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My Move From ColdFusion to Java Development

Although I studied and experimented with different development technologies and tools throughout my college and graduate careers, my full-time professional career began with development ...
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Playing with Java 8 – Lambdas, Paths and Files

I needed to read a whole bunch of files recently and instead of just grabbing my old FileUtils.java that I and probably most developers have and then copy from project to project, I ...
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Rocking with mongodb on spring boot

I’m a fan of Spring Boot and here’s my mongodb example project on Spring Boot. Most of the mongodb example projects are so basic that you won’t go far with them. You ...
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Implementing correlation ids in Spring Boot (for distributed tracing in SOA/microservices)

After attending Sam Newman’s microservice talks at Geecon last week I started to think more about what is most likely an essential feature of service-oriented / microservice platforms ...
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Java File I/O Basics

Java 7 introduced the java.nio.file package to provide comprehensive support for file I/O. Besides a lot of other functionality this package includes the Files class (if you already ...
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JPA 2.1 Entity Graph – Part 2: Define lazy/eager loading at runtime

This is my second post on JPA 2.1 Entity Graphs. The first post described the usage of named entity graphs. These can be used to define a graph of entities and/or attributes at compile ...
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Double Checked Locking on Singleton Class in Java

Singleton class is quite common among Java developers, but it poses many challenges to junior developers. One of the key challenge they face is how to keep Singleton class as Singleton? ...
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Parsing a file with Stream API in Java 8

Streams are everywhere in Java 8. Just look around and for sure you will find them. It also applies to java.io.BufferedReader. Parsing a file in Java 8 with Stream API is extremely ...
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Writing Clean Tests – New Considered Harmful

It is pretty hard to figure out a good definition for clean code because everyone of us has our own definition for the word clean. However, there is one definition which seems to be ...
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JPA 2.1 Entity Graph – Part 1: Named entity graphs

Lazy loading was often an issue with JPA 2.0. You have to define at the entity if you want to use FetchType.LAZY (default) or FetchType.EAGER to load the relation and this mode is always ...
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