FasterXML/jackson-core — pull request #150 by el-toro (2014-08-19 18:18:09+00:00)
Title: Support JsonInclude.Include.NON_EMPTY also for Map values

JsonInclude.Include.NON_EMPTY works fine for empty String values in POJOs.
Currently we have no POJO model and use Groovy maps. In this case JsonInclude.Include.NON_EMPTY
has no effect. It would be great if this would be supported for maps too.