About Tomasz Nurkiewicz
Java EE developer, Scala enthusiast. Enjoying data analysis and visualization. Strongly believes in the power of testing and automation.
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Clojure macros for beginners
This article will guide you step-by-step (or even character-by-character) through the process of writing macros in Clojure. I will focus on fundamental macro characteristics while explaining ...
Mapping enums done right with @Convert in JPA 2.1
If you ever worked with Java enums in JPA you are definitely aware of their limitations and traps. Using enum as a property of your @Entity is often very good choice, however JPA prior ...
Null safety in Kotlin
Kotlin is a statically typed JVM language developed by Jetbrains. It has some good documentation so today I will focus on a tiny part of it – null safety.There are at least ...
Lazy sequences implementation for Java 8
I just published LazySeq library on GitHub – result of my Java 8 experiments recently. I hope you will enjoy it. Even if you don’t find it very useful, it’s still ...
Java 8: CompletableFuture in action
After thoroughly exploring CompletableFuture API in Java 8 we are prepared to write a simplistic web crawler. We solved similar problem already using ExecutorCompletionService, Guava ...
Java 8: Definitive guide to CompletableFuture
Java 8 is coming so it’s time to study new features. While Java 7 and Java 6 were rather minor releases, version 8 will be a big step forward. Maybe even too big? Today I will ...
Synchronising Multithreaded Integration Tests revisited
I recently stumbled upon an articleSynchronising Multithreaded Integration Tests on Captain Debug’s Blog. That post emphasizes the problem of designing integration tests involving ...
Lazy sequences in Scala and Clojure
Lazy sequences (also known as streams) are an interesting functional data structure which you might have never heard of. Basically lazy sequence is a list that is not fully known/computed ...
Scala traits implementation and interoperability. Part II: Traits linearization
This is a continuation of Scala traits implementation and interoperability. Part I: Basics. Dreadful diamond problem can be mitigated using Scala traits and a process called linearization. ...
SiftingAppender: logging different threads to different log files
One novel feature of Logback is SiftingAppender (JavaDoc). In short it’s a proxy appender that creates one child appender per each unique value of a given runtime property. Typically ...
