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It’s okay for academic software to suck

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Bozhidar Bozhanov wrote an blog post titled “The Low Quality of Academic Code“, in which he observed that most academic software is poorly written. He’s makes plenty of fair points, e.g.: … there are too many freshman mistakes – not considering thread-safety, cryptic, ugly and/or stringly-typed APIs, lack of type-safety, poorly named variables and methods, choosing bad/slow serialization formats, writing ...

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Replacing Inheritance with Composition

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Quite a while back, I posted about how, despite the fact that you should prefer composition over inheritance, you can best design classes for inheritance. Now, I wish to give some examples of how you can take your code that uses inheritance and change it to use composition instead, which will often actually make your code more flexible. The code ...

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DevOps is Killing Maintenance. Let’s Celebrate.

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DevOps probably isn’t killing developers. But it is changing how people think about development – from running projects to a focus on building and running services. And more importantly, DevOps is killing maintenance, or sustaining engineering, or whatever managers want to call it. And that’s something that we should all celebrate. High-bandwidth collaboration and rapid response to change in Agile ...

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Log Collection With Graylog on AWS

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Log collection is essential to properly analyzing issues in production. An interface to search and be notified about exceptions on all your servers is a must. Well, if you have one server, you can easily ssh to it and check the logs, of course, but for larger deployments, collecting logs centrally is way more preferable than logging to 10 machines ...

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Top 5 Java Performance Metrics to Capture in Enterprise Applications

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Interested to see how you can capture these Java Performance Metrics with AppDynamics? Start a FREE trial now! The last couple articles presented an introduction to Application Performance Management (APM) and identified the challenges in effectively implementing an APM strategy. This article builds on these topics by reviewing five of the top performance metrics to capture to assess the health ...

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Wildfly, Apache CXF and @SchemaValidation

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Over the last few days, I have been working on an application migration from JBoss 4 to Wildfly 8. The application is using different technologies, but we are going to focus here on XML Web Services, JAX-WS. Yeah, I know that they are not trendy anymore, but these were developed a long time ago and need to be maintained for ...

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PostgreSQL’s Best-Kept Secret, and how to Use it with jOOQ

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PostgreSQL has a lot of secret data types. In recent times, PostgreSQL’s JSON and JSONB support was hyped as being the NoSQL on SQL secret (e.g. as advertised by ToroDB) that allows you to get the best out of both worlds. But there are many other useful data types, among which the range type. How does the range type work? ...

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Docker Machine on Windows – How To Setup You Hosts

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I’ve been playing around with Docker a lot lately. Many reasons for that, one for sure is, that I love to play around with latest technology and even help out to build a demo or two or a lab. The main difference, between what everybody else of my colleges is doing is, that I run my setup on Windows. Like ...

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Using Junit Test Name

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Name your tests When we create Junit test usually there is no practical use of the name of the method. The Junit runner uses reflection to discover the test methods and since version 4 you are not restricted to start the name of the method with test anymore. The name of the test methods are there for documentation purpose. There ...

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