One of the old bits of tuning advice given when Java memory management was not as tall as it it today was to set max heap to min heap. After all, we don't really want the JVM messing around with memory when it should really be getting on with things. Fast forward a few years and the adaptive memory management picture has matured considerably.
How to create a kind of volatile final field i.e. a static field that will be considered as a constant by the VM but that can be updated as well using JSR 292 API.
Just wrapped up my last performance tuning course for this year and for the second time running, some members of my Parisian group had the opportunity to run the exercises on virtualized hardware. The results were interestingly horrible
Using HtmlUnit, Glassfish and Maven for integration testing
Use HtmlUnit and Maven for integration testing
Perfection is achieved through times.
How someone can improve if he has no clear vision of what he could become? I'm asking this tough question to myself while reading to the definition of JSF. As it is written in its specification, JavaServer Faces is a user interface framework designed to significantly ease the burden of writing and maintaining applications that run on a...
Ladies and Gentlemen, today, while I'm writing this blog post, I'm one-eyed. Last saturday, I woke up earlier in the morning and I noticed that I couldn't see out with my right eye. I went to see an ophtalmologist to find the cause and the solution and now I'm taking drugs. I'm sharing this crazy experience with you only because...
A new tutorial exercises VisualLangLab using all the examples and techniques in Chapter-3 "A Quick Tour for the Impatient" of the book "The Definitive ANTLR Reference". A new "WildCard" pseudo-token that matches any other defined token has been added to facilitate recovery from grammar errors in the input. Read about the various other improvements that make VisualLangLab even more user-friendly.
Aliber is an opensource project for leave, created by Edy Setiawan, which win Inaicta (Indonesia ICT Award), a growing edition of APICTA, win as winner 1st in Indonesia Mobile Competition in Malang/VEDC. but he cannot go to Thailand for APICTA because "juror" said not good product, but MERIT ..strange conspiration :(
Eclipse is famous IDE in em Java, follows the open source model. The Eclipse project was stated by IBM that does the first version, then donated like open source for the community. The begin costs was above 40 millions. Nowadays, the Eclipse is one of the most used worldwide. Has important feature how the SWT uses and not the Swing, there are too many plug-ins...
2011, and I'm back to my favourite conference. In the past two years I attended JavaOne and Jazoon, but for different reasons I wasn't able to go to Antwerpen. A number of things have changed in the meantime. Sun is no more here, but I already absorbed the shock at JavaOne 2010. Devoxx is held in November since a couple of years (previously it was in December). For my desire to match a...
My previous "State of Java" posts highlighted JUG-AFRICA and the JCP's new openness. In this post, I talk about the new cooperation between JUGs and the JCP, which is exemplified by the Adopt-a-JSR initiative...
When I first heard that Oracle planned to start having JavaOnes on continents other than North America, I thought that was an excellent idea. This coming Tuesday through Thursday, the second JavaOne Latin America will take place in São Paulo, Brazil...
Devops and RPM Distribution
Regularly deploying and provisioning RPMs is increasingly becoming a common need. With devops automating every aspect of deployment, including setting up new hosts in virtualized environments, packaging systems such as RPM are getting more and more important. Managed RPMs provide a great level of control over installations and easy upgradability.
Amazon’s own AWS...
I awoke to my mobile ringing. Our support staff was having issues. (The beauty of the web is everybody around the world can use your application, the ugly part of the web is everybody is using your application 24x7.)
Pages are broken and things are not displaying.
I GTM(gotomeeting) with the support staff to see the issues first hand.
Things are working for me, but not support. Pages...
In 1996, a group that I was working with devised a development process which we called Defect Driven Design, otherwise known as D3 (D-Cubed). We were a bit disappointed by not surprised that D3 never really caught on but just recently I saw a glimmer of hope for a revival.
In my last blog I’ve introduced JavaFX 2.0 beta, describing an initial port of JavaFX Balls, also in beta stage at that time. Now I finally finish JavaFX Balls 3.
Look ma, no design!
I don’t pretend to be a designer, and the consequence is that when I make a mashup of animation, video and web, that’s the result. Get the source code here.
I’ve added new layers of content...
You know how nowadays everyone loves to tweet at conferences or presentations in middle of the talk? Sometimes you as a presenter might want to return the favor and tweet something in response. If you know upfront that what you are going to present will provoke a response from audience, you can now actually put the tweets in your presenter notes and have Keynote or PowerPoint to tweet on the...
Web Development Tools
The second edition of Java Magazine (November/December) will go out in few days. In the Part 2 of the my article, you will see in detail how to use JSON to handle the response returned to the HTML5 client.
The first Part 1 of my article published in the first edition of Java Magazine (available here ) has shown how you can create and deploy quickly a Java EE application that uses RESTful Web services with NetBeans.