[SWengineer]

A good post, recommending the use of Scala. I do agree with his point about the differences between scala collections and java ones. Interfacing with java libs which return java collections often requires conversions to scala collections before I can use the full power of scala. That said I'd still pick Scala any day of the week. The Scala book he references is surprisingly good, I bought it recently.

[weego]

the conversions thing is true, but providing a wrapper class and an implicit utilizing scala.collection.JavaConverters makes that an issue you should only have to solve once.