* List<A extends String>}, we need to compare that {@code <A extends B>} is unequal to {@code <A
   * extends String>} in order to decide to use the transformed type instead of the original type.
   */
  static final class TypeVariableKey {
    private final TypeVariable<?> var;

    TypeVariableKey(TypeVariable<?> var) {
      this.var = checkNotNull(var);
    }

   * <p><b>Java 9 users:</b> some use cases can be written with calls to {@code optional.stream()}.
   *
   * @since 11.0
   */
  public abstract Set<T> asSet();

  /**
   * If the instance is present, it is transformed with the given {@link Function}; otherwise,
   * {@link Optional#absent} is returned.
   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method is similar to Java 8's {@code

   * List<A extends String>}, we need to compare that {@code <A extends B>} is unequal to {@code <A
   * extends String>} in order to decide to use the transformed type instead of the original type.
   */
  static final class TypeVariableKey {
    private final TypeVariable<?> var;

    TypeVariableKey(TypeVariable<?> var) {
      this.var = checkNotNull(var);
    }

  a. Adapted Material means material subject to Copyright and Similar
     Rights that is derived from or based upon the Licensed Material
     and in which the Licensed Material is translated, altered,
     arranged, transformed, or otherwise modified in a manner requiring
     permission under the Copyright and Similar Rights held by the
     Licensor. For purposes of this Public License, where the Licensed

   * fromCollection} supports them.
   *
   * <p>The returned collection isn't threadsafe or serializable, even if {@code fromCollection} is.
   *
   * <p>When a live view is <i>not</i> needed, it may be faster to copy the transformed collection
   * and use the copy.
   *
   * <p>If the input {@code Collection} is known to be a {@code List}, consider {@link
   * Lists#transform}. If only an {@code Iterable} is available, use {@link Iterables#transform}.

          <name>pomFile</name>
          <version>4.1.0+</version>
          <required>false</required>
          <description>Originating POM file</description>
          <type>DOM</type> <!-- This is transformed to a File/Path in the template -->
        </field>

        <!-- ====================================================================== -->

- List operations against the API now return internal server errors instead of partially complete lists when a value cannot be transformed from storage. The updated behavior is consistent with all other operations that require transforming data from storage such as watch and get. ([#69399](https://github.com/kubernetes/kubernetes/pull/69399), [@mikedanese](https://github.com/mikedanese))...

### Feature

- Parallelize calls to conversion webhooks when watching from etcd to prevent watchcache from lagging and helps clusters with slow conversion webhooks or transformers.