text: #include "FWCore/Concurrency/interface/Xerces.h"
  #include <xercesc/parsers/XercesDOMParser.hpp>
  #include <vector>
  #include <thread>
  #include <iostream>
  
  XERCES_CPP_NAMESPACE_USE
  
  void
  testInit()
  {
    cms::concurrency::xercesInitialize();
    {
        std::cerr << std::this_thread::get_id() << std::endl;
        XercesDOMParser parser;
    }
    cms::concurrency::xercesTerminate();
  }
  
  int
  main()
  {
    std::vector<std::thread> threads;
    threads.emplace_back(testInit);
    threads.emplace_back(testInit);
    threads.emplace_back(testInit);
    threads.emplace_back(testInit);
  
    for (auto &thread : threads) 
      thread.join();
  }
  