No Ruby, No Erlang? Yes... why not... They're no longer the most important thing/deciding factor these days. Hadoop, Hbase, Cassandra, Lucene are all written

No Ruby, No Erlang? Yes... why not... They're no longer the most important thing/deciding factor these days. Hadoop, Hbase, Cassandra, Lucene are all written in Java and require some Java integration. I'm pretty sure there are bridging/interfacing library in other languages but I suppose most people don't really care about those languages. Stick with Java and move the train forward kind of attitude perhaps. Spring Framework, Spring MVC, JAX-RS, JAX-WS, Hibernate/JPA2/Spring-Data and some Java-based DB migration library (Flyway) seem to fill the sweet spot that Rails had to offer a few years ago. I used to hate Maven but now I think Maven is one of the killer apps/frameworks/tools in Java.