ADDITIONAL SYSTEM INFORMATION :
CentOS Linux release 8.0.1905
MacOS catalina 10.15.7
A DESCRIPTION OF THE PROBLEM :
In this version TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 and TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 are incompatible with previous.
Some HTTPS sites, for example, https://fcm.googleapis.com, returns the handshake error when using these two ciphers.
REGRESSION : Last worked in version 8
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Use TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 as supported cipher to connect https://fcm.googleapis.com. And will receive a TLS handshake error.
---------- BEGIN SOURCE ----------
@Test
    public void sslSocketTest() throws IOException {
        SSLSocket socket = (SSLSocket) SSLSocketFactory.getDefault().createSocket();
        socket.setEnabledCipherSuites(new String[] {
                "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
        });
        InetSocketAddress socketAddress =new InetSocketAddress("fcm.googleapis.com",443);
        socket.connect(socketAddress);
        socket.startHandshake();
        socket.close();
    }
---------- END SOURCE ----------
FREQUENCY : always