code: public SslContextBuilder ciphers(Iterable<String> ciphers, CipherSuiteFilter cipherFilter) {
          checkNotNull(cipherFilter, "cipherFilter");
          this.ciphers = ciphers;
          this.cipherFilter = cipherFilter;
          return this;
      }
docs: The cipher suites to enable, in the order of preference. {@code cipherFilter} will be
  applied to the ciphers before use. If {@code ciphers} is {@code null}, then the default
  cipher suites will be used.