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Deployment

A colleague of mine just pointed out that in Richard Monson-Heafel’s EJB book (3rd edition) configurations like Stateless Session Bean (SLSB) -> Stateful Session Bean (SFSB) are considered meaningless. I understand that any EJB book cannot deal with all possible scenarios otherwise you need a truck to take the book home but I find it too interesting not to talk about. Luckily I can discuss in my...
on Oct 2, 2003
Finally I found time for a technical log here at Java.net. This time I want to discuss a shortcoming of the EJB specification and how they can be fixed to make the life of EJB developers and application server administrators easier and the deployed applications more robust. Originally the EJB specification assumed that the applications are deployed at startup of the application server and the...
on Sep 30, 2003
XML and SOAP messages may mask the the underlying infrastructure from developers but the data center still needs to be brand aware. There are many conversations on the topic of Java vs. .NET and how Web Services might be the holy grail or glue to bring it all together. Philip Brittan points out some interesting things in his Microsoft and Web Services weblog entry that got me to thinking about...
on Sep 23, 2003
I recently wrote an article, "Create Desktop Applications with Java-Based Web Technologies" for O'Reilly ONJava.com, and I was just pondering some of the feedback I got. (If you're too busy to read the article, basically I write about using a web application in a bundled Tomcat to build a desktop application w/installer). First off, people seem to think that bandwidth is *awfully* cheap nowadays...
on Sep 22, 2003

Tools

Dear John…er...I mean Debugger: We’ve had a really good time together over the past 20 years. There’s never been just one of you of course. My debuggers have changed languages many times. First, it was Pascal, then C, then C++, and now, naturally, Java. But throughout our relationship, your purpose in my life has always remained the same. You helped me weed out those nasty bugs and make my code...
on Oct 1, 2003

Performance

The September issue of the Java Performance Newsletter was published. Here is the content list. Timers and audio performance How do you synchronize audio and video frames? What is Java's current capability for recording audio samples? Why is clock skew important to audio recording? In this article Scot Mcphee describes what you need to know about timers for recording audio samples from Java. All...
on Oct 1, 2003

Business

One valuable capability of open standards is to let customers decouple application decisions from infrastructure choices. I recently spoke at a technology conference as a part of a panel, and one question from the audience was about which open standards were most important. My response was that there are many important open standards, but that one crucial capability that customers are looking...
on Sep 30, 2003
I commented recently that, while we can each take steps to prevent virus and worm attacks on our computer systems, the biggest threat we actually face is the fact that we have a computer monoculture. Most of the world’s computers run Microsoft’s operating systems, thus most of the world’s computers are vulnerable to the same viruses and worms at the same time. The only way to stop this is to...
on Sep 26, 2003
My company is not really an eXtreme Programming shop, but we are somewhat inspired by it. We are currently doing a project in which some people are involved in pair programming. I recently witnessed an amusing situation involving this practice. The team that works at the other desk in my office found a bug which they could not figure out. They came to the conclusion that it might be in the...
on Sep 23, 2003
Industry gurus claiming that technology no longer matters to Corporate America may be drawing the wrong conclusion from the wrong evidence. Just wanted to let everyone know that I wrote an article titled Building software that matters that was published on ZDNet today.
on Sep 17, 2003
I noticed that Chris Campbell's blog often includes a note about what music he was listening to as he wrote. This seems like a nice personal touch so I thought I'd copy it. I'm listening to a funny John Prine song about predicting the future and the chorus goes like this: We are living in the future, I'll tell you how I knowI read it in the paper fifteen years agoWe're all driving...
on Sep 16, 2003

Patterns

Joel Spolsky ("Joel on Software") built his company offices designed for actual programmers and their teams. A radical notion, really. Here's one sample: Put lots of outlets in each office at desk height. No reason to be crawling on the floor with your butt in the air as an invitation to anyone passing by. Also some cool ideas about floor plans to increase everyone's light, etc. Okay, his...
on Sep 28, 2003

Swing

It's Friday so I thought I'd do another Swing hack: When I'm doing really complicated Swing layouts I often have trouble figuring out which component on screen matches the one in my code, especially if there are custom widgets or subclasses that look the same as normal ones (like formatted text fields) or that don't have easy to see borders. To assist in debugging these I created a component...
on Sep 26, 2003

J2EE

While Matt was talking about the Tomcat Service Manager, coincidentally, I was trying to install Tomcat 4 as a service on a Windows 2000 machine yesterday. For various reasons, I didn't want to install Tomcat via the .exe and therefore had to hunt around for the command line that installs the NT service. For (my) future reference, here it is, split over several lines for readability. set...
on Sep 26, 2003
In the first posting in her new weblog, Anne Thomas Manes talks about the idea of porting Jakarta to Mono, the project to implement C# and the core of the CLI from .NET on Linux. She says: But from the moment Miguel initiated the Mono project, I’ve been worried about its future potential. I’ve feared that it would go the way of DCOM on Unix. (DCOM is an Open Group standard – and Microsoft...
on Sep 14, 2003

Open Source

I've found I want to reuse code from almost every project I've ever worked on. Plus other people treat my code as library code years longer than I thought possible. So when I create Java code, I produce reusable .jars of code. Structuring the project correctly at the beginning to help reuse seems to be important, but isn't without cost. I have settled on one way, but am not convinced it's the...
on Sep 25, 2003
I plan to use autoboxing in a project, so I'm responding to Erb Cooper's damning blog, "The Terror That Is Autoboxing." I haven't read the spec yet -- Only JCP members have had the chance. I think we should reserve judgment at least until we can see what the JSR expert group has come up with. Under the eye-catching headline, Erb's complaint is that autoboxing could create a lot of objects for no...
on Sep 18, 2003

Community

I spend most of my time as a Java developer happily writing code without explicitly thinking about encapsulation, polymorphism, and inheritance as underlying principles. I mean those things are given. It would be like noticing wheels are round each time I get in my car. Just like I exploit the roundness of my tires as I tool down the street, I make use of the object-oriented features of Java...
on Sep 24, 2003
Lately you hear many software engineers complaining about competition in the software industry from foreign workers or foreign companies starting to compete. Finally, it seems, that the US is not an island anymore and that we are facing major competition. For me, I cannot comprehend the outcry maybe because I had to fight, learn, change and risk a secure lifestyle to become what I am now. That...
on Sep 18, 2003
I wanted to start my weblog at Java.net a little bit differently but as a former H1-B visa holder Sue’s Spielman weblog with the title “Outsourcing in my company? I do not think so.” stroke a cord and I had to respond. The most replies turn around these sentences: I am a true believe that the legislation currently being proposed to lower the H-1B and L-1B visa quotas will not go far enough. I...
on Sep 12, 2003