// Put types estimated to be the most frequent first.
      if (value instanceof CharSequence) {
        return ((CharSequence) value).length() == 0;
      } else if (value instanceof Collection) {
        return ((Collection<?>) value).isEmpty();
      } else if (value instanceof Map) {
        return ((Map<?, ?>) value).isEmpty();
      } else if (value instanceof java.util.Optional) {

    @Override
    public boolean equals(@Nullable Object obj) {
      return obj instanceof ConstructorParameterSingleValue;
    }

    @Override
    public int hashCode() {
      return 1;
    }

    public static class Singleton {
      public static final Singleton INSTANCE = new Singleton();

      private Singleton() {}
    }
  }

    }

    private boolean isClassFieldConstructorOrMethod(JApiCompatibility member) {
        return member instanceof JApiClass || member instanceof JApiField || member instanceof JApiConstructor || member instanceof JApiMethod;
    }

    private boolean isInject(JApiCompatibility member) {
        return member instanceof JApiHasAnnotations && isInject((JApiHasAnnotations) member);
    }

      @Override
      public boolean equals(@Nullable Object that) {
        if (that instanceof Pred) {
          return this.node.equals(((Pred<?>) that).node);
        } else {
          return false;
        }
      }

      @Override
      public int hashCode() {
        // Adding the class hashCode to avoid a clash with Succ instances.
        return Pred.class.hashCode() + node.hashCode();
      }
    }

   * example, {@code instanceOf(ArrayList.class)} will yield different results for the two equal
   * instances {@code Lists.newArrayList(1)} and {@code Arrays.asList(1)}.
   *
   * <p><b>Discouraged:</b> Prefer using {@code clazz::isInstance} or {@code x -> x instanceof
   * Clazz}, but note that lambdas do not have human-readable {@link #toString()} representations

   * called on the {@code TypeVariable} instance has the same name as one of the public methods of
   * {@link TypeVariableImpl}, the proxy calls the same method on its instance of {@code
   * TypeVariableImpl}. Otherwise it throws {@link UnsupportedOperationException}; this should only
   * apply to {@code getAnnotatedBounds()}. This does mean that users on Java who obtain an instance

    checkNotNull(type);
    if (type instanceof TypeVariable) {
      return typeTable.resolve((TypeVariable<?>) type);
    } else if (type instanceof ParameterizedType) {
      return resolveParameterizedType((ParameterizedType) type);
    } else if (type instanceof GenericArrayType) {
      return resolveGenericArrayType((GenericArrayType) type);
    } else if (type instanceof WildcardType) {

            return null;
        }
        if (terminal instanceof FastTerminal ft) {
            terminal = ft.getTerminal();
        }
        List<String> subs = new ArrayList<>();
        subs.add("type=" + terminal.getType());
        if (terminal instanceof TerminalExt te) {
            subs.add("provider=" + te.getProvider().name());
        }
        if (terminal instanceof AbstractPosixTerminal pt) {

            removeAnnotationChanges(member);

            if ((member instanceof JApiClass) && member.getCompatibilityChanges().isEmpty()) {
                // A member of the class breaks binary compatibility.
                // That will be handled when the member is passed to `maybeViolation`.
                return null;
            }
            if (member instanceof JApiImplementedInterface) {

    }

    @Override
    Violation maybeViolation(JApiCompatibility member) {

        if (isNewOrRemoved(member) || !(member instanceof JApiMethod)) {
            return null
        }

        JApiMethod method = (JApiMethod) member

        def metadata = KotlinMetadataQueries.INSTANCE

        def oldMethod = method.oldMethod.get()
        def newMethod = method.newMethod.get()