SSLSocket enabledProtocols does not return tls v1.2

Question

I am testing on Android 4.2.2 (API 17) and running following code.

        KeyManagerFactory kmf = .... //generating KeyManagerFactory
        if (kmf == null) {
            throw new UnexpectedInternalException("Initialisation of SSLContext failed!");
        }
        KeyManager[] keyManagers = kmf.getKeyManagers();
        SSLContext sslContext = SSLContext.getInstance("TLSv1.2");
        sslContext.init(keyManagers, null, null);
        SSLSocketFactory f = sslContext.getSocketFactory();

and when I inspect the SocketFactory, I see below:

Why does it not show TLSv1.2?

I run the same code on Android 6.0 and it does return TLSv1.2. According to SSLContext API docs, TLSv1.2 is supported from API 16+ and Android 4.2.2 is API 17. It should return TLSv1.2 but not sure why it is not returning in the enabledProtocols.