How to write multiple line property value using PropertiesConfiguration?

Question

I have a properties file with a property with a List value (comma separated), how to write this property in a multi-line ? (backslash after the comma)?

I can\'t find

Answer 1

You need to combine the \n character inside the content and the line continuation escape (\ at end of line) to get a multi line property actually be represented in the properties file and in the returned value:

KEY1=first line\n\
second line\n\
last line
KEY2=another key

Not sure if commons-configuration can be configured to actually use this syntax for writing.