About a month ago, I had the pleasure of taking a tutorial led by the fantastic Brendan Gregg on creating FlameGraphs using the Linux perf toolset. I recommend reading his many blog posts on the subject, but in short: while perf is an excellent resource f...

Learn how to take full advantage of the FutureTask class in Java.

Futures are an interesting conecpt in concurrent and parallel programming. I’ve written about them several time, the last time in Advanced Futures With Play Framework. Streams are a concept which came with Java 8 to operate on a stream of objects, transfo... (more…)

These are the notes for a talk I gave at JokerConf 2017, which is why they’re written as if we were talking and going through some slides together. (more…)

Hello everybody, searching through trees is one of the standard problems of every programmer. Not least because it is a standard job interv...