Date: 2014oct3 Language: Scala Q. Have you found any show-stopper issues with Scala? A. Yes, at least as of scala-2.10.3-8.fc20 it... - It does *not* give a warning when Scala code uses a member that was @Deprecated in a Java class - It does *not* give an error when Scala code doesn't catch or pass on an Exception. - I read that Scala library member Source.fromFile() can throw an exception but Scala doesn't make you do something with it. - In general Scala doesn't check Exceptions. That just seems unprofessional to me. - Slow compiles I like Scala. But these things are crucial for me.