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Felipe Gaucho

Felipe Gaúcho works as senior software engineer at Netcetera AG in Switzerland. He is a well known Brazilian JUG leader and open-source evangelist. Felipe works with Java since its early versions and has plans to keep that Java tradition as it is. When he is not coding, he prefers to listen reggae and travel around with his lovely
wife Alena and his son Rodrigo.

 

Articles

PUJ, a Jug Contest, JavaOne 2009 Podcast
Felipe Gaucho tells Jim Wright about the PUJ (Prêmio Universitário Java) Java User Group Contest
Exposing Domain Models through the RESTful Service Interface, Part 1
JAXB and JPA can be combined to reduce the boilerplate code of Java EE applications and to optimize the performance of RESTful web services--a flexible solution, which preserves the original domain model while following the JPA, JAXB, and HTTP standards.
The Requisites of a Question-Management System
The Quaestio module of the java.net Schoolbus project hopes to make it easier for teachers and professors to manage the questions they use on tests, quizzes, and homework. As project contributor Felipe Gaucho explains, hammering out the needs, goals, and concepts of such a system is tricker than...

Weblogs

Felipe Viera Silva, 1969-2010

Felipe Viera Silva (aka Felipe Gaúcho) passed away on 5 March 2010.

Glassfish V3 Resources with the Administration CLI tool (asadmin)

I just updated the Cejug-Classifieds Project to support Maven 2 builds and I added some new features, including a Shell Script able to...

Jersey feat. jQuery + JSONP

One of the most controversial but yet powerful techniques for integrating distributed systems is the JSONP format, a javascript function that...

Fixing Broken Windows #1: beans.xml validation in Java EE 6

CDI is one of the best features of Java EE 6,...

My slides from Jfokus 2010

Here it is the PDF version of my slides @Jfokus 2010, the great Java conference in Sweden....

Jfokus 2010 Wrap-Up

Quickies

  • Jfokus team: fantastic people!
Good Java developers deserve better salaries

My mailbox aggregates several Java User Groups and other specialized sources of information about the Java universe, with special guests like CEJUG and the Java EE community. Many of these Java...

Glassfish SecurityManager.checkPermission

After configuring Hudson to run in a Glassfish with security manager enabled I started to have...

True Abstraction Revisited: Composite UI Components in JSF 2.0

I got some difficulties following the tutorial about creating components with JSF 2.0, mainly due to some obsolete instructions and Maven dependencies of the more than 1 year old original articles...

Webapps with Eclipse and Maven (maven-war-plugin)

Web applications created by the Eclipse IDE contains an annoying folder WebContent to host the web resources and deployment descriptors. Quite natural for Eclipse users, this feature...

Jazoon'10 Call for Papers

Jazoon 2010 is calling for papers, with a renewed website and some surprises reserved for the ones accepted in the conference. Jazoon is an international Java...

JAXB Customization of xsd:dateTime

A small JAXB puzzle: how to define a custom element to serialize Date objects with the TimeZone information? Piece of cake, isn't it? Try it yourself and you will be surprised with the tricky...

Dismantling monoliths

When I comment in mailing lists that I am implementing a registration module for...

Testing PDF files with Canoo Webtest and Maven2

This week I received one of that lovely and tricky tasks: to learn Canoo webtest, test it and prove its usefulness to the...

CI of the Arena Project now available to Windows users

With the newcomer Vaadin module I updated the Arena Project script to support builds on...

Speaking at Jfokus 2010

My presentation about exposing Domain Models through RESTful Web-Services has been accepted at Jfokus, a Java conference to happen in January 2010 in the...

JPA Join Table with additional state

JPA has its puzzles and from time to time it is useful to write down that tricky solution for our mapping needs.This entry describes a ManyToMany relationship with an additional state in the...

Java EE Continuous Integration powered by Maven & Glassfish

Can you compile, deploy and test your Java EE projects with just 1 line of command? Check it out.

Failed to serialize hudson.model.Actionable#actions for class hudson.maven.MavenBuild

The problem

I just started a new Glassfish v2.1 and deployed a Hudson 1.327 on it. Unfortunatelly, after configuring my first build, it always failed due to a serialization problem:

The pedantic guide for a RESTful Registration Use Case

Registration is one of most implemented use cases ever, but things get a bit different when you try to implement it in a RESTful Web-Service.

Before I start the discussion about the...

Handling Poison Messages with Glassfish

Poison messages are basically delivery deadlocks caused by a continuous redelivery of a message to a JMS Queue or Topic. That usually happens due to...

URL patterns are more flexible in Jersey than in the web.xml

Rule of thumb: Avoid to use {variables} as the first path of a Jersey's @Path

I am working on the Arena PUJ Project, a RESTful...

Long or int to declare JPA numeric primary keys?

I have just two arguments to avoid using long as type of the primary keys of JPA Entities:

A REST project with Glassfish

I am working out a new pet project, an online system to support PUJ Competitions. It is still a work under progress and I...

Have a nice weekend java.net

For the last few years, java.net portal is supporting for free my blogs and my projects. I am very thankful for SUN and Collabnet for this excellent resource, and I am pretty sure all people...

Don't break the optimistic locking

During Jazoon 2009 I got few minutes of private attention from Mike Keith...

RSJUG BBQ

Winter time in Porto Alegre, nice time for a long chimarrão with my family and also a good time to finally met some of my virtual...

Gosling oppening the Jazoon 2009

James Golsling introduced a brief view on the Java world this morning at Zürich. It is always a joy to listen a successful geek onthe stage, probably one of the most successful geek of the last...

Pocket guide to Jazoon 2009

Java conferences are always a joy of technology and networking but sometimes we just miss its surroundings because it is quite difficult to concentrate in our lives while we are exposed to a large...

SUN Certification Model getting much better

The SUN Certification Reception during JavaOne brought us one of the most wanted news: the memory tests will be replaced by real coding certification. We can wait the new...