Java
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Testing System.in and System.out with system-rules
Writing unit tests is an integral part of software development. One problem you have to solve when your class under…
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Hibernate locking patterns – How does Optimistic Lock Mode work
Explicit optimistic locking In my previous post, I introduced the basic concepts of Java Persistence locking. The implicit locking mechanism…
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Learning Netflix Governator – Part 2
To continue from the previous entry on some basic learnings on Netflix Governator, here I will cover one more enhancement…
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SSL with WildFly 8 and Undertow
I’ve been working my way through some security topics along WildFly 8 and stumbled upon some configuration options, that are…
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Self-Signed Certificate for Apache TomEE (and Tomcat)
Probably in most of your Java EE projects you will have part or whole system with SSL support (https) so…
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NoSQL with Hibernate OGM – Part one: Persisting your first Entities
The first final version of Hibernate OGM is out and the team recovered a bit from the release frenzy. So…
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Java8 Lambdas: Sorting Performance Pitfall EXPLAINED
Written in collaboration with Peter Lawrey. A few days ago I raised a serious problem with the performance of sorting…
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Logging to Redis using Spring Boot and Logback
When doing centralized logging, e.g. using Elasticsearch, Logstash and Kibana or Graylog2 you have several options available for your Java…
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Separating Integration Tests from Unit Tests Using Maven Failsafe & JUnit @Category
Why Unit Tests Should Run Separately From Integration Tests TDD at the Unit Testing level is fairly straight-forward, since classes in unit…
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