Fix Java WebSocket library nv-websocket-client to connect to WSS endpoints in Android 5-6

Our GPS driver tracking Android mobile app uses the open source Java WebSocket library nv-websocket-client, hosted on GitHub. nv-websocket-client works well, but it has a known issue - when running under old Android versions 5-6, it cannot establish connections to secure WSS endpoints. It fails and generates the exception "[login to view URL]: Failed to get the input stream of the raw socket: Handshake failed". The relevant nv-websocket-client GitHub issue page can be found here: [login to view URL] We are after a competent Java/Android programmer with a solid understanding of low level HTTPS/TLS/SSL/WebSocket protocol internals to fork nv-websocket-client, implement a fix for this issue and then issue a GitHub pull request. This issue can be reproduced using the virtual device Nexus 4 API 22 (Android 5.1) under Android Studio 4.0.1. When you run the code in the Android Studio debugger and run the getCause() method on the exception object in the, you see these additional error details: "[login to view URL]: SSL handshake aborted: ssl=0xb4067000: Failure in SSL library, usually a protocol error error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure (external/openssl/ssl/s23_clnt.c:770 0xabf13dd4:0x00000000)" As part of our attempts to overcome this problem, we have also tried replacing nv-websocket-client with a different WebSocket library Koush/AndroidAsync. Although Koush/AndroidAsync is able to successfully establish connections to WSS endpoints under Android 5.1, it does not support the WebSocket compression extension permessage-deflate, whereas nv-websocket-client does. Compression support is important to us as it reduces mobile data usage. Therefore, it seems the only option available to us is to fix nv-websocket-client. Perhaps examining the source code of Koush/AndroidAsync could provide clues to help fix the issue in nv-websocket-client? Perhaps not - it was just an idea I had. The GitHub page for nv-websocket-client can be found here: [login to view URL] The GitHub page for Koush/AndroidAsync can be found here: [login to view URL] We will provide a test WSS endpoint to the selected freelancer.