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Swing

Hello Swing community While the SAF project is on hold, the Swing team welcomes the active development of the alternative implementations of the Swing framework. I found a few promising projects and put the links to them at the SAF project main page: Better Swing Application Framework guts-gui and don't forget about the mature Netbeans Platform I am happy to promote those projects. If...
on Nov 16, 2009

Ajax

In a recent blog, commenters took me to task for a perceived IE 6 memory leak. It wasn't actually there (they were wrong), but in attempting to prove myself right, I found a couple of memory leaks under IE in JSF's Ajax support. Since I just spent a week learning how all this functioned, I thought I'd set it down so that others could learn from my efforts. Now, none of the information that I'...
on Nov 13, 2009
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on Nov 6, 2009

Community

Received an email from my good friend Daniel deOliveira who runs the DFJUG-Brasilia Java User Group (the largest JUG in the world w/ 30,000+ members) Aaron, bom dia !Do you remember when Matt signed the JEDI partnership document, during last year JavaOne ? You took some photos of he, I, you and Nichole. I'm trying to find them but I believe they are in an old backup and couldn't find....
on Nov 10, 2009
Java Evangelist Carol McDonald sent me a snippet from this blogger: " User Groups: If you live near a major metropolitan area, it's easy to get involved in the local user groups that are there. Most user groups meet once a month, so they don't consume too many evenings when your family expects you to be home. Don't be a passive participant; get involved. Talk about what you've been...
on Nov 9, 2009
Awhile ago, the java.net Program Manager approached me about blogging about some of the day-to-day interactions I've had with the Java community over the years, primarily the Java User Groups (JUGs) and Java Champions program. I get a ton of email from folks who are interested in starting a Java User Group and want to know how to get started. Honestly, I tell them, the best place to learn about...
on Nov 6, 2009
Even if you love Netbeans, don't you think Eclipse is worth $5? http://www.eclipse.org/donate/
on Oct 31, 2009

Tools

In the past weekend I've been able to improve the settings for automated Maven releases that I've blogged about about ten days ago. Peter Mount complemented the information with some practical examples on how to use that stuff invoking Maven with the proper parameters. I've been able to significantly clean up and improve the Maven configuration, so now a staged release can be performed...
on Nov 9, 2009
After the latest upgrade of my Hudson instance, I noticed that a new option in the security matrix appeared: it allows anonymous visitors to have a (read only) look at a job configuration, if the administrator allows it. I think it's a great feature (that I was asking for some months ago), as it allows to share our knowledge about our favourite CI tool. So I've opened most of my jobs and you can...
on Nov 9, 2009
As a programmer, I spend a lot of time fixing bugs. And a considerable portion of that is the time spent on reproducing a problem. Here is how a typical such session goes. Your user reports that your program doesn't work and throws such and such exception. Or given the symptom he's describing, you suspect some "if" statements to be evaluating to false. If you are lucky and experienced,...
on Nov 8, 2009
Today I've made some improvements with my Mercurial + Maven + Hudson setup - and reached a new level of karma, being able to do automated releases. Let's go in order. First let me recap what happens with the Maven release plugin (mvn release:prepare release:perform) and Mercurial: A check is performed that there are no uncommitted changes and a build is performed as a validity proof. All the...
on Oct 29, 2009

Deployment

With the newcomer Vaadin module I updated the Arena Project script to support builds on Windows platform. Not a big deal in terms of configuration but it is worthy a notification in case you had tried to build the project before and got frustrated with the Platform Classifier restricted to the UNIX-family. Why to use Platform Classifiers? The lack of a good Maven support for the Glassfish...
on Nov 9, 2009
In this two part article, I will explain how to configure a web application built with Maven to support "branding", or skinning. That is, support different distribution skinned with particular images, logo, background, text. In the end we just want to keep separated the static contents and choose the right set when we package our application so that the result is a war with just the...
on Nov 7, 2009

J2EE

Hope you have read my last blog on using SailFin CAFE with web applications. Mohit has added an entry on how to enable Communication capabilities in JSPs. The approach is exactly same except that the CommunicationSession object is available as a session attribute. Take a look!
on Nov 8, 2009
Overload protection feature has been part of earlier releases of SailFin, lets start by describing the what can be improved in the current implementation. The algorithm (in the earlier releases) for detecting an overload was based on the fact that if a certain number of continuous samples remain above the configured threshold then the system is overloaded. This was a simple and...
on Oct 28, 2009

Servlets

So far I have described how create server applications that handle call, conference and IM using SailFin CAFE. In this edition lets take a look at how to add communication capabilities to web applications in a (very) simple way. I like to start with the code. So, here is some code that implements making a phone call between two parties from the web application. package my.test;import javax....
on Nov 4, 2009

Web Applications

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on Nov 3, 2009

GUI

It's already five months since the version 1.0 have been announced at JavaOne. Today, new version of the SwingX have been released. This release is first Java 6 only compatible release. Setting base line to Java 6 allowed us to drop all the extra code necessary to maintain backwards compatibility for functionality added to the cora Javasince the release of Java 5. So as of today, you can benefit...
on Nov 2, 2009

Programming

Let me introduce a new language named pseudo (Why this name ? Why another language ? Why God ? all these questions will be answered in a later blog). One great feature of this language is that it allows gradual typing, i.e. you can assign a type to a parameter, a local variable, etc. or not. If a variable as no type, the compiler consider it as any. You can assign any value...
on Nov 1, 2009
In my last attempt to stress the JavaFX platform, I ported the Strange Attractor demo/benchmark. Different from JavaFX Balls, this is not scenegraph-driven animation, but old-school "pixel by pixel" drawing… still, makes for another batch of interesting findings, including a few issues in the JavaFX Script language and its compiler, and other topics like fractal maths, BigDecimal...
on Oct 29, 2009