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Reducing the frequency of major GC pauses

This post will discuss a technique to reduce the burden garbage collection pauses put on the latency of your application. As I have written couple of years ago, disabling garbage collection ...
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Dead simple configuration

Whole frameworks have been written with the purpose of handling the configuration of your application. I prefer a simpler way. If by configuration we mean “everything that is likely ...
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Akka Notes – Actor Logging and Testing

In the first two parts (one, two), we briefly talked about Actors and how messaging works. In this part, let’s look at fixing up Logging and Testing our TeacherActor. Recap This ...
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Neo4j: COLLECTing multiple values

One of my favourite functions in Neo4j’s cypher query language is COLLECT which allows us to group items into an array for later consumption. However, I’ve noticed that people sometimes ...
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Spring WebApplicationInitializer and ApplicationContextInitializer confusion

These are two concepts that I mix up occasionally – a WebApplicationInitializer and an ApplicationContextInitializer, and wanted to describe each of them to clarify them for myself. I ...
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Exploring the SwitchYard 2.0.0.Alpha2 Quickstarts

In one of my last posts I explained how you get started with SwitchYard on WildFly 8.1. In the meantime the project was busy and released another Alpha2. A very good opportunity to ...
spring-interview-questions-answers

Embedded Jetty and Apache CXF: secure REST services with Spring Security

Recently I run into very interesting problem which I thought would take me just a couple of minutes to solve: protecting Apache CXF (current release 3.0.1)/ JAX-RS REST services with ...
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Optional and Objects: Null Pointer Saviours!

No one loves Null Pointer Exceptions ! Is there a way we can get rid of them ? Maybe . . .                    Couple of techniques have ...
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JUnit in a Nutshell: Yet Another JUnit Tutorial

Why Another JUnit Tutorial? JUnit seems to be the most popular testing tool for developers within the Java world. So it is no wonder that there have been written some good books about ...
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Apache Camel for Micro­service Architectures

I’ve been using microservice architectures before I knew they were called so. I used to work with pipeline applications made up of isolated modules that interact with each other ...
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