* hide {@link ImmutableMap#toImmutableMap(Function, Function, BinaryOperator)} from consumers of
   * {@code ImmutableBiMap}.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Merging values does not make sense for a {@code BiMap}.
   * @since 33.2.0 (available since 21.0 in guava-jre)
   */
  @Deprecated
  @DoNotCall("Use toImmutableBiMap")

   *
   * <p>If the mapped keys contain duplicates (according to {@link Object#equals(Object)}), the
   * values are merged using the specified merging function. If the merging function returns {@code
   * null}, then the collector removes the value that has been computed for the key thus far (though
   * future occurrences of the key would reinsert it).
   *

/**
 * RankFusionProcessor manages multiple search engines and combines their results using rank fusion algorithms.
 * This processor supports searching with multiple searchers concurrently and merging their results based on
 * ranking scores to provide more comprehensive and accurate search results.
 *
 * The processor maintains a pool of searchers and an executor service for concurrent operations.

   *
   * <p>If the mapped keys contain duplicates (according to {@link Object#equals(Object)}), the
   * values are merged using the specified merging function. If the merging function returns {@code
   * null}, then the collector removes the value that has been computed for the key thus far (though
   * future occurrences of the key would reinsert it).
   *

        }
    }

    /**
     * Checks if the given URL represents a file system path.
     * Determines if the URL uses file system protocols that may require
     * special handling for content serving.
     *
     * @param url the URL to check
     * @return true if the URL is a file system path, false otherwise
     */
    protected boolean isFileSystemPath(final String url) {

      @Override
      public @Nullable Object[] toArray() {
        return data.toArray();
      }
    };
  }

  /**
   * Returns a "nefarious" map entry with the specified key and value, meaning an entry that is
   * suitable for testing that map entries cannot be modified via a nefarious implementation of
   * equals. This is used for testing unmodifiable collections of map entries; for example, it

          if ((hash1 & (1 << k)) == (hash2 & (1 << k))) {
            same[k] += 1;
          } else {
            diff[k] += 1;
          }
        }
      }
      // measure probability and assert it's within margin of error
      for (int j = 0; j < hashBits; j++) {
        double prob = (double) diff[j] / (double) (diff[j] + same[j]);
        assertThat(prob).isWithin(epsilon).of(0.50d);
      }
    }
  }

  /**

    }

    /**
     * Escapes special regex characters in a string to create a literal pattern.
     * Handles anchor characters (^ and $) specially to preserve their regex meaning.
     *
     * @param s the string to escape
     * @return an escaped regex pattern, or empty string for comments
     */
    protected String escape(final String s) {
        if (s.startsWith("#")) {

        assertEquals(7, userInfoDeletedDays[0]);

        // Assert result is empty when all succeed
        assertEquals("", result);
    }

    // Test with negative days to skip purging
    public void test_execute_negativeDays() {
        // Setup tracking variables
        final boolean[] deleteCrawlingInfoCalled = { false };
        final boolean[] deleteSearchLogCalled = { false };

            return visitor.getCount();
        } catch (final Exception e) {
            throw new JobProcessingException(e);
        }
    }

    /**
     * File visitor for purging old thumbnail files.
     */
    protected static class FilePurgeVisitor implements FileVisitor<Path> {

        /**
         * Expiry time threshold for file deletion.
         */