return cast;
  }

  /**
   * Returns the {@link AnnotatedType} of the parameter.
   *
   * @since 25.1 for guava-jre
   */
  @SuppressWarnings("Java7ApiChecker")
  public AnnotatedType getAnnotatedType() {
    return requireNonNull((AnnotatedType) annotatedType);
  }

  @Override
  public boolean equals(@CheckForNull Object obj) {
    if (obj instanceof Parameter) {

      }

      @Override
      boolean isNullable(Parameter param) {
        return FROM_DECLARATION_ANNOTATIONS_ONLY.isNullable(param)
            || containsNullable(param.getAnnotatedType().getAnnotations())
            || isNullableTypeVariable(param.getAnnotatedType().getType());
      }

      boolean isNullableTypeVariable(Type type) {
        if (!(type instanceof TypeVariable)) {
          return false;
        }