Can not serialize guava Iterables

[cowtowncoder]

(moved from FasterXML/jackson-databind#517 reported by @chisui)

---

In 2.4.1.3 this works

new ObjectMapper().writeValueAsString(new Iterable<Integer>() {
  @Override
  public Iterator<Integer> iterator() {
    return ImmutableList.of(1, 2, 3).iterator();
  }
});

but this doesn't.

new ObjectMapper().writeValueAsString(Iterables.limit(Iterables.cycle(1,2,3), 3));

[cowtowncoder]

As per commit, will also be in 2.3.5, should that be released.

[prb]

I'm still getting this on 2.4.4. Potentially mitigating circumstances:

• The Iterable<String> in question is a public member on a class that is serialized.
• The class is annotated with @JsonInclude(JsonInclude.Include.NON_NULL).

[prb]

Also, Guava version 17.

[prb]

This appears to be resolved with 2.5.0-rc1, FWIW.

[christophercurrie]

Specifically, I think #58 fixed this.

[christophercurrie]

I think 2.4.5-SNAPSHOT has the fix, as well.