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Static Typing Is Not for Type Checking

In his post “Strong typing vs strong testing” Bruce Eckel described the idea, that statically (or strongly) typed languages don’t give you much, because you should verify your ...
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Java EE with NetBeans on OpenShift

Today was NetBeans Day in Munich. I had the pleasure to present one session about the integration of Red Hat’s products with my famous IDE. So, I’ve been talking about WildFly, ...
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Who Removes Your Obstacles?

In self-organizing teams, teams remove their own obstacles. It’s a good idea. It can be difficult in practice. In Scrum, the Scrum Master is supposed to facilitate removing the team’s ...
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Unit test life?

You can not program without testing. You write unit tests first and then you write your code. (Well, I know you don’t but just let’s focus on best practice.) When there is an error ...
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DevOps Is The New Agile

In The Structure of Scientific Revolutions, Thomas Kuhn argues that science is not a steady accumulation of facts and theories, but rather an sequence of stable periods, interrupted ...
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Grails Spring Security Core Plugin – Registering Callback Closures

I was searching for a way to hook business logic after successful user login while using Spring Security Core plugin. The simplest way to do this is to register callback closures. It ...
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Spring RestTemplate with a linked resource

Spring Data REST is an awesome project that provides mechanisms to expose the resources underlying a Spring Data based repository as REST resources. Exposing a service with a linked ...
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Spark: Write to CSV file

A couple of weeks ago I wrote how I’d been using Spark to explore a City of Chicago Crime data set and having worked out how many of each crime had been committed I wanted to write ...
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Spring request-level memoization

Introduction Memoization is a method-level caching technique for speeding-up consecutive invocations. This post will demonstrate how you can achieve request-level repeatable reads for ...
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Spring Data JPA Tutorial: Introduction

Creating repositories that use the Java Persistence API is a cumbersome process that takes a lot of time and requires a lot of boilerplate code. We can eliminate some boilerplate code ...
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