This is the decompiled source from /system/framework/wifi-service.jar in Samsung Galaxy Note-10+ Phone (Hong Kong version), as at Sept 2020.

This was decompiled using JADX, with "Enable deobfuscation" mode turned on, enabling more code to be decompiled to Java, but resulting in some incorrect code.

The background decompiling this source code is that it contains evidence that the code, without knowledge of its owner, forcibly add a new public DNS server, 114.114.114.114, controlled by Cogent Communications, under Nanjing XinFeng Information Technologies Inc, in Mainland China, when the device is operating in Hong Kong (as well Macau / Mainland China), and use the server to resolve www.qq.com, a domain owned by Chinese tech giant Tencent.

This has caused privacy concerns for some users in Hong Kong. I claim fair use for posting this copyrighted work, for the purpose of criticism, comment, news reporting, and research concerning the Samsung phones.