static SSLParametersImpl getDefault() throws KeyManagementException {
        SSLParametersImpl result = defaultParameters;
        if (result == null) {
            // single-check idiom
            defaultParameters = result = new SSLParametersImpl(null,
                                                               null,
                                                               null,
                                                               new ClientSessionContext(),
                                                               new ServerSessionContext(),
                                                               null);
        }
        return (SSLParametersImpl) result.clone();
    }
Initializes the SSL credential for the Spake.
common/src/main/java/org/conscrypt/SSLParametersImpl.java