docs: private static ClassLoader getParentCl()
      {
          try
          {
              Method m = ClassLoader.class.getMethod("getPlatformClassLoader");
              return (ClassLoader) m.invoke(null);
          }
          catch (NoSuchMethodException e)
          {
              // Java < 9, just use the bootstrap CL.
              return null;
          }
          catch (Exception e)
          {
              throw new JqmInitError("Could not fetch Platform Class Loader", e);
          }
      }