Iterables produced by Guava functional constructs fail to serialize correctly

[cowtowncoder]

(moved from FasterXML/jackson-databind#665 by @prb)

This issue is an old one apparently:

https://jira.codehaus.org/browse/JACKSON-876

Here's a minimal reproduction:

Iterables.transform(ImmutableList.of("mr", "bo", "jangles"),
                    new Function<String, String>() {
                      @Override
                      public String apply(@Nullable String input) {
                        return new StringBuffer(input).reverse().toString();
                      }
                    })

[prb]

The serialization is {"empty":false}.

[cowtowncoder]

I think this is same as #46, fixed in 2.4.2.