You can easily control logging level with slf4j etc, you can run maven in quiet mode if you want to see only errors. I don't think these are java lang issues, its more of a people problem that they don't quite understand the language and the tools they use in depth.

I've done my fair share of work in those languages and it almost never has anything to do with the last line. Typically following back into some stupid === vs. == error or some dynamic typing issue many frames up the call stack. Even C++ is a nightmare to traceback when you use boost/STL heavily