@Override
        public Certificate[] getPeerCertificates() throws SSLPeerUnverifiedException {
            if (peerCerts == null) {
                throw new SSLPeerUnverifiedException("Null peerCerts");
            } else {
                return peerCerts.clone();
            }
        }
Ensure that our non-standard behavior of learning to trust new
intermediate CAs does not regress. http://b/3404902
common/src/test/java/org/conscrypt/TrustManagerImplTest.java