Sonoma 14.4.1 Update Network Issue

I a trying to update my os to sonoma 14.4.1. The main reason is Java runtime error and the update is the fix for that. Now during the download of the update, I am constantly facing the issue saying " An error occurred while downloading the selected updates. Please check your internet connection and try again". Although I am on a stable high speed network and everything seems to be fine from the network side. I have done all the necessary steps available from the internet. DNS cache reset, forget the network etc however I am still facing this problem. I am stuck so badly in this because without this update my Java is not running properly. Kindly provide the solutions for software update or provide the real solution for "Java runtime Error" in terminal. I am on the high speed network, please note that.