public Map<K, Collection<V>> asMap() {
    Map<K, Collection<V>> result = asMap;
    return (result == null) ? asMap = createAsMap() : result;
  }

  abstract Map<K, Collection<V>> createAsMap();

  // Comparison and hashing

  @Override
  public boolean equals(@Nullable Object object) {
    return Multimaps.equalsImpl(this, object);
  }

  /**
   * Returns the hash code for this multimap.
   *

 *   <li>the hash codes of any two equal objects are equal
 * </ul>
 *
 * <p>When a test fails, the error message labels the objects involved in the failed comparison as
 * follows:
 *
 * <ul>
 *   <li>"{@code [group }<i>i</i>{@code , item }<i>j</i>{@code ]}" refers to the
 *       <i>j</i><sup>th</sup> item in the <i>i</i><sup>th</sup> equality group, where both equality

    public boolean isDeleted() {
        return isUpdated() && newInputs.length == 0;
    }

    /**
     * Sorts both the current inputs and new inputs arrays in place.
     * This ensures consistent ordering for comparison and equality operations.
     */
    public void sort() {
        if (inputs != null) {
            Arrays.sort(inputs);
        }
        if (newInputs != null) {
            Arrays.sort(newInputs);

 *   <li>the hash codes of any two equal objects are equal
 * </ul>
 *
 * <p>When a test fails, the error message labels the objects involved in the failed comparison as
 * follows:
 *
 * <ul>
 *   <li>"{@code [group }<i>i</i>{@code , item }<i>j</i>{@code ]}" refers to the
 *       <i>j</i><sup>th</sup> item in the <i>i</i><sup>th</sup> equality group, where both equality

            mac.update(data, offset, length);
            final byte[] cmp = new byte[SIGNATURE_LENGTH];
            System.arraycopy(mac.doFinal(), 0, cmp, 0, SIGNATURE_LENGTH);

            // Use constant-time comparison to prevent timing attacks
            if (!MessageDigest.isEqual(sig, cmp)) {
                return false; // Signature verification failed
            }
            return true; // Signature verification succeeded

  public Map<K, Collection<V>> asMap() {
    Map<K, Collection<V>> result = asMap;
    return (result == null) ? asMap = createAsMap() : result;
  }

  abstract Map<K, Collection<V>> createAsMap();

  // Comparison and hashing

  @Override
  public boolean equals(@Nullable Object object) {
    return Multimaps.equalsImpl(this, object);
  }

  /**
   * Returns the hash code for this multimap.
   *

        assertTrue(item1.equals(item2));
    }

    @Test
    public void test_equals_withNullInput() {
        // Test equals with null input - should not throw, uses null-safe comparison
        StopwordsItem item1 = new StopwordsItem(1, null);
        StopwordsItem item2 = new StopwordsItem(2, null);
        StopwordsItem item3 = new StopwordsItem(1, "word");

                            result = -1;
                        }
                    }
                    if (result == 0) {
                        // We don't consider the version range in the comparison, just the resolved version
                        result = new DefaultArtifactVersion(version)
                                .compareTo(new DefaultArtifactVersion(a.getVersion()));
                    }
                }

        Set<RequestData> result = crawlerThread.getAnchorSet(urls);
        assertNotNull(result, "getAnchorSet should handle duplicates");

        // Since it returns a Set, duplicates should be handled by URL comparison
        // The exact behavior depends on RequestData.equals() implementation
        assertTrue("Should have at most 5 items", result.size() <= 5);
    }

            builder.allRecordCount(10);
            builder.allRecordCountRelation(Relation.EQUAL_TO.toString());
            return builder.build();
        }
    }

    /**
     * Normal test searcher for comparison.
     */
    static class TestSearcher extends RankFusionSearcher {
        private final long allRecordCount;

        TestSearcher(long allRecordCount) {
            this.allRecordCount = allRecordCount;