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Introduction To JUnit Theories

Have you ever read a mathematical theory? It typically reads something like this: For all a, b > 0  the following is true: a+b > a and a+b > b Just typically the statements ...
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The Purpose of Documentation

When it comes to documentation the Agile Manifesto says: We have come to value working software over comprehensive documentation And I agree. If you can choose between working software ...
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The Importance of Packages

I remember approximately 15 years ago when I started learning Java. I read a lot about this ‘package’ thing and ‘namespaces’ and I totally didn’t get it. Sad thing is: While ...
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Naming Antipatterns

One of these annoying challenges when coding is finding proper names for your classes. There are some tools available making fun of our inability to come up with proper names. But while ...
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About Java Packages

I hope we all agree that methods an classes should be small and have only few dependencies. This point of view is widely accepted, while the interpretation of “small” varies. There ...
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Tips for Testing Database Code

Almost everybody understands that source code belongs into version control. Many people understand we need to test our code. Quite a few do that automatically. But everything seems ...
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My Testing and Code Analysis Toolbox

Last week we kicked of a “Testing Skill Group” at LINEAS, a group for exchanging knowledge about testing. One question that came up over and over again in various flavors was: What ...
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The Three Ways to Work with Code

Obviously you read code more often than you write it. Nothing new here. This fact is brought up often when the need for clean code is discussed. Or when the merits of different programming ...
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Technical debt & the Boiling Frog

I hope everybody among my readers is familiar with the concept of technical debt: If you do a quick hack to implement a feature it might be faster to implement in the short run, but ...
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Essential Stories for any Enterprise Application Product Backlog

Most of the customers I work with are huge companies. When trying to get an application accepted in such an environment some are a real no brainer. Like Websphere Application Server. ...
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