Getting empty JSONArray as response after making a POST request using Volley on Android

Question

I am expecting a JSONArray with a list of JSONObjects in the response that was originally passed in the request body. However, I'm getting a success response with an empty JSONArray. I'm certain that the API is working fine since I tested it on Postman.

JsonArrayRequest arrayRequest = new JsonArrayRequest(DownloadManager.Request.Method.POST, URL, jsonArray,
        ResSuccessListenerForJsonArray(requestType),
        ResErrorListenerForJsonArray(requestType)
) {
    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {
        Map<String, String> headers = new HashMap<String, String>();

        headers.put("Content-Type", "application/json; charset=utf-8");

        return headers != null ? headers : super.getHeaders();
    }
};

I'm spawning an AsyncTask from the job service to make the request.

Here's a snippet of the response:

    [ 
     {
         "id": "902b7fc3-5059-4265-85eb-d00db3594af5",
         "user": "test@gmail.com",
         "package":"com.whatsapp",
          .
          .
          .
      },
      {  
         "id": "902b7fc3-5059-4265-85eb-d00db3594af5",
         "user": "test@gmail.com",
         "package":"com.whatsapp",
          .
          .
          .
       },
       .
       .
       .


    ]

This is my response handler:

    private static Response.Listener<JSONArray> ResSuccessListenerForJsonArray(final String requestType) {
    return new Response.Listener<JSONArray>() {
        @Override
        public void onResponse(JSONArray response) {
            Log.e("Success", "Notification data logged successfully");

            if (response != null && response.length() > 0) {
                try {
                    handleSuccess(requestType, response);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    };
}