Personally i like using these plugins for development phase of a project in a team because it eliminates the time you spend for running the applications painlessly as soon as checking out the project from it’s code base. But debugging the running code under maven process can be tricky if you don’t know how to.

In the careers of most Spring/Hibernate developers I know, there sooner or later comes a point of no escape...they have to write a Hibernate user type. The first one is usually of the copy'n'paste variety, and by and large works perfectly well. Until it doesn't. In this post, we'll be dissecting the Hibernate UserType interface, explaining the relationships between the various methods, and developing a set of base user types that capture common use cases.

iText is a library that allows you to generate PDF files on the fly. The blog covers how to: 1. Create PDF using PDF Template and PDF Form 2. Appending documents using PdfStamper

I used to be strongly opposed to this idea but I started changing my mind recently. Here is what happened.

One the comments I'm getting about Atmosphere is why should I use the framework instead of waiting for Servlet 3.0 Async API. Well, it simple: much simpler, works with any existing Java WebServer (including Google App Engine!), and will auto-detect the Servlet 3.0 Async API if you deploy your application on a WebServer that support it.

Last week I attended a groovy & grails training by SpringSource. My first introduction into grails is about 2 years a go. I attended a talk at the spring experience. Back than I liked it, tried it, but did not really use it. By now a lot has changed, most of all very good tool integration by intellij. Last week I had the change to go to a training, now I am motivated to start using grails more often. This post I will talk you through a grails application I have created for a project of mine. I also take you through some of the things I learned last week. Finally I’ll show you that you can create a google app engine application using grails. There are ways to create grails applications, I’ll show you how to do it using the latest intellij 9 beta release.

One of the great strengths of the JBoss software is in the integrations between projects. In this post, we'll examine the Riftsaw - JBoss ESB integration to connect Riftsaw BPEL processes to ESB services.

The quick and dirty way to concatenate strings in Java is to use the concatenation operator (+). This will yield a reasonable performance if you need to combine two or three strings (fixed-size). But if you want to concatenate n strings in a loop, the performance degrades in multiples of n. Given that String is immutable, for large number of string concatenation operations, using (+) will give us a worst performance. But how bad ? How StringBuffer, StringBuilder or String.concat() performs if we put them on a performance test ?. This article will try to answer those questions. We will be using Perf4J to calculate the performance, since this library will give us aggregated performance statistics like mean, minimum, maximum, standard deviation over a set time span. In the code, we will concatenate a string (*) repeatedly 50,000 times and this iteration will be performed 21 times so that we can get a good standard deviation. The following methods will be used to concatenate strings.

Presentation on the advantages and disadvantages of Mercurial (a distributed version control system) over centralized version control tools like subversion. Goes into some detail in the concepts of how Mercurial works and a conceptual model that will help people understand how branching/merging in mercurial works.

It’s so popular that nowadays almost all web applications on the internet use Facebook Connect to attract their potential users to move their pre-built social networking structure to on their own systems. Here i would like to share you a how to integrate Facebook Connect with your Spring enabled web application.

This episode is definitely worth watching!

Among the scars aired Wednesday: Early work on XML that was dogged by politics as Java, middleware, and server rivals IBM and Sun Microsystems butted heads.

I downloaded and unzipped Griffon 0.2 today. Because I set GRIFFON_HOME and added its bin to PATH, I could immediately begin using it in NetBeans IDE (to which end I recompiled the NetBeans Griffon plugin so that it now works in 6.8 Beta).

How to install JRE in Ubuntu 9.10

Gradle is a build system to build software projects. Gradle supports convention over configuration, build-in takss and dependency support. We write a build script in Groovy (!) to define our Gradle build. This means we can use all available Groovy (and Java) stuff we want, like control structures, classes and methods. In this post we see how we can use Gradle to build a very simple mixed Java and Groovy projec