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Category Archives: Software Engineering
Java Self Loathing
Oracle hates its own product so much (Java) that it actively discourages people from ever running it. This is apparent in the JNLP dialogs you get when starting an application for the first time. Can you spot the difference? Both … Continue reading
Posted in Software Engineering, Uncategorized
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RIP REST
2018 resolution: Say RIP to REST – aka “the year of RIP REST” The specific resolution – only use “REST” casually, as a synonym for “client-server” REST has had a pretty good run. The PhD dissertation was published in 2000. … Continue reading
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The future of AngularJS and Angular 2
It has been fun developing AngularJS applications. It was the first complete framework that was both a higher level of abstraction than jQuery and easy enough (not “easy”, per se) to learn and use. You can even play with my … Continue reading
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Should REST and microservice APIs be Versioned?
This is a very lively topic. The starting point for these questions must be: in our world (enterprise grade computer science), what isn’t versioned? The answer to that is: everything is versioned. Therefore, the actual question splits into two parts: … Continue reading
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Is Spring RestTemplate Thread Safe
Is Spring RestTemplate Thread Safe? The only correct answer to this question is: No A quick look at the source (the link is tied to a specific version so the line number is always correct) on line 230 shows the … Continue reading
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iptables flush and ssh
Fun lesson from today: don’t blindly clear/flush your iptables. If you are remotely managing a system, then make sure you run this: sudo iptables -P INPUT ACCEPT sudo iptables -P FORWARD ACCEPT sudo iptables -P OUTPUT ACCEPT before you run … Continue reading
Posted in Software Engineering, Ubuntu
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What is AngularJS – the key is client-side
After working with AngularJS for a couple of months now, I can finally express a concise answer to “What is AngularJS?” It is: MVC where the model is on the client side MVC where the view is a template based … Continue reading
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Amazon SDK broken dependencies
If you have received this error message: java.lang.IllegalStateException: Unsupported cookie spec: default It is because Amazon made their SDK dependency look like this: +— com.amazonaws:aws-java-sdk | +— org.apache.httpcomponents:httpclient:[4.1, 5.0) -> 4.4-beta1 | | +— org.apache.httpcomponents:httpcore:4.4-beta1 i.e. they made an open-ended … Continue reading
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Use a DSA to implement your DSL (insipired by Cucumber)
This post was inspired by The Training Wheels Came Off by Aslak Hellesøy, author of The Cucumber Book. TL;DR – Use a Domain Specific (testing) API to implement your Domain Specific Language That article describes the motivation behind removing web_steps.rb … Continue reading
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Computer Science Hard Things
There is a popular saying about Computer Science (see here and here): There are only two hard things in Computer Science: cache invalidation and naming things. — Phil Karlton There is a funny variation that makes it “There are only … Continue reading
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