Java
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Picocli 2.0: Do More With Less
Introduction Picocli is a one-file command line parsing framework that allows you to create command line applications with almost no…
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DataSource Routing with Spring @Transactional
I was inspired by Carl Papa’s use of aspects with the Spring Framework to determine the DataSource to use (either…
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Power Up Your Data Model With Projections
Introduction Data models can be tricky. Modelling can be even harder. Sometimes information that should go into a database table…
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20 Years Of Java
Twenty years ago in a Zurich apartment two momentous things happened. My daughter took her first steps and a young…
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Java 9 at a glance
To many Java 9 may seem to be a maintenance release that pushes forward project Jigsaw that couldn’t make it…
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Integration tests with Maven
Implementing unit tests with maven is something ordinary and most of us are familiar with the project structure and where…
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Transactional exception handling in CDI
In Java EE, exceptions that are raised during the execution of a transactional business method cause the transaction to rollback.…
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Write custom AssertJ assertions
AssertJ is an alternative matching library to the widely used Hamcrest matchers. For my own projects I in fact have…
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Hollowjars, Deployment scanner and why Wildfly swarm is cool
In a previous post I described how you can use OpenLiberty and maven to start the server, either as a…
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