You are right. As you pointed out, my java interface design is not good.
I've changed java interface into java.util.Map and I could pass Clojure's
map to the java interface.
I've also tested clojure.walk/postwork. The clojure.walk library is fine !
Thanks,
Makoto
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Well first I'd say that the Java api you're calling into isn't very good if
it expects specifically java.util.HashMap. Clojure's map data structures
implement java.util.Map so generally they can be passed into Java api
methods that take the interface (good practice).
However, HashMap has a cons
