How to serialize a Map<String, String> using Simple XML?

How would you go about serialising a Map using s开发者_开发技巧imple XML so that it looks something like:

<elem foo="value">key</elem>

Instead of the normal

<elem foo="key">value</elem>

(The map is one to many, and since this will be edited by humans, I wanted it to be clearer.)

[EDIT]: Doesn't Fix.

Have you tried something like:

@ElementMap(entry="property", value="value", attribute=true, inline=true)
private Map<String, String> map;

or some combination, i.e. to use the other attributes of the @ElementMap annotation too?