code: private static void disable2PC(String extractDirectory, String serverName) throws IOException {
          String fileName = extractDirectory + File.separator + "wlp" + File.separator + "usr" + File.separator + "servers" + File.separator + serverName + File.separator
                            + "jvm.options";
          BufferedReader br = null;
          BufferedWriter bw = null;
          StringBuffer sb = new StringBuffer();
  
          try {
  
              String sCurrentLine;
              File file = new File(fileName);
  
              // if file doesnt exists, then create it
              if (!file.exists()) {
                  boolean success = file.createNewFile();
                  if (!success) {
                      throw new IOException("Failed to create file " + fileName);
                  }
              } else {
                  // read existing file content
  
                  br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName), "UTF-8"));
                  while ((sCurrentLine = br.readLine()) != null) {
                      sb.append(sCurrentLine + "\n");
                  }
              }
  
              // write property to disable 2PC commit
              String content = "-Dcom.ibm.tx.jta.disable2PC=true";
  
              bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file.getAbsoluteFile()), "UTF-8"));
              bw.write(sb.toString());
              bw.write(content);
  
          } finally {
              if (br != null)
                  br.close();
              if (bw != null)
                  bw.close();
  
          }
  
      }
docs: Write property into jvm.options to disable 2PC transactions.
  2PC transactions are disabled by default because default transaction
  log is stored in extract directory and therefore foils transaction
  recovery if the server terminates unexpectedly.
  
  @param extractDirectory
  @param serverName
  @throws IOException