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Blogs by topic GlassFish and user felipegaucho

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J2EE

I just updated the Cejug-Classifieds Project to support Maven 2 builds and I added some new features, including a Shell Script able to configure the resources and also to deploy the the application in the Glassfish V3. The script creates all Java EE resources required by the application, like the DataSource, the JavaMail connection and the JMS Queues. In the next sections I will describe how to...
on Mar 4, 2010
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 a code bug or configuration problems in the project. How to reproduce poison messages The easiest way of reproducing the poison messages issue is to create a Message Driven Bean and then to throw an exception in its onMessage method, like the example...
on Sep 24, 2009

Web Services and XML

One of the most controversial but yet powerful techniques for integrating distributed systems is the JSONP format, a javascript function that bypasses the same origin policy of the browser. Jersey provides built-in support for JSONP and this blog demonstrates how to benefit from this feature. When JSONP is a good option? The controversial around JSONP is the fact that using JSONP your...
on Feb 25, 2010
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 web-service to support PUJ competitions. We are in the early stages of the project but we already got some resources published on the web. Let me show you a few URL samples: An insecure GET method to read all competitions promoted by a JUG: GET /{competition_id}/...
on Sep 17, 2009

Community

Here it is the PDF version of my slides @Jfokus 2010, the great Java conference in Sweden. You feedback is always welcome. And if you missed that, here you find my conference wrap-up.    
on Feb 3, 2010

Security

After configuring Hudson to run in a Glassfish with security manager enabled I started to have problems in other applications, specially web applications using reflection to access private fields in Java classes. Over the web I noticed a lot of people struggling with the same issue (Seam, GWT, Vaadin, etc). The problem is caused because most of the modern frameworks tries to access Java...
on Jan 2, 2010

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

Databases

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 intermediate table. All my examples are related to the Arena-PUJ project, the pet project I am hard working nowadays. Arena is an online system to manage academic competitions, and within its several tables...
on Oct 24, 2009
Can you compile, deploy and test your Java EE projects with just 1 line of command? Check it out. I have no time for documentations lately, but I prefer to give you a chance to early adopt my build script and take your own conclusions. Following the steps below, you will have my Java EE 5 application running in your Glassfish v2.1 server - including test data populated in the MySql database....
on Oct 9, 2009

Research

I am working out a new pet project, an online system to support PUJ Competitions. It is still a work under progress and I plan to start to blog some technical results here, but until that glorious free time I would give you a glimpse about what is keeping my blog so quiet :) So, PUJ is an academic competition where undergraduate student submit their homeworks for the evaluation...
on Sep 7, 2009