@Override
    public SSLContext get() {
        return VespaZookeeperTlsContextUtils.tlsContext()
                                            .orElseThrow(() -> new IllegalStateException("Vespa TLS is not enabled"))
                                            .sslContext().context();
    }
Provider for Vespa {@link SSLContext} instance to Zookeeper.

@author bjorncs
zookeeper-client-common/src/main/java/com/yahoo/vespa/zookeeper/client/VespaSslContextProvider.java