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Explore Git Internals with the JGit API

Have you ever wondered how a commit and its content is stored in Git? Well, I have, and I had some spare time over the last rainy weekend, so I did a little research. Because I feel ...
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Spring Boot / Java 8 / Tomcat 8 on Openshift with DIY

DIY cartridge is an experimental cartridge that provides a way to test unsupported languages on OpenShift. It provides a minimal, free-form scaffolding which leaves all details of the ...
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Let’s Stream a Map in Java 8 with jOOλ

I wanted to find an easy way to stream a Map in Java 8. Guess what? There isn’t! What I would’ve expected for convenience is the following method:                   public ...
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Neo4j: Cypher – Avoiding the Eager

  Although I love how easy Cypher’s LOAD CSV command makes it to get data into Neo4j, it currently breaks the rule of least surprise in the way it eagerly loads in all rows ...
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Why to use String

Recently I was tutoring juniors during a training session. One of the task was to write a class that can dwarwle maps based on some string key. The result one of the juniors created ...
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Java Extension Mechanism Loads All JARs

The Java Extension Mechanism is described in the Java Tutorial as a “standard, scalable way to make custom APIs available to all applications running on the Java platform.” ...
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Supercharged jstack: How to Debug Your Servers at 100mph

A guide for using jstack to debug live Java production servers jstack is like U2 – it’s been with us since the dawn of time, and we can’t seem to be rid of it. Jokes aside, ...
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Understanding Spring Web Application Architecture: The Classic Way

Every developer must understand two things:                    Architecture design is necessary. Fancy architecture diagrams don’t ...
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Revealing the length of Garbage Collection pauses

There are several ways to improve your product. One such way is to carefully track what your users are experiencing and improve based on that. We do apply this technique ourselves and ...
spring-interview-questions-answers

Spring Rest API with Swagger – Integration and configuration

Nowadays, exposed APIs are finally getting the attention they deserve and companies are starting to recognize their strategic value. However, working with 3rd party APIs can be really ...
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