code: public SSLContext createSSLContextFromKeystores(boolean isServer) {
          String protocol = sslConfig.getSSLProtocol();
          try {
              KeyManager[] keyManagers = null;
              if (sslConfig.getKeyStore() != null) {
                  KeyStore ks = getKeyStore(sslConfig.getKeyStore(), sslConfig.getKeyStorePass());
                  // Set up key manager factory to use our key store
                  kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
                  if (ks != null) {
                      kmf.init(ks, sslConfig.getCertPass() != null ?
                              sslConfig.getCertPass().toCharArray() :
                              sslConfig.getKeyStorePass().toCharArray());
                      keyManagers = kmf.getKeyManagers();
                  }
              }
              TrustManager[] trustManagers = null;
              if (sslConfig.getTrustStore() != null) {
                  KeyStore tks = getKeyStore(sslConfig.getTrustStore(), sslConfig.getTrustStorePass());
                  tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
                  tmf.init(tks);
                  trustManagers = tmf.getTrustManagers();
              }
              sslContext = SSLContext.getInstance(protocol);
              sslContext.init(keyManagers, trustManagers, null);
              int sessionTimeout = sslConfig.getSessionTimeOut();
              if (isServer) {
                  if (sessionTimeout > 0) {
                      sslContext.getServerSessionContext().setSessionTimeout(sessionTimeout);
                  }
              } else {
                  if (sessionTimeout > 0) {
                      sslContext.getClientSessionContext().setSessionTimeout(sessionTimeout);
                  }
              }
              return sslContext;
  
          } catch (UnrecoverableKeyException | KeyManagementException |
                  NoSuchAlgorithmException | KeyStoreException | IOException e) {
              throw new IllegalArgumentException("Failed to initialize the SSLContext", e);
          }
      }
docs: This is uset to create the sslContext from keystores.
  
  @return sslContext