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Core Java
Testing Java 8 in 3 Easy Steps
tl;dr Use your CI Setup to test Java 8. The upcoming Java 8 release promises a bunch of new feature…
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Enterprise Java
How to use Reflection to Document your Data Model based on JPA Annotations
So using JPA, Hibernate or EBeans is cool when you can just annotate your Java classes, but haven’t you always…
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Enterprise Java
Messaging with RabbitMQ
We previously published a brief tutorial showing how to set up a Spring RabbitMQ Template. Now, let’s take a step…
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Core Java
The Dangers of Correlating Subtype Polymorphism with Generic Polymorphism
Java 5 has introduced generic polymorphism to the Java ecosystem. This has been a great addition to the Java language,…
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DevOps
SQL to NoSQL : Copy your data from MySQL to Couchbase
Introduction During my last interactions with the Couchbase community, I had the question how can I easily import my data…
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Desktop Java
Java 7 Swing: Creating Translucent and Shaped Windows
Java 7 Swing supports windows with transparency and non-rectangular shapes. The following screenshot shows a circular window created with 75%…
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Groovy
Comparing JARs with Groovy
It can sometimes be useful to compare the contents of two JARs. In this blog post, I demonstrate a Groovy…
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Software Development
We Don’t Need That Documentation
“We must write more documentation”. Have you heard that? I have, many times in many companies. Most people feel guilty…
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Enterprise Java
Spring MVC Custom Validation Annotations
Last tutorial, I showed how to validate a form using annotations. This works great for simple validations, but eventually, you’ll…
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