The Journal

Field notes from four decades of building systems that scale.

Architecture, machine intelligence, engineering leadership — written for technical leaders who'd rather build than speculate.

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MAR 13 · 2014

Configuring Play2War with Play 2.2 and build.sbt

I had previously used Play2War with Play 2 projects that contained a Build.scala file following the configuration directions from Play2War. However, when attempting to configure a newer project which now uses a build.sbt instead of the...

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howto · JAN 04 · 2014

How to configure an SSL Certificate with Play Framework for https

I spent hours trying to get this to work, and in the end, then problem was that I did not generate the CSR (Certificate Request) myself with the keytool.

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glassfish · DEC 06 · 2013

How to run a Play Framework Application in Tomcat or JBoss

So you have written an application using Play! Framework 2.x and your System Administrator tells you that he won’t install Play! and that your application needs to run in a supported Java Servlet Container like JBoss,...

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OCT 22 · 2013

Crowd Dialog: Crowdfunding Conference 2013

Some of you have noticed that I have not published much recently.  In addition to my day-job, I have been organizing a Crowd Funding conference for Startups and Companies that want to use Crowdfunding to finance...

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howto · JUL 25 · 2013

How to set the Java Version for Compiling a Play Framework Module

@jaliss and I were recently wondering how to make sure that a module was compiled with JSDK 1.6 after we had upgraded the Java Version on our Macbooks.

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bdd · JUL 05 · 2013

How to integrate Concordion in Play Framework and write acceptance tests in natural language

After starting to read “Specification by Example”, I wanted to have a go a writing acceptance tests for my Play Framework projects.  I stumbled onto Concordion (http://www.concordion.org/), because it is similar to Cucumber but written in and...

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annotations · JUN 27 · 2013

How to use Reflection to Document your Data Model based on JPA Annotations

So using JPA, Hibernate or EBeans is cool when you can just annotate your Java classes, but haven’t you always wished you could “generate” documentation of your data model from the code? Pulling information of the...

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howto · JUN 19 · 2013

How to compile and use a Play Framework 2 module with the source from github

Have you ever wanted to download the source of a Play Framework 2.0 module off of github and modify the source and test it?  Or have you expected it to be in some repository but for...

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tip · MAY 29 · 2013

Play Framework Tip for developing offline

This ended up being a useful tip from James Roper (@jroper) that I used recently when I was on vacation:

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browser · MAY 15 · 2013

Proof that Java, Scala and Play! Framework Developers do NOT use Internet Explorer!

I was (almost) shocked when I looked at the statistics of which Browsers are being used to access my blog. In absolute numbers Internet Explorer ends up being about 1%. Webkit is almost 75% if you...

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