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Beyond Thread Pools: Java Concurrency is Not as Bad as You Think

Apache Hadoop, Apache Spark, Akka, Java 8 streams and Quasar: The classic use cases to the newest concurrency approaches for Java developers There’s a lot of chatter going around ...
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Lightweight Integration Tests for Eclipse Extensions

Recently I introduced a little helper for Eclipse extension point evaluation. The auxiliary strives to reduce boilerplate code for common programming steps, while increasing development ...
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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 ...
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How to Upload Images to DropBox In Java

This Tutorial explains how to upload images to drop box and get the public url of uploaded image . First of all we have to create a DropBox API app using app console. Once you create ...
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Adaptive heap sizing

While enhancing our test bed to improve the Plumbr GC problem detector,  I ended up writing a small test case I thought might be interesting for the wider audience. The goal I was ...
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Clean Unit Test Patterns – Presentation Slides

I was given the opportunity to talk at the GDG DevFestKarlsruhe 2014 conference about ‘Clean Unit Test Patterns’. Thanks to the organizers for inviting me and thanks to all people ...
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Apache Commons IO Tutorial: A beginner’s guide

Apache Commons IO is a Java library created and maintained by the Apache Foundation. It provides a multitude of classes that enable developers to do common tasks easily and with much ...
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Chronicle Map and Yahoo Cloud Service Benchmark

Overview Yahoo Cloud Service Benchmark is a reasonably widely used benchmarking tool for testing key value stores for a significant number of key e.g 100 million, and a modest number ...
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Quo Vadis JUnit

For me JUnit is the most important library of the Java universe. But I think a new version of it is overdue. With it’s approach of having a method definition as a test definition ...
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When a String is Null but Not Null

Introduction A junior programmer on my team at work had an interesting bug.  Its symptoms I have seen more than once.  This post is what to look for and how to prevent it in the future.  ...
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