getList().removeAll(MinimalCollection.of(duplicate)));
    assertFalse(
        "after removeAll(e), a collection should not contain e even "
            + "if it initially contained e more than once.",
        getList().contains(duplicate));
  }

  // All other cases are covered by CollectionRemoveAllTester.

          /*
           * standardToArray returns `@Nullable Object[]` rather than `Object[]` but only because it
           * can be used with collections that may contain null. This collection is a collection of
           * non-null Entry objects (Entry objects that might contain null values but are not
           * themselves null), so we can treat it as a plain `Object[]`.
           */
          @SuppressWarnings("nullness")

  /**
   * Returns a {@code Collector} that accumulates the input elements into a new {@code
   * ImmutableSortedSet}, ordered by the specified comparator.
   *
   * <p>If the elements contain duplicates (according to the comparator), only the first duplicate
   * in encounter order will appear in the result.
   *
   * @since 33.2.0 (available since 21.0 in guava-jre)
   */

 */
public class UploadForm {

    /**
     * The multipart file containing the elevate word configurations to be uploaded.
     * This file should contain definitions for words or documents that should be elevated in search results.
     */
    @Required
    public MultipartFormFile elevateWordFile;

    /**
     * Default constructor for UploadForm.

  public void testPutAll_nullKeyUnsupported() {
    assertThrows(NullPointerException.class, () -> putAll(containsNullKey));
    expectUnchanged();
    expectNullKeyMissingWhenNullKeysUnsupported(
        "Should not contain null key after unsupported putAll(containsNullKey)");
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  public void testPutAll_nullValueSupported() {
    putAll(containsNullValue);

/**
 * Utility class for managing render data in web responses.
 * This class provides methods to register values in RenderData objects with proper handling
 * of Entity objects and Collections that may contain Entity objects.
 *
 */
public class RenderDataUtil {

    /**
     * Default constructor.
     */
    private RenderDataUtil() {
        // Default constructor
    }

    /**

    int initialSize = getList().size();
    assertTrue("remove(present) should return true", getList().remove(duplicate));
    assertTrue(
        "After remove(duplicate), a list should still contain the duplicate element",
        getList().contains(duplicate));
    assertFalse(
        "remove(duplicate) should remove the first instance of the "
            + "duplicate element in the list",
        firstIndex == getList().indexOf(duplicate));

     */
    @Required
    public String dictId;

    /**
     * The multipart file containing the character mapping rules to be uploaded.
     * This file should contain character mapping definitions for text normalization.
     */
    @Required
    public MultipartFormFile charMappingFile;

    /**
     * Default constructor for UploadForm.

     */
    @Required
    public String dictId;

    /**
     * The multipart file containing the synonym mappings to be uploaded.
     * This file should contain synonym definitions in the appropriate format.
     */
    @Required
    public MultipartFormFile synonymFile;

    /**
     * Default constructor for UploadForm.
     * Creates a new instance with default values.

 * the JDK collection types and the Guava collection types (listed below).
 *
 * <h2>Collection types</h2>
 *
 * <dl>
 *   <dt>{@link Multimap}
 *   <dd>A new type, which is similar to {@link java.util.Map}, but may contain multiple entries
 *       with the same key. Some behaviors of {@link Multimap} are left unspecified and are provided
 *       only by the subtypes mentioned below.
 *   <dt>{@link ListMultimap}