Virtually all of us are guilty of copy and paste “reuse.”  There are different types of reuse though and each come with their own set of problems and gotchas. Copy/paste a method or large code snippet This is the kind of reuse that almost everyone will agree is bad.  When all is said and done [...]

For today’s post we’re going to delve into one of the least talked about but extremely common tasks a software developer works with, input validation, or error checking as its more commonly referred to as. Input validation is defined as taking what a user enters on screen, verifying it meets certain requirements, and returning a [...]

Scott’s recent post on EJB3 got me thinking about annotations as a “replacement” for XML. By now, we all know why shoving everything in XML isn’t the best of ideas.  I think shoving everything in Java code is bad too.  In particular deployment time concerns (like security) shouldn’t require a recompile. JEE 5 offers the [...]