internalRegisterConverter(Boolean.class, conv);
internalRegisterConverter(boolean.class, conv);
conv = new DoubleConverter();
internalRegisterConverter(Double.class, conv);
internalRegisterConverter(double.class, conv);
conv = new IntConverter();
internalRegisterConverter(Integer.class, conv);
internalRegisterConverter(int.class, conv);
conv = new LongConverter();
internalRegisterConverter(Long.class, conv);
internalRegisterConverter(long.class, conv);