code: private static String[] decideCipherSuites()
    {
      String sysCipherSuites = System.getProperty("https.cipherSuites");
  
      String[] cipherSuites = sysCipherSuites != null ? sysCipherSuites.split(",") :
                              // use jdk default cipher suites
                              ((SSLServerSocketFactory) SSLServerSocketFactory.getDefault())
                                  .getDefaultCipherSuites();
  
      // cipher suites need to be picked up in code explicitly for jdk 1.7
      // https://stackoverflow.com/questions/44378970/
      if (logger.isTraceEnabled())
      {
        logger.trace("Cipher suites used: {}", Arrays.toString(cipherSuites));
      }
  
      return cipherSuites;
    }
docs: Decide cipher suites that will be passed into the SSLConnectionSocketFactory
  
  @return List of cipher suites.