oldMethods.removeAll(newMethods)

        if (oldMethods.isEmpty()) {
            return null
        }

        List<String> changes = filterChangesToReport(oldClass, oldMethods)
        if (changes.isEmpty()) {
            return null
        }
        return acceptOrReject(c, changes, Violation.error(c, " methods removed in internal super class"))
    }

     * @param error the error message
     */
    void onError(String phase, String error);

    /**
     * Returns a no-op callback implementation.
     *
     * @return a callback that does nothing
     */
    static ChatPhaseCallback noOp() {
        return new ChatPhaseCallback() {
            @Override
            public void onPhaseStart(final String phase, final String message) {

- `@Execute` marks web endpoints
- `@Resource` for DI
- `@Secured({ "role", "role-view" })` for authorization
- Return `HtmlResponse` for JSP, `JsonResponse` for APIs

### Service
- Inject behaviors (Bhv) for data access
- Use `OptionalEntity<T>` for nullable returns
- Plain classes (no extends/implements)

### Helper
- Stateless utility classes
- Access via `ComponentUtil.getXyzHelper()`

            }
        }
    }

    private String processResponseType(SsoResponseType type) {
        switch (type) {
        case METADATA:
            return "metadata";
        case LOGOUT:
            return "logout";
        default:
            throw new IllegalArgumentException("Unknown type: " + type);
        }
    }

     * @return the data store instance if found, null if not found or name is null
     */
    public DataStore getDataStore(final String name) {
        if (name == null) {
            return null;
        }
        return dataStoreMap.get(name.toLowerCase(Locale.ROOT));
    }

    /**
     * Returns an array of available data store names discovered from plugin JAR files.

     * @param value the object to convert to float
     * @return float representation of the value, or 0.0f if conversion fails
     */
    protected float toFloat(final Object value) {
        if (value instanceof final Float f) {
            return f;
        }
        if (value instanceof final String s) {
            return Float.parseFloat(s);
        }
        return 0.0f;
    }

    /**

            return Constants.SEARCH_LOG_ACCESS_TYPE_JSON;
        } else if (Constants.SEARCH_LOG_ACCESS_TYPE_GSA.equals(accessType)) {
            return Constants.SEARCH_LOG_ACCESS_TYPE_GSA;
        } else if (Constants.SEARCH_LOG_ACCESS_TYPE_OTHER.equals(accessType)) {
            return Constants.SEARCH_LOG_ACCESS_TYPE_OTHER;
        } else if (Constants.SEARCH_LOG_ACCESS_TYPE_ADMIN.equals(accessType)) {

        case CrudMode.CREATE:
            return OptionalEntity.of(new User()).map(entity -> {
                entity.setId(Base64.getUrlEncoder().encodeToString(form.name.getBytes(Constants.CHARSET_UTF_8)));
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {
                return ComponentUtil.getComponent(UserService.class).getUser(((EditForm) form).id);

            return OptionalEntity.of(entity);
        case CrudMode.EDIT:
            if (form instanceof EditForm) {
                return ComponentUtil.getComponent(StemmerOverrideService.class).getStemmerOverrideItem(form.dictId, ((EditForm) form).id);
            }
            break;
        default:
            break;
        }
        return OptionalEntity.empty();
    }

    /**

        OptionalThing<TimeZone> result = provider.findBusinessTimeZone(null, null);

        // Should still return empty optional
        assertNotNull(result);
        assertFalse(result.isPresent());
    }

    // Helper method to create mock RequestManager
    private RequestManager createMockRequestManager() {
        return new SimpleRequestManager() {
            // No additional overrides needed for testing
        };
    }