blog.kdgregory.com

The carburetor is a simple, elegant device for providing fuel to a gasoline engine. So simple and elegant that it was the primary mechanis...

Java turns 18 this year. I've been using it for 14 of those years, and as I've said before, I like it , both as a language ...

Yesterday I answered a question on Stack Overflow (something I don't do very often any more, for reasons I won't go into here). ...

JSP scriptlets have a bad reputation; everyone can point to their favorite example of scriptlet abuse. In my case, it was a 12,000 line (ye...

This weekend I made some changes to BCELX , my library of enhancements for Apache BCEL . These changes were prompted not by a need to acces...

By the mid-2000s, the structure of an MVC web-app had gelled: business logic belonged in the model (which was usually divided into a servic...

The Actron CP9580 is an automotive scantool. For those who aren't DIY mechanics, it connects to your car's on-board computer and ...

This is another posting prompted by a Stack Overflow question . The idea of a defensive copy is simple: you have a method that returns some...

Following last week's posting about “text files,” I wanted to look at one of the most common ways to deliver text: the web. The HTTP pr...

Back in the early 1990s, life was easy. If you worked in the United States, “text” meant ASCII. If you worked in Canada or Europe, it might...

Our highest priority is to satisfy the customer through early and continuous delivery of valuable software. That's one of the b...

I have an admission to make: it wasn't until October 1999 that I truly “got” object-oriented programming. Perhaps that doesn't seem...

Back to the wishlist service, and it's time to look at the client side. In particular, the mechanism that the client uses to submit req...

One of the great things about developing Java applications is the wealth of open-source libraries available. The Jakarta Commons libraries ...

When I'm giving an interview, one of my favorite questions is “Are you familiar with Design Patterns? Please describe your favorite pat...

There are a lot of ways to test a web application: in-container testing using tools such as Cactus , full client-server testing using tool...

Working software is the primary measure of progress There's a great feedback loop from seeing your code run in situ . Even if y...

My last few postings have discussed the design of my wishlist service in very broad strokes: here's what I want to accomplish, here are...

One of the repeated themes in Founders at Work is how startups were unprepared for scalability issues, particularly in the cases where the...

Security is the red-headed stepchild of the web-service world. Sure, there's WS-Security , which may be useful if you're using SOAP...