public void refreshSSLProperty() {
    if (isSSLProtocolExplicitlySet()) return;

    if (SvnConfiguration.SSLProtocols.all.equals(myConfiguration.getSslProtocols())) {
      System.clearProperty(SVNKIT_HTTP_SSL_PROTOCOLS);
    } else if (SvnConfiguration.SSLProtocols.sslv3.equals(myConfiguration.getSslProtocols())) {
      System.setProperty(SVNKIT_HTTP_SSL_PROTOCOLS, "SSLv3");
    } else if (SvnConfiguration.SSLProtocols.tlsv1.equals(myConfiguration.getSslProtocols())) {
      System.setProperty(SVNKIT_HTTP_SSL_PROTOCOLS, "TLSv1");
    }
  }