The new Certification Class of REST With Spring is out:


Lots of interesting writeups on Java 9 this week.

Here we go…

1. Spring and Java

>> Cleaner Parameterized Tests With JUnit 5 []

JUnit 5 brings many new exciting features – one of which will definitely be the native support for parameterized tests.

>> The best way to map the @DiscriminatorColumn with JPA and Hibernate []

A quick but comprehensive guide to mapping the @DiscriminatorColumn.

Also worth reading:

Webinars and presentations:

Time to upgrade:

2. Technical

>> How “Effective Java” may have influenced the design of Kotlin — Part 1 []

A very interesting analysis of how some of the central points in “Effective Java” have shaped the design of Kotlin.

>> Electronic Signature Using The WebCrypto API []

An interesting idea of “placing” an electronic signature using the WebCrypto API.

Also worth reading:

3. Musings

>> The Hidden Costs of Slow Websites []

Having a slow site can be more costly than you might think, so investing in performance is always a good idea.

Also worth reading:

4. Comics

And my favorite Dilberts of the week:

>> Two hours late []

>> It’s hard to be a misunderstood genius []

>> My European vacation starts tomorrow []

5. Pick of the Week

>> 9 Logging Sins in Your Java Applications []

Go deeper into building a REST API with Spring: