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java-interview-questions-answers

Java EE 7 with Angular JS – CRUD, REST, Validations – Part 2

This is the promised follow up to the Java EE 7 with Angular JS – Part 1. It took longer than I expect (to find the time to prepare the code and blog post), but it’s finally here! The ...
java-interview-questions-answers

Kafka Benchmark on Chronicle Queue

Overview I was recently asked to compare the performance of Kafka with Chronicle Queue.  No two products are exactly alike, and performing a fair comparison is not easy.  We can try ...
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How to connect to MongoDB from a Java EE stateless application

In this post I will present how to connect to MongoDB from a stateless Java EE application, to take advantage of the built-in pool of connections to the database offered by the MongoDB ...
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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 ...
spring-interview-questions-answers

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 ...
java-interview-questions-answers

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 ...
java-interview-questions-answers

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 ...
spring-interview-questions-answers

One Jar To Rule Them All: Apache TomEE + Shrinkwrap == JavaEE Boot

WARNING: I am not an expert of Spring Boot. There are a lot of things that I find really interesting about it and of course that can really improve your day-to-day work. Moreover I ...
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