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Pairing with docker-spoon

Whether you pair or not I think this post is worth reading. Do you ever have needs like this? Ability to create on-demand dev environments with all your dependencies in place? Ability to collaborate with local or remote folks in a low latency environment that doesn’t suck? Want bare metal performance instead of using a VM? Want to kick off ...

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Why you should avoid JSF

For a long time JSF for me was just another webframework I didn’t cared too much about. This changed. After being forced to use it for a couple of months now, I consider it a major project risk in almost all cases. Here I present the reasons for this verdict. Bad entanglement of UI and processing Logic. The official tutorial ...

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Akka Notes – DeathWatch – 7

When we talked about Actor lifecycle, we saw that Actors could be stopped by various means (using ActorSystem.stop or ActorContext.stop or sending a PoisonPill – there’s also the Kill and the gracefulStop). Whatever reason an Actor dies, there are cases when a few other actors in the system would like to know about it. Let’s take a trivial example of ...

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How to setup custom SSLSocketFactory’s TrustManager per each URL connection

We can see from javadoc that javax.net.ssl.HttpsURLConnection provided a static method to override with setDefaultSSLSocketFory() method. This allow you to supply a custom javax.net.ssl.TrustManager that may verify your own  CA certs handshake and validation etc. But this will override the default for all “https” URLs per your JVM! So how can we override just a single https URL? Looking at ...

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From Java 7 Futures to Akka actors with Scala

This blog post will show you how a step by step transition from a “java 7 and j.u.c.Future” based implementation to an “akka actor written in scala solution” looks like. It will take four steps, which are:                 Java 7 and futures Java 8 and parallel streams Scala and futures Scala and actors ...

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Server side logging from browser side JavaScript code

Application logging is something we all do in our applications that get deployed on an application server, right? Using frameworks like Log4J or Logback seems like a no-brainer to most Java developers. But what about the code we’ve written that is running in those pesky browsers? I guess that, apart from the occasional console.log() statement used during debugging, we don’t ...

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Spring from the Trenches: Using Null Values in DbUnit Datasets

If we are writing integration tests for an application that uses Spring Framework, we can integrate DbUnit with the Spring testing framework by using Spring Test DbUnit. However, this integration is not problem free. Often we have to insert null values to the database before our tests are run or verify that the value saved to the specific table column ...

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