code: static <T, U, R> R privilegedExecution(BiFunction<T, U, R> function, T t, U u) {
          return privilegedExecution().execute(function, t, u);
      }
docs: Execute the given function, in a privileged block if a security manager is checking.
  @param function the function
  @param t        the first argument to the function
  @param u        the second argument to the function
  @param <T>      the type of the first argument to the function
  @param <U>      the type of the second argument to the function
  @param <R>      the type of the function return value
  @return         the return value of the function