How can I write Java properties in a defined order?

Question

I\'m using java.util.Properties\'s store(Writer, String) method to store the properties. In the resulting text file, the properties are stored in a haphazard order.

Answer 1

To use a TreeSet is dangerous! Because in the CASE_INSENSITIVE_ORDER the strings "mykey", "MyKey" and "MYKEY" will result in the same index! (so 2 keys will be omitted).

I use List instead, to be sure to keep all keys.

 List