-import { Utils, logger } from '../../../utils';
-import { type AbstractUIServer, Bootstrap, UIServiceWorkerBroadcastChannel } from '../../internal';
+import { isNotEmptyArray, isNullOrUndefined, logger } from '../../../utils';
+import { Bootstrap } from '../../Bootstrap';
+import { UIServiceWorkerBroadcastChannel } from '../../broadcast-channel/UIServiceWorkerBroadcastChannel';
+import type { AbstractUIServer } from '../AbstractUIServer';