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Reporting Metrics to Apache Kafka and Monitoring with Consumers

Apache Kafka has been used for some time now by organizations to consume not only all of the data within its infrastructure from an application perspective but also the server statistics of the running applications and infrastruc ...
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Groovy 2.3 introduces traits

A few days ago the second beta of Groovy 2.3 got released. One of the major new Groovy 2.3 features are traits. A trait is a reusable set of methods and fields that can be added to one or more classes. A class can be composed out ...
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Handy New Map Default Methods in JDK 8

The Map interface provides some handy new methods in JDK 8. Because the Map methods I cover in this post are implemented as default methods, all existing implementations of the Map interface enjoy the default behaviors defined in ...
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Scheduling Repeated Tasks in Android

A somewhat common usecase for android applications is to have them launched when the phone is started, and execute some piece of code periodically. Sounds straightforward, but there are some pitfalls, so here are a couple of steps ...
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Validating JAX-RS resource data with Bean Validation in Java EE 7 and WildFly

I have already approached this subject twice in the past. First, on my post Integrating Bean Validation with JAX-RS in Java EE 6, describing how to use Bean Validation with JAX-RS in JBoss AS 7, even before this was defined in the ...
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Spring test with thymeleaf for views

I am a recent convert to thymeleaf for view templating in Spring based web applications, preferring it over jsp’s. All the arguments that thymeleaf documentation makes on why thymeleaf over jsp holds water and I am definitel ...
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Efficient Code Coverage with Eclipse

There is a saying that a fool with a tool is still a fool. But how to use a tool most efficiently is not always obvious to me. Because of this I typically spend some time to check out new playgrounds1 that promise to increase my w ...
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OpenSource License Manager

What is a License Manager? License managers are used to enforce license rights, or at least to support the enforcement. When you develop an open source program, there is no much you need to or can do to enforce license rights. The ...
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HOW-TO: Spring Boot and Thymeleaf with Maven

Spring Boot is a great piece of software allowing you to bootstrap Spring application within a few seconds. And it really works. As little configuration as possible to get started. And still possible to change the defaults. Let ...
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Clean Synchronization Using ReentrantLock and Lambdas

Recently I was reading an informative post about the differences between synchronized vs ReentrantLock by Javin Paul1. He emphasises on the advantages of the latter, but does not withhold some downsides, which are related to the c ...
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