Tom Hombergs

As a professional software engineer, consultant, architect, general problem solver, I've been practicing the software craft for more than fifteen years and I'm still learning something new every day. I love sharing the things I learned, so you (and future me) can get a head start. That's why I founded reflectoring.io.

Articles by Tom Hombergs

Programming

Implementing a Consumer-Driven Contract for a React App with Pact and Jest

Tom Hombergs
October 25, 2018

Consumer-driven contract (CDC) tests are a technique to test integration points between API providers and API consumers without the hassle of end-to-end tests (read it up in a recent blog post).

Java

3 Steps to Fix NoSuchMethodErrors and NoSuchMethodExceptions

Tom Hombergs
October 8, 2018

A NoSuchMethodError occurs when we’re calling a method that does not exist at runtime. The method must have existed at compile time, since otherwise the compiler would have refused to compile the class calling that method with an error: cannot find symbol.

Java

Definitive Guide to the JaCoCo Gradle Plugin

Tom Hombergs
October 5, 2018

As discussed in my article about 100% Code Coverage*, a code coverage tool should provide the means not only to measure code coverage, but also to enforce it.

Software Craft

What is Upstream and Downstream in Software Development?

Tom Hombergs
September 27, 2018

In the recent past, I stumbled a few times over the definition of the words “upstream” and “downstream” in various software development contexts.

Spring Boot

Testing a Spring Message Producer and Consumer against a Contract with Pact

Tom Hombergs
September 13, 2018

Among other things, testing an interface between two systems with (consumer-driven) contract tests is faster and more stable than doing so with end-to-end tests.