Really, it is just becoming increasingly difficult to see how proponents of Scala can credibly claim any kind of developer productivity gains. I can only imagine how much time your average Scala developer spends solving problems of accidental complexity that simply do not exist in more mature languages.
As a Scala developer, let me shed some light on this. In the last few months I have spent exactly zero time on this problem. It was a minor issue when 2.9 came out. No one forces you to upgrade, and we didn't till all our dependencies worked on 2.9.
Time spent: zilch, perhaps because most of my dependencies are java libs not scala ones. Like many Java devs starting out using Scala as a 'better java' which means adding more scala libs over time. It's definitely very pleasant to code in Scala vs Java, def more productive, to a surprising extent even. The compatibility issue needs to be addressed though.
Same here, zero time spent on this. Scala is a joy to program in. It's good to see these kinds of postings with complaints and suggestions. They'll move the language and the ecosystem forward.
