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Programming

There are times when things hurt so much that you feel urged to blog about them once solved. This is one of them. Our company is using XSL heavily for reporting (generating vector charts in PDFs on the fly from data analyzed by GlassFish), so it is not very amazing that we found some bugs in the XSL transformer (a.k.a "JAXP Implementation") contained in GlassFish. As we're not so fast...
on Mar 16, 2010
Talking about messaging imply two basic functionalities which all other provided features are built around them; these two capabilities include support for topics and queues which basically lets a message to be consumed by as many interested consumer  as subscribed or at just one of the interested consumer(s). Messaging middleware was present in the industry before Java come along and every one...
on Mar 3, 2010
I was going through the documentation of Spring Roo, version 1.0.1 while preparing a talk for JDC 2010 about the Spring Roo .. No need to mention the Roo is awesome, amazing and not Magic :-) Ben Alex , Stefan Schmidt did a great job really in this project. Smart architecture! "The automated startup-time scan is also very useful as you upgrade to newer versions of Roo. Often a new...
on Feb 13, 2010
Christmas holidays is one of my favourite moment in the year, I have time to see my relatives, read books, play with my kids and hack a little bit. Forewords I think I don't like the most in the strawman proposal is that the syntax for function type and for lambda literal reuse the same symbol '#'. It's something that I've observed when teaching C. The C syntax use * when you...
on Dec 27, 2009
We can't live without Javadoc, but even if it useful, it's not complete. One missing thing is UML within the Javadoc. To add UML to your Javadoc, is quite simple. You need to add Graphviz into your maven build. First you need to download and install Graphviz. Go there Graphviz After that you should add the variable GRAPHVIZ_HOME (that point to the installation folder) into your system. The...
on Dec 26, 2009

Linux

There are several ways to enable user authentication for web based applications, like .htaccess files, plain tekst files, databases, LDAP, etc. They all have their pros and cons. In case a central, flexible solution is needed, either a database or LDAP solution can be used. I chose for an LDAP solution since it can be reused by many web and application servers and the applications that run on...
on Mar 15, 2010

EJB

Modularity is the essential design and implementation consideration which every software architects and designers should have in mind to get an easy to develop, maintain and extend software. GlassFish is an application server which highly benefits from a modularity system to provide different level of functionalities for different deployment and case studies. GlassFish fully supports Java EE...
on Mar 15, 2010
In the past few month several Java EE 6 related JSRs (Java Specification Requests) have been finalized. The final ballot for them ended on November 30 and all were approved. Today, December 10, 2009, Java EE 6 and GlassFish v3, THE reference implementation of Java EE6, are released. Four and a half year after the release of Java EE 5 we enter the next Java EE era. GlassFish v3 is the first...
on Jan 6, 2010
NetBeans 6.8 released coordinated with GlassFish v3 today. NetBeans 6.8 can be considered a fine step ahead of NetBeans because Sun is officially supporting the NetBeans RCP platform as a product from now on. NetBeans 6.8 features are as follow: Java Enterprise Edition 6 support Web Projects with JavaServer Faces 2.0 (Facelets) JavaFX 1.2.1 support Kenai.com: Connected Developer Full support...
on Dec 17, 2009
This is a very basic review of active and available open source Java EE Application servers and Servlet container (Web containers) to let the community know which active containers are available and what is the general status of each container. The article can simply act as a start point for anyone need to select one of them for later use in development or product. Detailed comparison of these...
on Nov 17, 2009

Web Applications

I wrote about Magnolia cache few times already since it have been re-implemented for Magnolia 3.6. And it seems like with Sprint 4 of Magnolia 4.3 it came back to bite me. There was a bunch of tickets related to various aspects of the cache. Most of it was related to the fact that the default cache key (only URI) was not enough for many installations which were...
on Mar 11, 2010

Open Source

After nearly 10 years at Sun, and 5 years as Chief Open Source Officer, I have now left Sun. You can read my reflections on those years on my new personal blog (to which you may wish to subscribe).
on Mar 9, 2010
The scoop of these days is the “climagate” - a hacker stole and then published on the web a bunch of e-mail messages and documents from a British university and those documents allegedly affirm, among other things, that some data sets used to proof the Anthropogenic Global Warming (AGW) have been “massaged” way beyond the legit terms. Depending on the country you live in, you'll find a widely...
on Nov 24, 2009

Community

For many years I am using XSLT now for a lot of tasks in both, development and runtime environments: Source generation, creating HTML from XML data, or even rendering SVG vector graphics from XML finance data. But what really bothered me was that the XSLT transformer contained in Java (even in Java 6's latest release) was just able to do XSLT 1.0 but not XSLT 2.0. XSLT (and XPath) 2.0 comes with...
on Feb 6, 2010
Over the past decade, OpenSource became a big hype. At the peak of the hype, big stakeholders like IBM, Oracle and Sun (and even Microsoft and SAP) turned a lot of their previously proprietary code into OpenSource. While they tell us that they do it because they are so noble and like to exploit the community's knowledge, typically the open sourced software is only for free in part or is still...
on Dec 10, 2009
Shadow copy of http://www.egjug.org/node/956 I would like to invite you to the Spring Integration session organized by EGJUG. We will talk also in quick about the upcoming JDC 2010 and may go to public restaurant to have light dinner after the SpringFramework night. Date: 15 December 2009 Time: 6:30 PM - 8:30 PM Place: FCI-CU, check the map. Fees: FREE forever How to register: Send your name,...
on Dec 8, 2009
I authored a new refcard covering GlassFish v3, This refcard is different from my previous one which covers GlassFish v2. This new refcard discuss the following items:   Introduction to GlassFish application server v3. GlassFish v3 versions, installation and directory structure. Glassfish v3 daily administration tasks. Glassfish v3 Restful interface for monitoring and administration. GlassFish...
on Nov 22, 2009

GUI

In my famous company innoQ I currently have the opportunity to work on a real cool tool: Bundle-Bee. It claims to be able to take any OSGi bundle and distribute the computational load to an ad-hoc grid (e.g. all machines in an office) without special setup or configuration. We just released version 0.5.3 which is still very restricted and far from feature complete - we don't even...
on Jan 28, 2010

J2EE

According to the PrimeFaces website, "PrimeFaces is an open source component suite for Java Server Faces featuring 70+ Ajax powered rich set of JSF components. Additional TouchFaces module features a UI kit for developing mobile web applications.". Since it is an OpenSource JSF implementation that is very close to releasing JSF 2.0 compliant components, I figured it was time to try it...
on Jan 7, 2010

Blogging

When we start working on a new project as an architect we are dealing basically with a set of requirement which our architecture should be able to act as a foundation for the design and implementation of those requirements in form of a software system. to let the customer fulfill its requirements in a better and more efficient way. Preparing the architecture for a software system means not only...
on Nov 22, 2009