To try it out:

* Open the app with several browser tabs.
* Write messages from them.
* Then close one of the tabs.

That will raise the `WebSocketDisconnect` exception, and all the other clients will receive a message like:

```
Client #1596980209979 left the chat
```

/// tip

The app above is a minimal and simple example to demonstrate how to handle and broadcast messages to several WebSocket connections.

        final String type = fessConfig.getCrawlerHotthreadType();
        try {
            final SearchEngineClient esClient = ComponentUtil.getSearchEngineClient();
            final NodesHotThreadsResponse response =
                    esClient.admin().cluster().prepareNodesHotThreads().setIgnoreIdleThreads(ignoreIdleThreads).setInterval(interval)

/* jcifs smb client library in Java
 * Copyright (C) 2000  "Michael B. Allen" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,

/* jcifs smb client library in Java
 * Copyright (C) 2000  "Michael B. Allen" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,

/* jcifs smb client library in Java
 * Copyright (C) 2005  "Michael B. Allen" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,

/* jcifs smb client library in Java
 * Copyright (C) 2005  "Michael B. Allen" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,

	// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY are
	// dummy values, please replace them with original values.

	// API requests are secure (HTTPS) if secure=true and insecure (HTTP) otherwise.
	// New returns an MinIO Admin client object.
	madmClnt, err := madmin.New(os.Args[1], os.Args[2], os.Args[3], false)
	if err != nil {
		log.Fatalln(err)
	}

	opts := madmin.HealOpts{

/* jcifs smb client library in Java
 * Copyright (C) 2003  "Michael B. Allen" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,

/* jcifs smb client library in Java
 * Copyright (C) 2002  "Michael B. Allen" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,

	helm.sh/helm/v3 v3.16.2
	istio.io/api v1.24.0-alpha.0.0.20241106042855-9e26cdd3450a
	istio.io/client-go v1.24.0-alpha.0.0.20241106043554-b5828356941f
	k8s.io/api v0.31.2
	k8s.io/apiextensions-apiserver v0.31.2
	k8s.io/apimachinery v0.31.2
	k8s.io/apiserver v0.31.2
	k8s.io/cli-runtime v0.31.2
	k8s.io/client-go v0.31.2
	k8s.io/klog/v2 v2.130.1
	k8s.io/kubectl v0.31.2
	k8s.io/utils v0.0.0-20240921022957-49e7df575cb6