Posts Categorized: Tech

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Java … FunctionalInterface … WTF?

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If you’ve been doing “stuff” with Java 8 for a while I’m sure you’ve stepped into lambdas territory and the joys of succinct code it allows to be written. And if you are like me you probably found yourself using lambda’s everywhere you are confronted with a single-method interface. Which is allowed. In fact it’s […]

Why You Should Use Default Methods in Java 8 Interfaces

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With Java 8, Oracle introduced the concept of “default methods” in interfaces (and if you really haven’t heard of this — wtf?? — you can read more here about it: https://docs.oracle.com/javase/tutorial/java/IandI/defaultmethods.html). This argue some is a step towards multiple inheritance and as such should be banished from the oh, so pure! Java language. Others point out […]

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App Idea — About.Me

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I have been using for a while the about.me website and their mobile app Intro by about.me. (I use an Android phone, and as such I am supplying here the link to the Google Play appstore, however I’m sure they have an iOS one too you’ll have to search in the App Store for it.) For […]

Java Map and Subtleties of getOrDefault vs computeIfAbsent

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I wrote recently about the new niceties in the Map interface that Java 8 brought to light where I’m highlighting in particular 2 new methods: getOrDefault and computeIfAbsent (see my previous post here about it). These provide a cleaner (and as it turns out faster too!) way of retrieving values from a Map instance. However, […]

Java 8 — Map and the Unknown “Niceties”

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Despite Java 9 making its way into the real world nowadays, I see a lot of Java code out there still relying on the old-style Java 6-like syntax. And I’m not talking about the usage of lambda’s, stream’s and the likes, but rather some of the improvements Java 8 brought to existing classes in the […]

Netflix Nebula Gradle Plugin and project.version

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If you use the Netflix OSS Nebula plugin in gradle and you use it for automatic versioning, incrementals etc then you will come across this at some point. (And in the case that some of you have already encountered this, I have to ask why did you not write the blog post I needed when […]

Managing Project Dependencies with Gradle

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This is a set of slides that I’ve put together to showcase how we use Gradle in Netflix Ads Engineering to help with dependency management. It goes through multi-module project vs separate Gradle project per module, using properties file with Gradle to specify dependency versions and also how to use the Nebula gradle-dependency-lock to lock […]

Please Stop Using Thread.sleep() in Java!

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Ok, I need a good moan about this to the extent that it deserves its own blog post, but I had it with the bloody Thread.sleep() method in Java! I know it was the only way to “sleep” back in the day but seriously, but seriously, we have TimeUnit since JDK 1.5 — and nowadays […]