests infinite recursion