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Enterprise Java
Openshift: Build Spring Boot application on Wildfly 8.2.0 with Java 8
OpenShift DIY cartridge is a great way to test unsupported languages on OpenShift. But it is not scalable (you can…
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Enterprise Java
JPA 2.1 criteria delete/update and temporary tables in Hibernate
Since JPA version 2.0 the EntityManager offers the method getCriteriaBuilder() to dynamically build select queries without the need of string…
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Desktop Java
JavaFX Tip 18: Path Clipping
I recently noticed that the PopOver control, which I committed to the ControlsFX project, does not properly clip its content.…
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Core Java
Thou Shalt Not Name Thy Method “Equals”
(unless you really override Object.equals(), of course). I’ve stumbled upon a rather curious Stack Overflow question by user Frank: Why…
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Core Java
Using junit for something else
junit != unit test Junit is the Java unit testing framework. We use it for unit testing usually, but many…
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Core Java
Java 8 pitfall – Beware of Files.lines()
There’s a really nice new feature in Java8 which allows you to get a stream of Strings from a file…
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Enterprise Java
Calculate PageRanks with Apache Hadoop
Currently I am following the Coursera training ‘Mining Massive Datasets‘. I have been interested in MapReduce and Apache Hadoop for…
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Enterprise Java
Database Migrations in Java EE using Flyway
Database schema of any Java EE application evolves along with business logic. This makes database migrations an important of any…
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Software Development
TDD Against the Clock
A couple of weeks ago I ran a “TDD Against the Clock” session. The format is simple: working in pairs…
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