I was contacted recently by the guys over at Samebug. We had a few chats about their product and we came to the subject of JUnit5 extensions. At that point, I volunteered to make a Samebug extension, one that will harness Samebug’s power and enrich the error output of tests. But let’s take it from the top. What is Samebug? Samebug is …
A few days ago I needed to publish a library to Maven Central for the first time. After publishing, my plan was to write a tutorial on how it is supposed to be done. But it turned out there was absolutely no need for yet another tutorial. Sonatype’s OSS Repository Hosting (OSSRH) does a perfect job at explaining in detail …
When serializing POJOs to JSON we lose a very valuable information about the polymorphic nature of the Java object. When we deserialize the same object from JSON we have to know the exact object type and we cannot deserialize to a supertype. Lucky for us, Jackson offers the option of polymorphic deserialization. The problem when deserializing JSON to POJO Let …
Log hierarchy in Logback is based on the log names. That is a characteristic that makes lots of interesting and handy features possible. The post looks into a couple of examples how that works. How named log hierarchy works According to the logger documentation, a logger is said to be an ancestor of another logger if its name followed by a …
