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OSGi Testsuite: Introducing Classname Filters

OSGi Testsuite is a JUnit test-runner that collects dynamically test classes for execution. It has been published by my fellow Rüdiger about a year ago and proven useful in some projects ...
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Java performance tuning survey results (part I)

We conducted a Java performance tuning survey during October 2014. The main goal of the survey was to gathering insight into Java performance world to improve the Plumbr product offering. ...
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How Immutability Helps

In a few recent posts, including “Getters/Setters. Evil. Period.”, “Objects Should Be Immutable”, and “Dependency Injection Containers are Code Polluters”, ...
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Use reactive streams API to combine akka-streams with rxJava

Just a quick article this time, since I’m still experimenting with this stuff. There is a lot of talk around reactive programming. In Java 8 we’ve got the Stream API, we ...
spring-interview-questions-answers

Spring boot war packaging

Spring boot recommends creating an executable jar with an embedded container (tomcat or jetty) during build time and using this executable jar as a standalone process at runtime. It ...
java-interview-questions-answers

EasyCriteria has evolved to uaiCriteria. New name and more features

Hello, how are you? I am very happy to announce the release of the uaiCriteria, the EasyCriteria evolution. Was it really needed to change the framework name? Yes, sadly it was. I found ...
java-interview-questions-answers

How to build and clear a reference data cache with singleton EJBs, Ehcache and MBeans

In this post I will present how to build a simple reference data cache in Java EE, using singleton EJBs and Ehcache. The cache will reset itself after a given period of time, and can ...
spring-interview-questions-answers

Spring Rest API with Swagger – Exposing documentation

Once you create API documentation it is important to make it available to the stakeholders. In ideal case, this published documentation would be flexible enough to account for any ...
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Java Annotations Tutorial – The ULTIMATE Guide (PDF Download)

EDITORIAL NOTE: Annotations in Java are a major feature and every Java developer should know how to utilize them. We have provided an abundance of tutorials here at Java Code Geeks, ...
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Using the Neo4j browser with Embedded Neo4j

There are times when you have an application using Neo4j in embedded mode but also need to play around with the graph using the Neo4j web browser. Since the database can be accessed ...
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