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Blogs by topic Java Enterprise and user felipegaucho

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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


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
I have just two arguments to avoid using long as type of the primary keys of JPA Entities: Integers IDs allow tables with ~2 billion records. Yes, you read well: max(Integer) = 2,147,483,647 the JPA pagination methods only accepts Integers Query setFirstResult(int startPosition) an  Query setMaxResults(int maxResult) Summary:only adopt data types long for your tables...
on Sep 7, 2009

Web Services and XML

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 registration use case, a list of terms for disambiguation: Application means a Java EE Application. (Arena-PUJ is the Java EE Application I am doing my REST experiments) Service is a RESTful Web-Service. (back-end...
on Oct 2, 2009
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


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