}

  private static final class UnknownElementException extends RuntimeException {
    private UnknownElementException(Collection<?> expected, Object actual) {
      super("Returned value '" + actual + "' not found. Remaining elements: " + expected);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  /**

    private @Nullable ValueEntry<K, V> firstEntry;
    private @Nullable ValueEntry<K, V> lastEntry;

    ValueSet(@ParametricNullness K key, int expectedValues) {
      this.key = key;
      // Round expected values up to a power of 2 to get the table size.
      int tableSize = Hashing.closedTableSize(expectedValues, VALUE_SET_LOAD_FACTOR);

      @SuppressWarnings({"rawtypes", "unchecked"})

	if count := DB.Model(&user).Where("name = ?", user.Pets[1].Name).Association("Pets").Count(); count != 1 {
		t.Fatalf("should only find one pets, but got %v", count)
	}

	if count := DB.Model(&user).Where("name = ?", "not found").Association("Pets").Count(); count != 0 {
		t.Fatalf("should only find no pet with invalid conditions, but got %v", count)
	}

	// Count
	AssertAssociationCount(t, user, "Pets", 2, "")

	// Append

		if err != nil {
			t.Errorf("Test %d: Expected to pass but failed. %s", i+1, err)
		}
		if err == nil && s != testCase.expectedSize {
			t.Errorf("Test %d: The calculated part size is incorrect: expected = %d, found = %d\n", i+1, testCase.expectedSize, s)
		}
	}

	testCasesFailure := []struct {
		totalSize int64
		partSize  int64
		partIndex int
		err       error
	}{
		// partSize is 0, returns error.

            }
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to create {} index.", indexName);
            }
        } catch (final Exception e) {
            logger.warn("{} is not found.", indexConfigFile, e);
        }

        return false;
    }

    /**
     * Deletes an index from the search engine.
     *
     * @param indexName the name of the index to delete

            }

            if (!systemFile.exists()) {
                throw new ArtifactNotFoundException(
                        "System artifact: " + artifact + " not found in path: " + systemFile, artifact);
            }

            if (!systemFile.isFile()) {
                throw new ArtifactNotFoundException(

    /**
     * Returns the first child node with the specified name.
     *
     * @param name the name of the child node to find
     * @return the first matching child node, or {@code null} if none found
     */
    @Nullable
    XmlNode child(String name);

    /**
     * Returns the input location information for this node, if available.
     * This can be useful for error reporting and debugging.
     *

:calc(1.5em + 1rem + calc(var(--bs-border-width) * 2))}.form-select{--bs-form-select-bg-img:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");display:block;width:100%;padding:.375rem 2.25rem .375rem .75rem;font-size:1rem;font-weight:400;line-height:1.5;color:var(--bs-body-color);background-color:var(--bs-body-bg);background-...

     * @param id the document ID to retrieve
     * @param fields the fields to include in the response (null for all fields)
     * @return the document as a map of field names to values, or null if not found
     */
    public Map<String, Object> getDocument(final SearchEngineClient searchEngineClient, final String id, final String[] fields) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

     * synchronization actions.)
     *
     * All that said: I haven't actually managed to make this particular test produce a TSAN error
     * for the field accesses in MapIteratorCache. This test *has* found other TSAN errors,
     * including in MapRetrievalCache, so I'm not sure why this one is different. I did at least
     * confirm that my change to MapIteratorCache fixes the TSAN error in the (larger) test it was