How to address properties with "." in the key name in spring 3.0 @Value tag

@Value("#{myProperties.prop_part1_part2}")

works but

@Value("#{myProperties.prop.part1.part2}")
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Doesn't.

How do I address a property with "." in the key ?

I haven't used spring 3 yet, so my answer is a shot in the dark. Try

@Value("#{myProperties['prop.part1.part2']"}