Spring autowiring component scan good practice

A use-case for Spring component scan

Regular readers of this blog know I’m a big proponent of the Spring framework, but I’m quite opinionated in the way it should be used. For example, I favor explicit object instantiation and explicit component wiring over self-annotated classes, component scanning and autowiring. Concepts Though those concepts are used by many Spring developers, my experience has taught me they are not always fully understood. Some explanation is in order. Self-annotated classes Self-annotated c

good practice cargo culting over-engineering interface

Are you guilty of over-engineering?

If you listen to other language communities - such as Python or Ruby, it seems Java developers have a strong tendency of over-engineering. Perhaps they’re just jealous of our superior platform (wink), perhaps there is some very slight reason that they believe so. I do believe so. And it’s quite interesting that I realized it by doing code review - while I may be guilty of over-engineering myself when writing code. But I’m working on it. Of course, you’re a 'simple' dev

exception management good practice quality

Throwing a NullPointerException... or not

This week, I’ve lived again an experience from a few years ago, but in the opposite seat. As a software architect/team leader/technical lead (select the term you’re more comfortable with), I was doing code reviews on an project we were working on and  I stumbled upon a code throwing a NullPointerException: that was a big coding mistake. So I gently pointed to the developer that it was a bad idea and that I’d like him to throw an IllegalArgumentException instead, which exactly th