The Blog

Devoxx Poland 2016

Devoxx Poland är en årlig Java och Android konferens som hålls i Krakow. I år besöktes den av 2500 utvecklare från över 20 olika länder. Trots sin storlek sålde den slut 5 veckor i förväg. devoxx_160622_053_27658187150_oContinue Reading

Podcast: Software Engineering Daily

Ett tips på hur man kan hålla sig uppdaterad på trenderna inom mjukvaruutveckling är att lyssna på en välproducerad podcast med bra bredd. Och ett tips på en sådan är Software Enginering Daily som håller hög kvalitet, intervjuar många intressanta personer och har en fantastisk bredd på sina ämnen.

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Java Barcelona Conference 2016

A week ago the second edition of the Java Barcelona Conference took of in the catalan capital. With an ambitious schedule of 8 workshops and about 50 talks, spread over four different tracks over three days, a weekend with a lot of Java and JVM-related knowledge-sharing began. The conference attracted about 300 developers who met up at the facilities of the University Pompeu Fabra. As I was there to speak about Reactive Java EE I had the opportunity to experience the conference both as a participant and as a speaker. At thursday evening the speakers dinner was held at the sport harbour of Barcelona. The organizers Barcelona JUG did an excellent work in welcoming us to their city and with a great view, great tapas and with even greater company the speakers shared a really pleasant evening. It was a true privelege to meet passionate people with the JVM

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NDC Oslo 2016

I år var nionde gången som NDC Oslo gick av stapeln och konferensen har under denna tiden vuxit till en av Europas största .NET konferenser. Den bjöd på 2 dagars workshops och 3 dagars konferens. Troy HuntContinue Reading

Managing Software Complexity

When I went to university and started learning to program I spent a lot of my free time making games from scratch, I wanted to apply some of my physics knowledge in making game engines. I started off with making a space simulation game and implemented movement based on Newton's law of motion, gravity was affecting the ships and I made them able to shoot bullets. However, the engine proved to become more difficult to program the more features I added, I wanted collision detection, support for multiple players etc. and finally ended up in scrapping it all together due to design flaws and the engine being way too complex to keep together without introducing bugs all across the board. I did not give up, though, and ended up restarting from scratch multiple times bringing knowledge of my mistakes to the next try. My point being that reducing complexity in software design is not something only the most senior software architects need to address, it is among the first problems a

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Inspelningarna av Javaforum 2016-04-26

Nu finns inspelningarna av Javaforum 2016-04-26 på Youtube-kanalen: Mine your own code med Peter Norrhall och Container Evolution med Hardy Ferentschik

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JDK9 REPL JShell – this is some exciting stuff!

A couple of years ago I worked in a project with a Python backend. As I had only used python as a script language before I soon grew to really love the powerful interactive console that let me explore and learn the language (and which saved me a few hours of debugging every week). The interactive console is the thing I miss most when I’m in my Java codebase, but fear not, with JDK9 we as Java developers will also gain the benefit of a REPL!

repl

If you have 3 minutes over, take a quick look as I scratch on the surface of JShell

JDK9 is out in early access so check it out!

Over n out
@olbpetersson

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Refactoring Legacy – A Google Guice Story

One word that sends shivers down most developers spines is ‘Legacy’. There are many different kinds of legacy-systems and obstacles that they impose. Legacy exists on a scale; on one end there are systems that you don’t want to touch because no matter what you do, they will most likely implode. On the other end there are systems that only have been mistreated code-wise or architecturally but actually have some kind of potential and can be refactored iteratively and improved upon. Some legacy-systems could be at their end of life while other will continue to live for a long time.

Not so long ago, i was a part of a team that got a legacy application assigned to us. This legacy-system was probably somewhere down the middle on the ‘legacy-scale’ and there were no plans to replace it. The perfect victim for some refactoring and improvements! Not only for the sake of the system but for the sake of the developers that are going maintain the application and introduce new features.

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Välkommen till Javaforum 26:e april

Mer information och anmälan till mötet. The meeting is sponsored by contribe 17:00 Registrering & mingel 17:30 Välkommen Tomas Trolltoft & Rikard Thulin, Squeed 17:31 Mine you own software We all strive to create better software and this presentation will focus on how to identify weak spots in the code to refactor and even predict the future. By mining software repositories

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Streams

In his talk at JFokus titled “Java Streams: Beyond the Basics“, Simon Ritter introduces us to streams which were added in JDK 8. It was a good introductory talk, aimed at those with little experience in the functional programming paradigm. To start with, let’s take an example of old pre-Java 8 style code as well […]

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